Classification Term: 170097

酮类、醛类、酸类 (ontology term: 酮类、醛类、酸类)

酮类、醛类、酸类

found 500 associated metabolites at class metabolite taxonomy ontology rank level.

Ancestor:

Child Taxonomies: 聚酮类, 芳香醛, 酮类, 醛类

Gentisate

2,5-Dihydroxybenzoic acid, matrix substance for MALDI-MS, >=99.5\\% (HPLC), Ultra pure

C7H6O4 (154.0266076)


Gentisic acid, also known as gentisate or 2,5-dioxybenzoate, belongs to the class of organic compounds known as hydroxybenzoic acid derivatives. Hydroxybenzoic acid derivatives are compounds containing a hydroxybenzoic acid (or a derivative), which is a benzene ring bearing a carboxyl and a hydroxyl groups. Gentisic acid is also classified as a dihydroxybenzoic acid. It is a derivative of benzoic acid and a minor (1\\\\\%) product of the metabolic break down of aspirin, which is excreted by the kidneys. Gentisic acid is found in essentially all organisms ranging from bacteria to fungi to plants to animals. Gentisic acid has been associated with a number of useful effects on human health and exhibits anti-inflammatory, antigenotoxic, hepatoprotective, neuroprotective, antimicrobial, and especially antioxidant activities (PMID: 31825145). It is widely distributed in plants as a secondary plant product such as Gentiana spp., Citrus spp., Vitis vinifera, Pterocarpus santalinus, Helianthus tuberosus, Hibiscus rosa-sinensis, Olea europaea, and Sesamum indicum and in fruits such as avocados, batoko plum, kiwi fruits, apple, bitter melon, black berries, pears, and some mushrooms (PMID: 31825145). Gentisic acid is found in higher concentrations in a number of foods such as tarragons, common thymes, and common sages and in a lower concentration in grape wines, rosemaries, and sweet marjorams. Gentisic acid has also been shown to act as a pathogen-inducible signal for the activation of plant defenses in tomato plants and cucumbers (PMID: 16321412; https://doi.org/10.1094/MPMI.1999.12.3.227). Gentisic acid is a dihydroxybenzoic acid. It is a crystalline powder that forms monoclinic prism in water solution. Gentisic acid is an active metabolite of salicylic acid degradation. There is an increasing amount of evidence indicating that gentisic acid has a broad spectrum of biological activity, such as anti-inflammatory, antirheumatic and antioxidant properties. Gentisic acid is also a byproduct of tyrosine and benzoate metabolism. [HMDB]. Gentisic acid is found in many foods, some of which are common sage, common grape, nutmeg, and dill. 2,5-dihydroxybenzoic acid is a dihydroxybenzoic acid having the two hydroxy groups at the 2- and 5-positions. It has a role as a MALDI matrix material, an EC 1.13.11.33 (arachidonate 15-lipoxygenase) inhibitor, a human metabolite, a fungal metabolite and a mouse metabolite. It is functionally related to a benzoic acid. It is a conjugate acid of a 2,5-dihydroxybenzoate. 2,5-Dihydroxybenzoic acid is a natural product found in Persicaria mitis, Tilia tomentosa, and other organisms with data available. D000893 - Anti-Inflammatory Agents > D000894 - Anti-Inflammatory Agents, Non-Steroidal > D012459 - Salicylates A dihydroxybenzoic acid having the two hydroxy groups at the 2- and 5-positions. 2,5-Dihydroxybenzoic acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=490-79-9 (retrieved 2024-07-01) (CAS RN: 490-79-9). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). 2,5-Dihydroxybenzoic acid is a derivative of benzoic and a powerful inhibitor of fibroblast growth factors. 2,5-Dihydroxybenzoic acid is a derivative of benzoic and a powerful inhibitor of fibroblast growth factors.

   

(2R,3R,4R)-2-Amino-4-hydroxy-3-methylpentanoic acid

(2S,3R,4S)-2-Amino-4-hydroxy-3-methylpentanoic acid (H-L-Ile(4-OH)-OH)

C6H13NO3 (147.0895388)


(4S)-4-hydroxy-L-isoleucine is an L-isoleucine derivative that is L-isoleucine bearing a (4S)-hydroxy substituent. It has a role as a plant metabolite. It is an amino alcohol, a L-isoleucine derivative and a non-proteinogenic L-alpha-amino acid. It is a tautomer of a (4S)-4-hydroxy-L-isoleucine zwitterion. See also: Fenugreek seed (part of). L-Ribo-2-Amino-4-hydroxy-3-methylpentanoic acid is found in herbs and spices. L-Ribo-2-Amino-4-hydroxy-3-methylpentanoic acid is a major constituent of Trigonella foenum-graecum (fenugreek (2S,3R,4S)-4-Hydroxyisoleucine is an orally active compound isolated from Trigonella foenum-graecum, with anti-diabetes and anti-diabetic nephropathy activity[1]. (2S,3R,4S)-4-Hydroxyisoleucine is an orally active compound isolated from Trigonella foenum-graecum, with anti-diabetes and anti-diabetic nephropathy activity[1]. 4-Hydroxyisoleucine (4-?Hydroxy-?L-?isoleucine) is an amino acid which can be extracted and purified from fenugreek seeds. 4-Hydroxyisoleucine (4-?Hydroxy-?L-?isoleucine) displays an insulinotropic activity of great interest[1]. 4-Hydroxyisoleucine (4-?Hydroxy-?L-?isoleucine) is an amino acid which can be extracted and purified from fenugreek seeds. 4-Hydroxyisoleucine (4-?Hydroxy-?L-?isoleucine) displays an insulinotropic activity of great interest[1].

   

3,4-Dihydroxybenzeneacetic acid

3,4-Dihydroxyphenylacetic Acid, Monosodium Salt

C8H8O4 (168.0422568)


3,4-Dihydroxyphenylacetic acid (DOPAC) is a phenolic acid. DOPAC is a neuronal metabolite of dopamine (DA). DA undergoes monoamine oxidase-catalyzed oxidative deamination to 3,4-dihydroxyphenylacetaldehyde (DOPAL), which is metabolized primarily into DOPAC via aldehyde dehydrogenase (ALDH2). The biotransformation of DOPAL is critical as previous studies have demonstrated this DA-derived aldehyde to be a reactive electrophile and toxic to dopaminergic cells. Known inhibitors of mitochondrial ALDH2, such as 4-hydroxy-2-nonenal (4HNE) inhibit ALDH2-mediated oxidation of the endogenous neurotoxin DOPAL. 4HNE is one of the resulting products of oxidative stress, thus linking oxidative stress to the uncontrolled production of an endogenous neurotoxin relevant to Parkinsons disease. In early-onset Parkinson disease, there is markedly reduced activities of both monoamine oxidase (MAO) A and B. The amount of DOPAC, which is produced during dopamine oxidation by MAO, is greatly reduced as a result of increased parkin overexpression. Administration of methamphetamine to animals causes loss of DA terminals in the brain and significant decreases in dopamine and dihydroxyphenylacetic acid (DOPAC) in the striatum. Renal dopamine produced in the residual tubular units may be enhanced during a sodium challenge, thus behaving appropriately as a compensatory natriuretic hormone; however, the renal dopaminergic system in patients afflicted with renal parenchymal disorders should address parameters other than free urinary dopamine, namely the urinary excretion of L-DOPA and metabolites. DOPAC is one of the major phenolic acids formed during human microbial fermentation of tea, citrus, and soy flavonoid supplements. DOPAC exhibits a considerable antiproliferative effect in LNCaP prostate cancer and HCT116 colon cancer cells. The antiproliferative activity of DOPAC may be due to its catechol structure. A similar association of the catechol moiety in the B-ring with antiproliferative activity was demonstrated for flavanones (PMID:16956664, 16455660, 8561959, 11369822, 10443478, 16365058). DOPAC can be found in Gram-positive bacteria (PMID:24752840). 3,4-Dihydroxyphenylacetic acid (DOPAC) is a metabolite of the neurotransmitter dopamine. 3,4-Dihydroxyphenylacetic acid is found in many foods, some of which are alaska blueberry, cauliflower, ucuhuba, and fox grape. 3,4-Dihydroxybenzeneacetic acid is the main neuronal metabolite of dopamine.

   

3-Hydroxybenzaldehyde

Benzaldehyde, 3-hydroxy-

C7H6O2 (122.0367776)


3-hydroxybenzaldehyde is a hydroxybenzaldehyde carrying a hydroxy substituent at position 3. 3-Hydroxybenzaldehyde is a natural product found in Rhytidoponera metallica, Marchantia polymorpha, and other organisms with data available. 3-Hydroxybenzaldehyde, also known as 3-hydroxybenzaldehyde or m-hydroxybenzaldehyde, is an organic compound belonging to the class of aromatic aldehydes. Its chemical formula is C7H6O2 and it is characterized by a benzene ring with a hydroxyl group (-OH) and an aldehyde group (-CHO) attached at the meta position on the ring. Biologically, 3-hydroxybenzaldehyde has been found to possess several interesting properties: 1. **Antioxidant Activity**: It exhibits antioxidant properties, which means it can neutralize harmful free radicals in the body. This can be beneficial in reducing oxidative stress, which is associated with various diseases and aging. 2. **Antimicrobial Effects**: 3-Hydroxybenzaldehyde has shown antimicrobial activity against a range of microorganisms, including bacteria and fungi. This makes it a potential candidate for the development of new antimicrobial agents. 3. **Anti-inflammatory Properties**: Some studies have indicated that this compound may have anti-inflammatory effects, which could be useful in the treatment of inflammatory conditions. 4. **Cytotoxicity**: It has been observed to have cytotoxic effects on certain types of cancer cells, suggesting a potential role in cancer therapy. However, more research is needed in this area. 5. **Enzyme Inhibition**: 3-Hydroxybenzaldehyde can inhibit the activity of certain enzymes, which may have implications in the management of conditions where these enzymes play a pathological role. It's important to note that while 3-hydroxybenzaldehyde has these biological properties, its use in practical applications, especially in a medical context, is still largely experimental and requires further research. The compound's effects and safety profile need to be thoroughly evaluated before it can be considered for widespread use in therapeutic or preventive treatments. 3-Hydroxybenzaldehyde. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=100-83-4 (retrieved 2024-08-06) (CAS RN: 100-83-4). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). 3-Hydroxybenzaldehyde?is a precursor compound for phenolic compounds, such as Protocatechualdehyde (HY-N0295). 3-Hydroxybenzaldehyde is a substrate of aldehyde dehydrogenase (ALDH) in rats and humans (ALDH2). 3-Hydroxybenzaldehyde has vasculoprotective effects?in vitro and in vivo[1]. 3-Hydroxybenzaldehyde?is a precursor compound for phenolic compounds, such as Protocatechualdehyde (HY-N0295). 3-Hydroxybenzaldehyde is a substrate of aldehyde dehydrogenase (ALDH) in rats and humans (ALDH2). 3-Hydroxybenzaldehyde has vasculoprotective effects?in vitro and in vivo[1]. 3-Hydroxybenzaldehyde?is a precursor compound for phenolic compounds, such as Protocatechualdehyde (HY-N0295). 3-Hydroxybenzaldehyde is a substrate of aldehyde dehydrogenase (ALDH) in rats and humans (ALDH2). 3-Hydroxybenzaldehyde has vasculoprotective effects?in vitro and in vivo[1].

   

3-methylgallic acid

3,4-Dihydroxy-5-methoxybenzoic acid, AldrichCPR

C8H8O5 (184.0371718)


3-O-methylgallic acid is a member of the class of benzoic acids that is gallic acid in which the phenolic hydroxy group at position 3 is converted into the corresponding methyl ether. It is a member of catechols and a member of benzoic acids. It is functionally related to a gallic acid. It is a conjugate acid of a 3-O-methylgallate. 3,4-Dihydroxy-5-methoxybenzoic acid is a natural product found in Aloe africana, Macaranga tanarius, and other organisms with data available. 3-O-Methylgallic acid (3,4-Dihydroxy-5-methoxybenzoic acid) is an anthocyanin metabolite and has potent antioxidant capacity. 3-O-methylgallic acid inhibits Caco-2 cell proliferation with an IC50 value of 24.1 μM. 3-O-methylgallic acid also induces cell apoptosis and has anti-cancer effects[1][2]. 3-O-Methylgallic acid (3,4-Dihydroxy-5-methoxybenzoic acid) is an anthocyanin metabolite and has potent antioxidant capacity. 3-O-methylgallic acid inhibits Caco-2 cell proliferation with an IC50 value of 24.1 μM. 3-O-methylgallic acid also induces cell apoptosis and has anti-cancer effects[1][2].

   

(-)-Menthone

InChI=1/C10H18O/c1-7(2)9-5-4-8(3)6-10(9)11/h7-9H,4-6H2,1-3H3/t8-,9+/m1/s

C10H18O (154.1357578)


(-)-menthone, also known as P-menthan-3-one or (2s,5r)-2-isopropyl-5-methylcyclohexanone, is a member of the class of compounds known as menthane monoterpenoids. Menthane monoterpenoids are monoterpenoids with a structure based on the o-, m-, or p-menthane backbone. P-menthane consists of the cyclohexane ring with a methyl group and a (2-methyl)-propyl group at the 1 and 4 ring position, respectively. The o- and m- menthanes are much rarer, and presumably arise by alkyl migration of p-menthanes. Thus, (-)-menthone is considered to be an isoprenoid lipid molecule (-)-menthone is practically insoluble (in water) and an extremely weak basic (essentially neutral) compound (based on its pKa). (-)-menthone is a fresh, green, and minty tasting compound and can be found in a number of food items such as lemon, kai-lan, babassu palm, and linden, which makes (-)-menthone a potential biomarker for the consumption of these food products (-)-menthone exists in all eukaryotes, ranging from yeast to humans. (-)-Menthone, also known as (1R,4S)-menthone or L-menthone, belongs to the class of organic compounds known as menthane monoterpenoids. These are monoterpenoids with a structure based on the o-, m-, or p-menthane backbone. P-menthane consists of the cyclohexane ring with a methyl group and a (2-methyl)-propyl group at the 1 and 4 ring position, respectively. The o- and m- menthanes are much rarer, and presumably arise by alkyl migration of p-menthanes. (-)-Menthone is a very hydrophobic molecule, practically insoluble in water, and relatively neutral. Thus, (-)-menthone is considered to be an isoprenoid lipid molecule. (-)-menthone is a menthone that is cyclohexanone substituted by a methyl and an isopropyl group at positions 5 and 2 respectively (the 2S,5R-stereoisomer). It is an enantiomer of a (+)-menthone. Menthone is a natural product found in Xylopia aromatica, Hedeoma multiflora, and other organisms with data available. Menthone is a metabolite found in or produced by Saccharomyces cerevisiae. A menthone that is cyclohexanone substituted by a methyl and an isopropyl group at positions 5 and 2 respectively (the 2S,5R-stereoisomer). (-)-Menthone is a monoterpene component of the essential oil of maturing peppermint. (+)-Neomenthyl-β-d-glucoside is a metabolite of (-)-Menthone[1].Mortality of two biological forms of Anopheles stephensi(larvae) exposed to about 45 ppm (-)-Menthone is 27.67\\\\\\% and 94.92\\\\\\%. [2] (-)-Menthone is a monoterpene component of the essential oil of maturing peppermint. (+)-Neomenthyl-β-d-glucoside is a metabolite of (-)-Menthone[1].Mortality of two biological forms of Anopheles stephensi(larvae) exposed to about 45 ppm (-)-Menthone is 27.67\\\\\% and 94.92\\\\\%. [2] (-)-Menthone is a monoterpene component of the essential oil of maturing peppermint. (+)-Neomenthyl-β-d-glucoside is a metabolite of (-)-Menthone[1].Mortality of two biological forms of Anopheles stephensi(larvae) exposed to about 45 ppm (-)-Menthone is 27.67\\\\% and 94.92\\\\%. [2] (-)-Menthone is a monoterpene component of the essential oil of maturing peppermint. (+)-Neomenthyl-β-d-glucoside is a metabolite of (-)-Menthone[1].Mortality of two biological forms of Anopheles stephensi(larvae) exposed to about 45 ppm (-)-Menthone is 27.67\\\% and 94.92\\\%. [2] Menthone, a monoterpene extracted from plants and Mentha oil with strong antioxidant properties. Menthone is a main volatile component of the essential oil, and has anti-Inflammatory properties in Schistosoma mansoni Infection[1][2]. Menthone, a monoterpene extracted from plants and Mentha oil with strong antioxidant properties. Menthone is a main volatile component of the essential oil, and has anti-Inflammatory properties in Schistosoma mansoni Infection[1][2].

   

flidersiachromone

4H-1-Benzopyran-4-one, 2-(2-phenylethyl)-

C17H14O2 (250.09937440000002)


2-(2-phenylethyl)chromone is a member of the class of chromones that is chromone which is substituted by a 2-phenylethyl group at position 2. It is found in agarwood, a fragrant resinous heartwood obtained from certain trees in the genus Aquilaria. It has a role as a plant metabolite. It is a member of chromones and a member of benzenes. It is functionally related to a chromone. 2-(2-Phenylethyl)chromone is a natural product found in Aquilaria sinensis, Aquilaria malaccensis, and Imperata cylindrica with data available. A member of the class of chromones that is chromone which is substituted by a 2-phenylethyl group at position 2. It is found in agarwood, a fragrant resinous heartwood obtained from certain trees in the genus Aquilaria. 2-(2-Phenylethyl)chromone (Flidersiachromone) is one of 2-(2-phenylethyl)chromones that can be found in Chinese eaglewood from Aquilaria sinensis[1]. 2-(2-Phenylethyl)chromone (Flidersiachromone) is one of 2-(2-phenylethyl)chromones that can be found in Chinese eaglewood from Aquilaria sinensis[1].

   

Bovinocidin

2-(4-Nitrophenylamino)thiazole-4-carboxylicacid

C3H5NO4 (119.02185700000001)


3-nitropropionic acid appears as golden crystals (from chloroform). (NTP, 1992) 3-nitropropanoic acid is a C-nitro compound that is propanoic acid in which one of the methyl hydrogens has been replaced by a nitro group. It has a role as a neurotoxin, an EC 1.3.5.1 [succinate dehydrogenase (quinone)] inhibitor, an antimycobacterial drug and a mycotoxin. It is functionally related to a propionic acid. It is a conjugate acid of a 3-nitropropanoate. It is a tautomer of a 3-aci-nitropropanoic acid. 3-Nitropropionic acid is a natural product found in Indigofera suffruticosa, Coscinoderma, and other organisms with data available. Bovinocidin is isolated from Aspergillus sp. and moulds contaminating foodBovinocidin belongs to the family of Beta Amino Acids and Derivatives. These are amino acids having a (-NH2) group attached to the beta carbon atom. D002491 - Central Nervous System Agents > D000697 - Central Nervous System Stimulants > D003292 - Convulsants Bovinocidin is isolated from Aspergillus sp. and moulds contaminating foo D002317 - Cardiovascular Agents > D000959 - Antihypertensive Agents Isolated from Aspergillus species and moulds contaminating food. 3-Nitropropanoic acid (β-Nitropropionic acid) is an irreversible inhibitor of succinate dehydrogenase. 3-Nitropropanoic acid exhibits potent antimycobacterial activity with a MIC value of 3.3 μM[1][2].

   

(R)-Carvone

2-Cyclohexen-1-one, 2-methyl-5-(1-methylethenyl)-, (theta)-

C10H14O (150.1044594)


Carvone, with R and S isomers, also known as carvol or limonen-6-one, belongs to the class of organic compounds known as menthane monoterpenoids. These are monoterpenoids with a structure based on the o-, m-, or p-menthane backbone. p-Menthane consists of the cyclohexane ring with a methyl group and a (2-methyl)-propyl group at the 1 and 4 ring position, respectively. The o- and m-menthanes are much rarer, and presumably arise by alkyl migration of p-menthanes. Carvone is a neutral compound. Carvone is a naturally occurring organic compound found in many essential oils but is most abundant in the oils from caraway seeds (Carum carvi), spearmint (Mentha spicata), and dill (PMID:27427817). Carvone is a volatile terpenoid found in cannabis plants (PMID:6991645 ). Carvone is occasionally found as a component of biological fluids in normal individuals. Both carvones (R, S) are used in the food and flavor industry (http//doi:10.1016/j.foodchem.2005.01.003). R-carvone is also used in air freshening products and in essential oils used in aromatherapy and alternative medicine. Caraway was used for medicinal purposes by the ancient Romans, but carvone was probably not isolated as a pure compound until Varrentrapp obtained it in 1841 (PMID:5556886 , 2477620 ). Carvone may help in the management of diseases (PMID:30374904) and had been considered as an adjuvant for treatment of cancer patients (PMID:30087792) and patients with epilepsy (PMID:31239862). It also has been successfully used as a biopesticide (PMID:30250476). (-)-carvone is a carvone having (R) configuration. It is an enantiomer of a (+)-carvone. (-)-Carvone is a natural product found in Poiretia latifolia, Licaria triandra, and other organisms with data available. See also: Myrrh (part of); Spearmint Oil (part of). Constituent of spearmint (Mentha crispa) costmary, kuromoji and other oils. Flavouring ingredient A carvone having (R) configuration. (-)-Carvone is an insect neurotoxin and a irreversible acetylcholinesterase (AChE) inhibitor. (-)-Carvone can be used as a bird repellent, inhibits larval growth, decreases pupatation rate, and increases mortality of larvae[1][2]. (-)-Carvone is an insect neurotoxin and a irreversible acetylcholinesterase (AChE) inhibitor. (-)-Carvone can be used as a bird repellent, inhibits larval growth, decreases pupatation rate, and increases mortality of larvae[1][2]. (-)-Carvone is an insect neurotoxin and a irreversible acetylcholinesterase (AChE) inhibitor. (-)-Carvone can be used as a bird repellent, inhibits larval growth, decreases pupatation rate, and increases mortality of larvae[1][2]. (-)-Carvone is an insect neurotoxin and a irreversible acetylcholinesterase (AChE) inhibitor. (-)-Carvone can be used as a bird repellent, inhibits larval growth, decreases pupatation rate, and increases mortality of larvae[1][2].

   

Gentisate aldehyde

2,5-Dihydroxybenzaldehyde polymer

C7H6O3 (138.03169259999999)


Gentisate aldehyde is a substrate of the enzyme aldehyde oxidase 1 [EC:1.2.3.1] in Valine, leucine and isoleucine degradation, Tyrosine metabolism, Tryptophan metabolism, Vitamin B6 metabolism and Nicotinate and nicotinamide metabolism. (KEGG) [HMDB] Gentisate aldehyde is a substrate of the enzyme aldehyde oxidase 1 [EC:1.2.3.1] in Valine, leucine and isoleucine degradation, Tyrosine metabolism, Tryptophan metabolism, Vitamin B6 metabolism and Nicotinate and nicotinamide metabolism. (KEGG). 2,5-Dihydroxybenzaldehyde (Gentisaldehyde) is a naturally occurring antimicrobial that inhibits the growth of Mycobacterium avium subsp. paratuberculosis. 2,5-Dihydroxybenzaldehyde is active against S. aureus strains with a MIC50 of 500 mg/L[1][2].

   

dCMP

{[(2R,3S,5R)-5-(4-amino-2-oxo-1,2-dihydropyrimidin-1-yl)-3-hydroxyoxolan-2-yl]methoxy}phosphonic acid

C9H14N3O7P (307.0569344)


Deoxycytidine monophosphate (dCMP), also known as deoxycytidylic acid or deoxycytidylate in its conjugate acid and conjugate base forms, respectively, is a deoxynucleotide, and one of the four monomers that make up DNA. In a DNA double helix, it will base pair with deoxyguanosine monophosphate. dCMP belongs to the class of organic compounds known as pyrimidine 2-deoxyribonucleoside monophosphates. These are pyrimidine nucleotides with a monophosphate group linked to the ribose moiety lacking a hydroxyl group at position 2. Deficiency of the enzyme deoxycytidine kinase (EC2.7.1.74) is associated with resistance to antiviral and anticancer chemotherapeutic agents, whereas increased enzyme activity is associated with increased activation of these compounds to cytotoxic nucleoside triphosphate derivatives. dCMP exists in all living species, ranging from bacteria to humans. Within humans, dCMP participates in a number of enzymatic reactions. In particular, dCMP can be converted to dCDP by the enzyme UMP-CMP kinase 2. In addition, dCMP can be converted into deoxycytidine, which is catalyzed by the enzyme cytosolic purine 5-nucleotidase. In humans, dCMP is involved in the metabolic disorder called ump synthase deficiency (orotic aciduria). Outside of the human body, dCMP has been detected, but not quantified in several different foods, such as turnips, garlics, agaves, garden onions, and italian sweet red peppers. dCMP is a deoxycytosine nucleotide containing one phosphate group esterified to the deoxyribose moiety in the 2-,3- or 5- positions. Deoxycytidine (dihydrogen phosphate). A deoxycytosine nucleotide containing one phosphate group esterified to the deoxyribose moiety in the 2-,3- or 5- positions. 2'-Deoxycytidine-5'-monophosphoric acid is an endogenous metabolite. 2'-Deoxycytidine-5'-monophosphoric acid is an endogenous metabolite.

   

ortho-Hydroxyphenylacetic acid

ortho-Hydroxyphenylacetic acid

C8H8O3 (152.0473418)


ortho-Hydroxyphenylacetic acid, also known as (o-hydroxyphenyl)acetate or 2-hydroxybenzeneacetic acid, is a member of the class of compounds known as 2(hydroxyphenyl)acetic acids. 2(Hydroxyphenyl)acetic acids are phenylacetic acids that carry a hydroxyl group at the 2-position. ortho-Hydroxyphenylacetic acid is slightly soluble (in water) and a weakly acidic compound (based on its pKa). ortho-Hydroxyphenylacetic acid can be found in a number of food items such as natal plum, lemon verbena, half-highbush blueberry, and parsley, which makes ortho-hydroxyphenylacetic acid a potential biomarker for the consumption of these food products. ortho-Hydroxyphenylacetic acid can be found primarily in blood, feces, and urine. Moreover, ortho-hydroxyphenylacetic acid is found to be associated with phenylketonuria, which is an inborn error of metabolism. ortho-Hydroxyphenylacetic acid is a substrate of the enzyme oxidoreductases (EC 1.14.13.-) in the pathway styrene degradation (KEGG). ortho-Hydroxyphenylacetic acid is also a microbial metabolite. ortho-Hydroxyphenylacetic acid is a substrate of the enzyme oxidoreductases [EC 1.14.13.-] in the pathway styrene degradation. (KEGG) [HMDB]. 2-Hydroxyphenylacetic acid is found in many foods, some of which are rambutan, common oregano, burbot, and wild leek. Acquisition and generation of the data is financially supported in part by CREST/JST. CONFIDENCE standard compound; INTERNAL_ID 155 INTERNAL_ID 155; CONFIDENCE standard compound CONFIDENCE standard compound; INTERNAL_ID 46 COVID info from PDB, Protein Data Bank Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS 2-Hydroxyphenylacetic acid is a potential biomarker for the food products, and found to be associated with phenylketonuria (PKU). 2-Hydroxyphenylacetic acid is a potential biomarker for the food products, and found to be associated with phenylketonuria (PKU).

   

3-Hydroxyisovaleric acid

beta-Hydroxy-beta-methylbutyric acid

C5H10O3 (118.06299100000001)


3-Hydroxyisovaleric acid is a normal human metabolite excreted in the urine. It is a byproduct of the leucine degradation pathway. Production of 3-hydroxyisovaleric acid begins with the conversion of 3-methylcrotonyl-CoA into 3-methylglutaconyl-CoA in the mitochondria by the biotin-dependent enzyme methylcrotonyl-CoA carboxylase. Biotin deficiencies, certain lifestyle habits (smoking), or specific genetic conditions can reduce methylcrotonyl-CoA carboxylase activity. This reduction can lead to a buildup of 3-methylcrotonyl-CoA, which is converted into 3-hydroxyisovaleryl-CoA by the enzyme enoyl-CoA hydratase. Increased concentrations of 3-methylcrotonyl-CoA and 3-hydroxyisovaleryl-CoA can lead to a disruption of the esterified CoA:free CoA ratio, and ultimately to mitochondrial toxicity. Detoxification of these metabolic end products occur via the transfer of the 3-hydroxyisovaleryl moiety to carnitine forming 3-hydroxyisovaleric acid-carnitine or 3HIA-carnitine, which is then transferred across the inner mitochondrial membrane where 3-hydroxyisovaleric acid is released as the free acid (PMID: 21918059). 3-Hydroxyisovaleric acid has been found to be elevated in smokers and in subjects undergoing long-term anticonvulsant therapy with carbamazepine and/or phenytoin. These levels are elevated due to impairment of renal reclamation of biotin. Levels may also be increased from prolonged consumption of raw egg-whites (PMID: 16895887, 9523856, 15447901, 9176832) (OMIM: 210210, 253270, 600529, 253260, 246450, 210200, 238331). When present in sufficiently high levels, 3-hydroxyisovaleric acid can act as an acidogen and a metabotoxin. An acidogen is an acidic compound that induces acidosis, which has multiple adverse effects on many organ systems. A metabotoxin is an endogenously produced metabolite that causes adverse health effects at chronically high levels. Chronically high levels of 3-hydroxyisovaleric acid are associated with at least a dozen inborn errors of metabolism, including 3-hydroxy-3-methylglutaryl-CoA lyase deficiency, 3-methylglutaconic aciduria type I, biotinidase deficiency and isovaleric aciduria, dihydrolipoamide dehydrogenase deficiency, 3-methylcrotonyl-CoA carboxylase 1 deficiency, 3-hydroxy-3-methylglutaryl-CoA lyase deficiency, late-onset multiple carboxylase deficiency, holocarboxylase synthetase deficiency, and 3-methylcrotonyl-CoA carboxylase 2 deficiency. 3-Hydroxyisovaleric acid is an organic acid. Abnormally high levels of organic acids in the blood (organic acidemia), urine (organic aciduria), the brain, and other tissues lead to general metabolic acidosis. Acidosis typically occurs when arterial pH falls below 7.35. In infants with acidosis, the initial symptoms include poor feeding, vomiting, loss of appetite, weak muscle tone (hypotonia), and lack of energy (lethargy). These can progress to heart, liver, and kidney abnormalities, seizures, coma, and possibly death. These are also the characteristic symptoms of the untreated IEMs mentioned above. Many affected children with organic acidemias experience intellectual disability or delayed development. In adults, acidosis or acidemia is characterized by headaches, confusion, feeling tired, tremors, sleepiness, and seizures. 3-Hydroxyisovaleric acid is a normal human metabolite excreted in the urine. Elevated levels of this compound are found in several inherited disorders such as Dihydrolipoamide dehydrogenase Deficiency, 3-Methylcrotonyl-CoA carboxylase 1 deficiency, 3-Hydroxy-3-methylglutaryl-CoA lyase deficiency (3-hydroxy-3-methylglutaryl -CoA lyase Deficiency, Biotinidase deficiency multiple carboxylase deficiency late-onset , Late onset multiple carboxylase deficiency, HolMcarboxylase synthetase deficiency, 3-Methylcrotonyl-CoA carboxylase 2 deficiency. 3-Hydroxyisovaleric acid is also elevated in smokers, in subjects undergoing long-term anticonvulsant therapy with carbamazepine and/or phenytoin. These levels are elevated due to impairment of renal reclamation of biotin. Levels may also be increased from prolonged consumption of raw egg-whites (PMID: 16895887, 9523856, 15447901, 9176832)(OMIM: 210210, 253270, 600529, 253260, 246450, 210200, 238331) [HMDB] 3-Hydroxyisovaleric acid is a normal endogenous metabolite excreted in the urine. The urinary excretion of 3-hydroxyisovaleric acid is early and sensitive indicator of biotin deficiency[1][2]. 3-Hydroxyisovaleric acid is a normal endogenous metabolite excreted in the urine. The urinary excretion of 3-hydroxyisovaleric acid is early and sensitive indicator of biotin deficiency[1][2].

   

3-Hydroxyanthranilic acid

2-Amino-3-hydroxy-benzoic acid

C7H7NO3 (153.0425912)


3-Hydroxyanthranilic acid, also known as 2-amino-3-hydroxy-benzoate or 3-ohaa, belongs to the class of organic compounds known as hydroxybenzoic acid derivatives. Hydroxybenzoic acid derivatives are compounds containing a hydroxybenzoic acid (or a derivative), which is a benzene ring bearing a carboxyl and a hydroxyl groups. 3-Hydroxyanthranilic acid is a drug. 3-Hydroxyanthranilic acid exists in all living species, ranging from bacteria to humans. Within humans, 3-hydroxyanthranilic acid participates in a number of enzymatic reactions. In particular, 3-hydroxyanthranilic acid and L-alanine can be biosynthesized from L-3-hydroxykynurenine through the action of the enzyme kynureninase. In addition, 3-hydroxyanthranilic acid can be converted into cinnavalininate through the action of the enzyme catalase. 3-Hydroxyanthranilic acid is an intermediate in the metabolism of tryptophan. In humans, 3-hydroxyanthranilic acid is involved in tryptophan metabolism. Outside of the human body, 3-hydroxyanthranilic acid has been detected, but not quantified in brassicas. This could make 3-hydroxyanthranilic acid a potential biomarker for the consumption of these foods. It is new antioxidant isolated from methanol extract of tempeh. It is effective in preventing autoxidation of soybean oil and powder, while antioxidant 6,7,4-trihydroxyisoflavone is not. D000975 - Antioxidants > D016166 - Free Radical Scavengers [Raw Data] CBA14_3-OH-anthranili_pos_30eV_1-6_01_808.txt [Raw Data] CBA14_3-OH-anthranili_neg_40eV_1-6_01_832.txt [Raw Data] CBA14_3-OH-anthranili_pos_40eV_1-6_01_809.txt [Raw Data] CBA14_3-OH-anthranili_neg_20eV_1-6_01_830.txt [Raw Data] CBA14_3-OH-anthranili_neg_10eV_1-6_01_829.txt [Raw Data] CBA14_3-OH-anthranili_pos_10eV_1-6_01_806.txt [Raw Data] CBA14_3-OH-anthranili_pos_20eV_1-6_01_807.txt [Raw Data] CBA14_3-OH-anthranili_neg_30eV_1-6_01_831.txt D020011 - Protective Agents > D000975 - Antioxidants Isolated from Brassica oleracea (cauliflower) 3-Hydroxyanthranilic acid is a tryptophan metabolite in the kynurenine pathway.

   

3-Hydroxyphenylacetic acid

(3-Hydroxy-phenyl)-acetic acid

C8H8O3 (152.0473418)


3-Hydroxyphenylacetic acid is a rutin metabolite and an antioxidant. It has a protective biological activity in human. It is a substrate of enzyme 4-hydroxyphenylacetate 3-monooxygenase [EC 1.14.13.3] in the pathway tyrosine metabolism (KEGG, PMID 155437). 3-Hydroxyphenylacetic acid is found to be associated with phenylketonuria, which is an inborn error of metabolism. It is also a marker of gut Clostridium species. Higher levels are associated with higher levels of Clostridia (PMID: 27123458). 3-Hydroxyphenylacetic acid can also be found in Klebsiella (PMID: 1851804). 3-Hydroxyphenylacetic acid is a rutin metabolite and an antioxidant. It has a protective biological activity in human. It is a substrate of enzyme 4-hydroxyphenylacetate 3-monooxygenase [EC 1.14.13.3] in the pathway tyrosine metabolism. (KEGG, PMID 155437) [HMDB] CONFIDENCE standard compound; INTERNAL_ID 156 CONFIDENCE standard compound; INTERNAL_ID 45 COVID info from PDB, Protein Data Bank Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS 3-Hydroxyphenylacetic acid is an endogenous metabolite.

   

3-Hydroxypicolinic acid

3-Hydroxypyrrolidine-2carboxylic acid

C6H5NO3 (139.02694200000002)


3-Hydroxy picolinic acid is a picolinic acid derivative and is a member of the pyridine family. Picolinic acid is an isomer of nicotinic acid, which has the carboxyl side chain at the 3-position. It is a catabolite of the amino acid tryptophan. [HMDB] 3-Hydroxy picolinic acid is a picolinic acid derivative and is a member of the pyridine family. Picolinic acid is an isomer of nicotinic acid, which has the carboxyl side chain at the 3-position. It is a catabolite of the amino acid tryptophan. COVID info from PDB, Protein Data Bank Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS 3-Hydroxypicolinic acid is a picolinic acid derivative, and belongs to the pyridine family.

   

1-Methylhistidine

(2S)-2-Amino-3-(1-methyl-1H-imidazol-4-yl)propanoic acid

C7H11N3O2 (169.0851226)


1-Methylhistidine, also known as 1-MHis or 1MH, belongs to the class of organic compounds known as histidine and derivatives. 1MH is also classified as a methylamino acid. Methylamino acids are primarily proteogenic amino acids (found in proteins) which have been methylated (in situ) on their side chains by various methyltransferase enzymes. Histidine can be methylated at either the N1 or N3 position of its imidazole ring, yielding the isomers 1-methylhistidine (1MH; also referred to as pi-methylhistidine) or 3-methylhistidine (3MH; tau-methylhistidine), respectively. There is considerable confusion with regard to the nomenclature of the methylated nitrogen atoms on the imidazole ring of histidine and other histidine-containing peptides such as anserine. In particular, older literature (mostly prior to the year 2000) designated anserine (Npi methylated) as beta-alanyl-N1-methyl-histidine, whereas according to standard IUPAC nomenclature, anserine is correctly named as beta-alanyl-N3-methyl-histidine. As a result, many papers published prior to the year 2000 incorrectly identified 1MH as a specific marker for dietary consumption or various pathophysiological effects when they really were referring to 3MH (PMID: 24137022). Recent discoveries have shown that 1MH is produced in essentially all mammals (and other vertebrates) via the enzyme known as METTL9 (PMID: 33563959). METTL9 is a broad-specificity methyltransferase that mediates the formation of the majority of 1MH present in mammalian proteomes. METTL9-catalyzed methylation requires a His-x-His (HxH) motif, where "x" is a small amino acid. This HxH motif is found in a number of abundant mammalian proteins such as ARMC6, S100A9, and NDUFB3 (PMID: 33563959). Because of its abundance in many muscle-related proteins, 1MH has been found to be a good biomarker for the consumption of meat (PMID: 21527577). Dietary studies have shown that poultry consumption (p-trend = 0.0006) and chicken consumption (p-trend = 0.0003) are associated with increased levels of 1MH in human plasma (PMID: 30018457). The consumption of fish, especially salmon and cod, has also been shown to increase the levels of 1MH in serum and urine (PMID: 31401679). As a general rule, urinary 1MH is associated with white meat intake (p< 0.001), whereas urinary 3MH is associated with red meat intake (p< 0.001) (PMID: 34091671). 1-Methyl-L-histidine is an objective indicator of meat ingestion and exogenous 3-methylhistidine (3MH) intake. 1-Methyl-L-histidine is an objective indicator of meat ingestion and exogenous 3-methylhistidine (3MH) intake. 3-Methyl-L-histidine is a biomarker for meat consumption, especially chicken. It is also a biomarker for the consumption of soy products.

   

4-Acetamidobutanoate

N-Acetyl-gamma-amino-N-butyric acid

C6H11NO3 (145.0738896)


4-Acetamidobutanoic acid, also known as 4-acetamidobutanoate or N-acetyl-4-aminobutyric acid, is a member of the class of compounds known as gamma amino acids and derivatives. These compounds are amino acids having an -NH2 group attached to the gamma carbon atom. 4-Acetamidobutanoic acid is soluble in water. 4-Acetamidobutanoic acid can be found in a number of food items such as Rubus species (blackberry, raspberry), cassava, pepper (Capsicum frutescens), and napa cabbage, which makes 4-acetamidobutanoic acid a potential biomarker for the consumption of these food products. 4-Acetamidobutanoic acid can be found in blood, feces, and urine, as well as in human prostate tissue. 4-Acetamidobutanoic acid exists in all eukaryotes, ranging from yeast to humans. 4-Acetamidobutanoic acid is a GABA derivative, a product of the urea cycle and the metabolism of amino groups, and the product of NAD-linked aldehyde dehydrogenase (EC 1.2.1.3) (KEGG). 4-Acetamidobutanoic acid is a GABA derivative, product of the Urea cycle and metabolism of amino groups, the product of NAD-linked aldehyde dehydrogenase (EC 1.2.1.3) (KEGG) [HMDB]. 4-Acetamidobutanoic acid is found in many foods, some of which are custard apple, japanese walnut, shiitake, and oxheart cabbage. 4-Acetamidobutanoic acid (N-acetyl GABA), the main metabolite of GABA, exhibits antioxidant and antibacterial activities[1]. 4-Acetamidobutanoic acid (N-acetyl GABA), the main metabolite of GABA, exhibits antioxidant and antibacterial activities[1]. 4-Acetamidobutanoic acid (N-acetyl GABA), the main metabolite of GABA, exhibits antioxidant and antibacterial activities[1].

   

4-Aminobenzoic acid

4-aminobenzoic acid

C7H7NO2 (137.0476762)


p-Aminobenzoic acid, also known as 4-aminobenzoic acid or PABA, is an organic compound with molecular formula C7H7NO2. PABA is a white crystalline substance that is only slightly soluble in water. It consists of a benzene ring substituted with an amino group and a carboxylic acid. PABA is an essential nutrient for some bacteria and is sometimes called vitamin Bx. However, PABA is not essential for humans and it varies in its activity from other B vitamins. PABA is sometimes marketed as an essential nutrient under the premise that it can stimulate intestinal bacteria. Certain bacteria in the human intestinal tract such as E. coli generate PABA from chorismate. Humans lack the enzymes to convert PABA into folate, and therefore require folate from dietary sources such as green leafy vegetables. Although some intestinal bacteria can synthesize folate from PABA and some E. coli can synthesize folate this requires six enzymatic activities in folate synthesis which are not all done in the same bacteria. PABA used to be a common sunscreen agent until it was found to also be a sensitizer. The potassium salt of PABA is used therapeutically in fibrotic skin disorders. PABA can also be found in Acetobacter (DOI: 10.3181/00379727-52-14147). CONFIDENCE standard compound; INTERNAL_ID 1139; DATASET 20200303_ENTACT_RP_MIX499; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2913; ORIGINAL_PRECURSOR_SCAN_NO 2910 CONFIDENCE standard compound; INTERNAL_ID 1139; DATASET 20200303_ENTACT_RP_MIX499; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2878; ORIGINAL_PRECURSOR_SCAN_NO 2876 CONFIDENCE standard compound; INTERNAL_ID 1139; DATASET 20200303_ENTACT_RP_MIX499; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3022; ORIGINAL_PRECURSOR_SCAN_NO 3020 CONFIDENCE standard compound; INTERNAL_ID 1139; DATASET 20200303_ENTACT_RP_MIX499; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 2902; ORIGINAL_PRECURSOR_SCAN_NO 2899 CONFIDENCE standard compound; INTERNAL_ID 1139; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3034; ORIGINAL_PRECURSOR_SCAN_NO 3032 CONFIDENCE standard compound; INTERNAL_ID 1139; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3039; ORIGINAL_PRECURSOR_SCAN_NO 3037 D - Dermatologicals > D02 - Emollients and protectives > D02B - Protectives against uv-radiation > D02BA - Protectives against uv-radiation for topical use Acquisition and generation of the data is financially supported in part by CREST/JST. Listed in the EAFUS Food Additive Database (Jan. 2001) but with no reported use KEIO_ID A043 4-Aminobenzoic acid is an intermediate in the synthesis of folic acid by bacteria, plants and fungi. 4-Aminobenzoic acid is an intermediate in the synthesis of folic acid by bacteria, plants and fungi.

   

3-Hydroxybenzoic acid

3-Hydroxybenzoic acid, copper (2+) (1:1) salt

C7H6O3 (138.03169259999999)


3-Hydroxybenzoic acid, also known as 3-hydroxybenzoate or 3-carboxyphenol, belongs to the class of organic compounds known as hydroxybenzoic acid derivatives. Hydroxybenzoic acid derivatives are compounds containing a hydroxybenzoic acid (or a derivative), which is a benzene ring bearing a carboxyl and a hydroxyl groups. 3-Hydroxybenzoic acid exists in all living organisms, ranging from bacteria to humans. Outside of the human body, 3-hydroxybenzoic acid is found, on average, in the highest concentration in american cranberries and beers. 3-hydroxybenzoic acid has also been detected, but not quantified in a few different foods, such as bilberries, citrus, and corns. As well, 3-Hydroxybenzoic Acid can be found in the pineapple fruit. It can also be formed by a Pseudomonas species from 3-Chlorobenzoic acid. 3-Hydroxybenzoic acid is a monohydroxybenzoic acid. 3-Hydroxybenzoic acid can be obtained by the alkali fusion of 3-sulfobenzoic acid between 210-220 °C. 3-Hydroxybenzoic acid is a component of castoreum, the exudate from the castor sacs of the mature North American beaver (Castor canadensis) and the European beaver (Castor fiber), used in perfumery. Present in fruits. Isolated from Citrus paradisi (grapefruit) CONFIDENCE standard compound; ML_ID 13 KEIO_ID H019 3-Hydroxybenzoic acid is an endogenous metabolite. 3-Hydroxybenzoic acid is an endogenous metabolite.

   

10-Hydroxydecanoic acid

10-hydroxy-decanoic acid

C10H20O3 (188.14123700000002)


10-hydroxycapric acid is a 10-carbon, omega-hydroxy fatty acid, shown to be the preferred hydroxylation product (together with the 9-OH isomer) of capric acid in biosystems, and used as a standard in lipid assays; reported to have cytotoxic effects. It is a straight-chain saturated fatty acid and an omega-hydroxy-medium-chain fatty acid. It is functionally related to a decanoic acid. It is a conjugate acid of a 10-hydroxycaprate. 10-Hydroxydecanoic acid, also known as 10-OH-capric acid or 10-OH-caprate, belongs to the class of organic compounds known as medium-chain hydroxy acids and derivatives. These are hydroxy acids with a 6 to 12 carbon atoms long side chain. Based on a literature review a significant number of articles have been published on 10-Hydroxydecanoic acid. This compound has been identified in human blood as reported by (PMID: 31557052 ). 10-hydroxydecanoic acid is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically 10-Hydroxydecanoic acid is part of the human exposome. The exposome can be defined as the collection of all the exposures of an individual in a lifetime and how those exposures relate to health. An individual's exposure begins before birth and includes insults from environmental and occupational sources. 10-Hydroxydecanoic acid (NSC 15139) is a saturated fatty acid of 10-hydroxy-trans-2-decenoic acid from royal jelly, with anti-inflammatory activity[1].

   

12-Hydroxydodecanoic acid

ω-Hydroxydodecanoic acid

C12H24O3 (216.1725354)


12-hydroxydodecanoic acid is the substrate of the human glutathione-dependent formaldehyde dehydrogenase (EC1.1.1.1). The enzyme that catalyzes the conversion of alcohols to aldehydes is a zinc-containing dimeric enzyme responsible for the oxidation of long-chain alcohols and omega-hydroxy fatty acids. (OMIM). The human glutathione-dependent formaldehyde dehydrogenase is unique among the structurally studied members of the alcohol dehydrogenase family in that it follows a random bi kinetic mechanism forming a binary complex, and a ternary complex with NAD+. (PMID 12196016). 12-hydroxydodecanoic acid is the substrate of the human glutathione-dependent formaldehyde dehydrogenase (EC1.1.1.1) . The enzyme that catalyzes the conversion of alcohols to aldehydes is a zinc-containing dimeric enzyme responsible for the oxidation of long-chain alcohols and omega-hydroxy fatty acids. (OMIM) 12-Hydroxydodecanoic acid is an endogenous metabolite.

   

L-3-Phenyllactic acid

(2R)-2-hydroxy-3-phenylpropanoic acid

C9H10O3 (166.062991)


L-3-Phenyllactic acid (or PLA) is a chiral aromatic compound involved in phenylalanine metabolism. It is likely produced from phenylpyruvate via the action of lactate dehydrogenase. The D-form of this organic acid is typically derived from bacterial sources while the L-form is almost certainly endogenous. Levels of phenyllactate are normally very low in blood or urine. High levels of PLA in the urine or blood are often indicative of phenylketonuria (PKU) and hyperphenylalaninemia (HPA). PKU is due to lack of the enzyme phenylalanine hydroxylase (PAH), so that phenylalanine is converted not to tyrosine but to phenylpyruvic acid (a precursor of phenylactate). In particular, excessive phenylalanine is typically metabolized into phenylketones through, a transaminase pathway route involving glutamate. Metabolites of this transamination reaction include phenylacetate, phenylpyruvate and phenethylamine. In persons with PKU, dietary phenylalanine either accumulates in the body or some of it is converted to phenylpyruvic acid and then to phenyllactate through the action of lactate dehydrogenase. Individuals with PKU tend to excrete large quantities of phenylpyruvate, phenylacetate and phenyllactate, along with phenylalanine, in their urine. If untreated, mental retardation effects and microcephaly are evident by the first year along with other symptoms which include: unusual irritability, epileptic seizures and skin lesions. Hyperactivity, EEG abnormalities and seizures, and severe learning disabilities are major clinical problems later in life. A "musty or mousy" odor of skin, hair, sweat and urine (due to phenylacetate accumulation); and a tendency to hypopigmentation and eczema are also observed. The neural-development effects of PKU are primarily due to the disruption of neurotransmitter synthesis. In particular, phenylalanine is a large, neutral amino acid which moves across the blood-brain barrier (BBB) via the large neutral amino acid transporter (LNAAT). Excessive phenylalanine in the blood saturates the transporter. Thus, excessive levels of phenylalanine significantly decrease the levels of other LNAAs in the brain. But since these amino acids are required for protein and neurotransmitter synthesis, phenylalanine accumulation disrupts brain development, leading to mental retardation. [HMDB] L-3-Phenyllactic acid (or PLA) is a chiral aromatic compound involved in phenylalanine metabolism. It is likely produced from phenylpyruvate via the action of lactate dehydrogenase. The D-form of this organic acid is typically derived from bacterial sources while the L-form is almost certainly endogenous. Levels of phenyllactate are normally very low in blood or urine. High levels of PLA in the urine or blood are often indicative of phenylketonuria (PKU) and hyperphenylalaninemia (HPA). PKU is due to lack of the enzyme phenylalanine hydroxylase (PAH), so that phenylalanine is converted not to tyrosine but to phenylpyruvic acid (a precursor of phenylactate). In particular, excessive phenylalanine is typically metabolized into phenylketones through, a transaminase pathway route involving glutamate. Metabolites of this transamination reaction include phenylacetate, phenylpyruvate and phenethylamine. In persons with PKU, dietary phenylalanine either accumulates in the body or some of it is converted to phenylpyruvic acid and then to phenyllactate through the action of lactate dehydrogenase. Individuals with PKU tend to excrete large quantities of phenylpyruvate, phenylacetate and phenyllactate, along with phenylalanine, in their urine. If untreated, mental retardation effects and microcephaly are evident by the first year along with other symptoms which include: unusual irritability, epileptic seizures and skin lesions. Hyperactivity, EEG abnormalities and seizures, and severe learning disabilities are major clinical problems later in life. A "musty or mousy" odor of skin, hair, sweat and urine (due to phenylacetate accumulation); and a tendency to hypopigmentation and eczema are also observed. The neural-development effects of PKU are primarily due to the disruption of neurotransmitter synthesis. In particular, phenylalanine is a large, neutral amino acid which moves across the blood-brain barrier (BBB) via the large neutral amino acid transporter (LNAAT). Excessive phenylalanine in the blood saturates the transporter. Thus, excessive levels of phenylalanine significantly decrease the levels of other LNAAs in the brain. But since these amino acids are required for protein and neurotransmitter synthesis, phenylalanine accumulation disrupts brain development, leading to mental retardation. (±)-3-Phenyllactic acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=828-01-3 (retrieved 2024-07-04) (CAS RN: 828-01-3). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). (S)-2-Hydroxy-3-phenylpropanoic acid is a product of phenylalanine catabolism. An elevated level of phenyllactic acid is found in body fluids of patients with or phenylketonuria. D-?(+)?-?Phenyllactic acid is an anti-bacterial agent, excreted by Geotrichum candidum, inhibits a range of Gram-positive from humans and foodstuffs and Gram-negative bacteria found in humans[1]. DL-3-Phenyllactic acid is a broad-spectrum antimicrobial compound. DL-3-Phenyllactic acid is a broad-spectrum antimicrobial compound.

   

cis-Aconitic acid

(1Z)-prop-1-ene-1,2,3-tricarboxylic acid

C6H6O6 (174.01643760000002)


cis-Aconitic acid is an intermediate in the tricarboxylic acid cycle produced by the dehydration of citric acid. The enzyme aconitase (aconitate hydratase; EC 4.2.1.3) catalyses the stereo-specific isomerization of citrate to isocitrate via cis-aconitate in the tricarboxylic acid cycle. Present in apple fruits, maple syrup and passion fruit juice cis-Aconitic acid, also known as (Z)-aconitic acid, plays several important biological roles: Intermediate in the Citric Acid Cycle: cis-Aconitic acid is an intermediate in the tricarboxylic acid (TCA) cycle, also known as the Krebs cycle or citric acid cycle. It is formed from citrate by the enzyme aconitase and is rapidly converted into isocitrate, another key intermediate in the cycle. The TCA cycle is central to cellular respiration, generating energy-rich molecules like NADH and FADH2. Regulation of Aconitase Activity: The conversion of citrate to cis-aconitate and then to isocitrate by aconitase is an important regulatory step in the TCA cycle. This conversion helps in maintaining the balance of the cycle and is influenced by factors like the energy status of the cell. Role in Cholesterol Synthesis: cis-Aconitic acid is also involved in the synthesis of cholesterol. It serves as a precursor for the synthesis of mevalonate, a key intermediate in the cholesterol biosynthesis pathway. Potential Involvement in Disease: Altered metabolism or accumulation of cis-aconitic acid has been associated with certain diseases, including neurodegenerative disorders and cancer. Its role in these conditions is an area of ongoing research. Plant Growth and Development: In plants, cis-aconitic acid has been found to play a role in growth and development, including seed germination and leaf senescence. In summary, cis-aconitic acid is a crucial intermediate in the TCA cycle, impacting energy production and various metabolic pathways in cells. Its role extends to cholesterol synthesis and potentially to various disease processes, highlighting its importance in cellular metabolism and physiology. cis-Aconitic acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=585-84-2 (retrieved 2024-07-01) (CAS RN: 585-84-2). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). (Z)-Aconitic acid (cis-Aconitic acid) is the cis-isomer of Aconitic acid. (Z)-Aconitic acid (cis-Aconitic acid) is an intermediate in the tricarboxylic acid cycle produced by the dehydration of citric acid. (Z)-Aconitic acid (cis-Aconitic acid) is the cis-isomer of Aconitic acid. (Z)-Aconitic acid (cis-Aconitic acid) is an intermediate in the tricarboxylic acid cycle produced by the dehydration of citric acid.

   

DL-Homocystine

2-amino-4-[(3-amino-3-carboxypropyl)disulfanyl]butanoic acid

C8H16N2O4S2 (268.0551456)


Homocystine is the oxidized form of homocysteine. Homocystine is a dipeptide consisting of two homocysteine molecules joined by a disulfide bond. Homocysteine is a sulfur-containing amino acid that arises during methionine metabolism. Homocystine occurs only transiently before being reduced to homocysteine and converted to the harmless cystathionine via a vitamin B6-dependent enzyme. Homocystine and homocysteine-cysteine mixed disulfides account for >98\\\\\% of total homocysteine in plasma from healthy individuals (PMID 11592966). Homocystine has been shown to stereospecifically induce endothelial nitric oxide synthase-dependent lipid peroxidation in endothelial cells, thereby inducing a vascular cell type-specific oxidative stress. This vascular stress is associated with atherothrombotic cardiovascular disease (PMID: 14980706). High levels of homocysteine (and homocysteine) can be found in individuals suffering from homocystinura due to cystathionine synthase deficiency (PMID: 4685596) Homocystine is the double-bonded form of homocysteine, but it occurs only transiently before being converted to the harmless cystathionine via a vitamin B6-dependent enzyme. Acquisition and generation of the data is financially supported in part by CREST/JST. KEIO_ID H041 4,4'-Disulfanediylbis(2-aminobutanoic acid) is an endogenous metabolite. DL-Homocystine is the double-bonded form of homocysteine and homocysteine is recognized as an important substance in the pathogenesis and pathophysiology of schizophrenia. L-Homocystine is the oxidized member of the L-homocysteine. Homocysteine is a pro-thrombotic factor, vasodilation impairing agent, pro-inflammatory factor and endoplasmatic reticulum-stress inducer used to study cardiovascular disease mechanisms.

   

L-Kynurenine

(AlphaS)-alpha,2-diamino-3-hydroxy-gamma-oxo-benzenebutanoic acid

C10H12N2O3 (208.0847882)


Kynurenine is a metabolite of the amino acid tryptophan used in the production of niacin. L-Kynurenine is a central compound of the tryptophan metabolism pathway since it can change into the neuroprotective agent kynurenic acid or to the neurotoxic agent quinolinic acid. The break-up of these endogenous compounds balance can be observable in many disorders such as stroke, epilepsy, multiple sclerosis, and amyotrophic lateral sclerosis. It can also occur in neurodegenerative disorders such as Parkinsons disease, Huntingtons, and Alzheimers disease; and in mental disorders such as schizophrenia and depression. Kynurenine is a metabolite of the amino acid tryptophan used in the production of niacin. [Raw Data] CBA10_Kynurenine_pos_10eV_1-2_01_666.txt [Raw Data] CBA10_Kynurenine_pos_30eV_1-2_01_668.txt [Raw Data] CBA10_Kynurenine_pos_40eV_1-2_01_669.txt [Raw Data] CBA10_Kynurenine_pos_20eV_1-2_01_667.txt [Raw Data] CBA10_Kynurenine_pos_50eV_1-2_01_670.txt L-Kynurenine. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=2922-83-0 (retrieved 2024-07-01) (CAS RN: 2922-83-0). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). 2-Amino-4-(2-aminophenyl)-4-oxobutanoic acid is an endogenous metabolite. L-Kynurenine is a metabolite of the amino acid L-tryptophan. L-Kynurenine is an aryl hydrocarbon receptor agonist.

   

Diaminopimelic acid

( (R*,s*)-2,6-diamino-heptanedioic acid

C7H14N2O4 (190.0953524)


Diaminopimelic acid or DAPA is a lysine-like amino acid derivative that is a key component of the bacterial cell wall. DAPA is incorporated or integrated into peptidoglycan of gram negative bacteria and is the attachment point for Brauns lipoprotein (BLP or Murein Lipoprotein). BLP is found in gram-negative cell walls and is one of the most abundant membrane proteins. BLP is bound at its C-terminal end (a lysine) by a covalent bond to the peptidoglycan layer (specifically to diaminopimelic acid molecules) and is embedded in the outer membrane by its hydrophobic head (a cysteine with lipids attached). BLP tightly links the two layers and provides structural integrity to the bacterial outer membrane. Diaminopimelic acid can be found in human urine or feces due to the lysis or enzymatic breakdown of gram negative gut microbes. Acquisition and generation of the data is financially supported in part by CREST/JST. 2,6-Diaminoheptanedioic acid is an endogenous metabolite.

   

Deoxyadenosine monophosphate

{[(2R,3S,5R)-5-(6-amino-9H-purin-9-yl)-3-hydroxyoxolan-2-yl]methoxy}phosphonic acid

C10H14N5O6P (331.06816740000005)


Deoxyadenosine monophosphate (dAMP), also known as deoxyadenylic acid or deoxyadenylate in its conjugate acid and conjugate base forms, respectively, is a derivative of the common nucleic acid AMP, or adenosine monophosphate, in which the -OH (hydroxyl) group on the 2 carbon on the nucleotides pentose has been reduced to just a hydrogen atom (hence the "deoxy-" part of the name). Additionally, the monophosphate of the name indicates that two of the phosphoryl groups of GTP have been removed, most likely by hydrolysis. It is a monomer used in DNA. Adenosine is a nucleoside comprised of adenine attached to a ribose (ribofuranose) moiety via a -N9-glycosidic bond. Acquisition and generation of the data is financially supported in part by CREST/JST. COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS 2′-Deoxyadenosine 5′-monophosphate, a nucleic acid AMP derivative, is a deoxyribonucleotide found in DNA. 2′-Deoxyadenosine 5′-monophosphate can be used to study adenosine-based interactions during DNA synthesis and DNA damage[1]. 2′-Deoxyadenosine 5′-monophosphate, a nucleic acid AMP derivative, is a deoxyribonucleotide found in DNA. 2′-Deoxyadenosine 5′-monophosphate can be used to study adenosine-based interactions during DNA synthesis and DNA damage[1].

   

2,6-Dihydroxybenzoic acid

2,6-Dihydroxybenzoic acid (acd/name 4.0)

C7H6O4 (154.0266076)


2,6-dihydroxybenzoic acid, also known as gamma-resorcylic acid or 6-hydroxysalicylic acid, is a member of the class of compounds known as salicylic acids. Salicylic acids are ortho-hydroxylated benzoic acids. 2,6-dihydroxybenzoic acid is slightly soluble (in water) and a moderately acidic compound (based on its pKa). 2,6-dihydroxybenzoic acid can be found in beer and olive, which makes 2,6-dihydroxybenzoic acid a potential biomarker for the consumption of these food products. 2,6-dihydroxybenzoic acid can be found primarily in blood and urine. 2,6-Dihydroxybenzoic acid (γ-resorcylic acid) is a dihydroxybenzoic acid. It is a very strong acid due to its intramolecular hydrogen bonding . 2,6-dihydroxybenzoic acid is a secondary metabolite of salicylic acid which has been hydrolyzed by liver enzymes during phase I metabolism. 2,6-Dihydroxybenzoic acid is a secondary metabolite of salicylic acid which has been hydrolyzed by liver enzymes during phase I metabolism. 2,6-Dihydroxybenzoic acid is a secondary metabolite of salicylic acid which has been hydrolyzed by liver enzymes during phase I metabolism.

   

4-Hydroxyphenylpyruvic acid

4-Hydroxy-alpha-oxobenzenepropanoic acid

C9H8O4 (180.0422568)


3-(4-hydroxy-phenyl)pyruvic acid, also known as 4-hydroxy a-oxobenzenepropanoate or 3-(p-hydroxyphenyl)-2-oxopropanoate, belongs to phenylpyruvic acid derivatives class of compounds. Those are compounds containing a phenylpyruvic acid moiety, which consists of a phenyl group substituted at the second position by an pyruvic acid. 3-(4-hydroxy-phenyl)pyruvic acid is slightly soluble (in water) and a moderately acidic compound (based on its pKa). 3-(4-hydroxy-phenyl)pyruvic acid can be synthesized from pyruvic acid. 3-(4-hydroxy-phenyl)pyruvic acid can also be synthesized into 4-hydroxyphenylpyruvic acid oxime. 3-(4-hydroxy-phenyl)pyruvic acid can be found in a number of food items such as garden onion (variety), rose hip, sourdough, and horseradish tree, which makes 3-(4-hydroxy-phenyl)pyruvic acid a potential biomarker for the consumption of these food products. 3-(4-hydroxy-phenyl)pyruvic acid can be found primarily in blood and urine, as well as in human prostate tissue. 3-(4-hydroxy-phenyl)pyruvic acid exists in all eukaryotes, ranging from yeast to humans. In humans, 3-(4-hydroxy-phenyl)pyruvic acid is involved in few metabolic pathways, which include disulfiram action pathway, phenylalanine and tyrosine metabolism, and tyrosine metabolism. 3-(4-hydroxy-phenyl)pyruvic acid is also involved in several metabolic disorders, some of which include tyrosinemia type I, phenylketonuria, tyrosinemia, transient, of the newborn, and alkaptonuria. Moreover, 3-(4-hydroxy-phenyl)pyruvic acid is found to be associated with hawkinsinuria and phenylketonuria. 4-Hydroxyphenylpyruvic acid (4-HPPA) is a keto acid that is involved in the tyrosine catabolism pathway. It is a product of the enzyme (R)-4-hydroxyphenyllactate dehydrogenase (EC 1.1.1.222) and is formed during tyrosine metabolism. The conversion from tyrosine to 4-HPPA is catalyzed by tyrosine aminotransferase. Additionally, 4-HPPA can be converted to homogentisic acid which is one of the precursors to ochronotic pigment. The enzyme 4-hydroxyphenylpyruvic acid dioxygenase (HPD) catalyzes the reaction that converts 4-hydroxyphenylpyruvic acid to homogentisic acid. A deficiency in the catalytic activity of HPD is known to lead to tyrosinemia type III, an autosomal recessive disorder characterized by elevated levels of blood tyrosine and massive excretion of tyrosine derivatives into urine. It has been shown that hawkinsinuria, an autosomal dominant disorder characterized by the excretion of hawkinsin, may also be a result of HPD deficiency (PMID: 11073718). Moreover, 4-hydroxyphenylpyruvic acid is also found to be associated in phenylketonuria, which is also an inborn error of metabolism. There are two isomers of HPPA, specifically 4HPPA and 3HPPA, of which 4HPPA is the most common. 4-HPPA has been found to be a microbial metabolite in Escherichia (ECMDB). KEIO_ID H007 4-Hydroxyphenylpyruvic acid is an intermediate in the metabolism of the amino acid phenylalanine. 4-Hydroxyphenylpyruvic acid is an intermediate in the metabolism of the amino acid phenylalanine.

   

Malic acid

2-Hydroxyethane-1,2-dicarboxylic acid

C4H6O5 (134.0215226)


Malic acid (CAS: 6915-15-7) is a tart-tasting organic dicarboxylic acid that plays a role in many sour or tart foods. Apples contain malic acid, which contributes to the sourness of a green apple. Malic acid can make a wine taste tart, although the amount decreases with increasing fruit ripeness (Wikipedia). In its ionized form, malic acid is called malate. Malate is an intermediate of the TCA cycle along with fumarate. It can also be formed from pyruvate as one of the anaplerotic reactions. In humans, malic acid is both derived from food sources and synthesized in the body through the citric acid cycle or Krebs cycle which takes place in the mitochondria. Malates importance to the production of energy in the body during both aerobic and anaerobic conditions is well established. Under aerobic conditions, the oxidation of malate to oxaloacetate provides reducing equivalents to the mitochondria through the malate-aspartate redox shuttle. During anaerobic conditions, where a buildup of excess reducing equivalents inhibits glycolysis, malic acids simultaneous reduction to succinate and oxidation to oxaloacetate is capable of removing the accumulating reducing equivalents. This allows malic acid to reverse hypoxias inhibition of glycolysis and energy production. In studies on rats, it has been found that only tissue malate is depleted following exhaustive physical activity. Other key metabolites from the citric acid cycle needed for energy production were found to be unchanged. Because of this, a deficiency of malic acid has been hypothesized to be a major cause of physical exhaustion. Notably, the administration of malic acid to rats has been shown to elevate mitochondrial malate and increase mitochondrial respiration and energy production. Malic acid has been found to be a metabolite in Aspergillus (Hugo Vanden Bossche, D.W.R. Mackenzie and G. Cauwenbergh. Aspergillus and Aspergillosis, 1987). Acidulant, antioxidant, flavouring agent, flavour enhancer. Not for use in baby foods (GRAS) Malic acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=617-48-1 (retrieved 2024-07-01) (CAS RN: 6915-15-7). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). (S)-Malic acid ((S)-2-Hydroxysuccinic acid) is a dicarboxylic acid in naturally occurring form, contributes to the pleasantly sour taste of fruits and is used as a food additive. (S)-Malic acid ((S)-2-Hydroxysuccinic acid) is a dicarboxylic acid in naturally occurring form, contributes to the pleasantly sour taste of fruits and is used as a food additive. Malic acid (Hydroxybutanedioic acid) is a dicarboxylic acid that is naturally found in fruits such as apples and pears. It plays a role in many sour or tart foods. Malic acid (Hydroxybutanedioic acid) is a dicarboxylic acid that is naturally found in fruits such as apples and pears. It plays a role in many sour or tart foods.

   

m-Coumaric acid

trans-3-(m-Hydroxyphenyl)-2-propenoic acid

C9H8O3 (164.0473418)


m-Coumaric acid, also known as 3-coumarate, belongs to the class of organic compounds known as hydroxycinnamic acids. Hydroxycinnamic acids are compounds containing an cinnamic acid where the benzene ring is hydroxylated. m-Coumaric acid exists in all living organisms, ranging from bacteria to humans. m-Coumaric acid (CAS: 588-30-7) is a polyphenol metabolite from caffeic acid, formed by the gut microflora. Outside of the human body, m-Coumaric acid is found, on average, in the highest concentration within a few different foods, such as olives, corns, and beers. m-Coumaric acid has also been detected, but not quantified in several different foods, such as carrots, strawberries, grape wines, garden tomato, and bilberries. MCT-mediated absorption of phenolic compounds per se and their colonic metabolites would exert a significant impact on human health (PMID:16870009, 15479001, 15479001). m-Coumaric acid is transported by the monocarboxylic acid transporter (MCT). The amount of this compound in human biofluids is diet-dependant. m-Coumaric acid is detected after the consumption of whole grain. Coumaric acid is a hydroxycinnamic acid, an organic compound that is a hydroxy derivative of cinnamic acid. There are three isomers, o-coumaric acid, m-coumaric acid, and p-coumaric acid, that differ by the position of the hydroxy substitution of the phenyl group. p-Coumaric acid is the most abundant isomer of the three in nature. m-Coumaric acid is found in many foods, some of which are corn, garden tomato (variety), grape wine, and beer. Acquisition and generation of the data is financially supported in part by CREST/JST. (E)-m-Coumaric acid (3-Hydroxycinnamic acid) is an aromatic acid that highly abundant in food. (E)-m-Coumaric acid (3-Hydroxycinnamic acid) is an antioxidant. (E)-m-Coumaric acid (3-Hydroxycinnamic acid) is an aromatic acid that highly abundant in food. (E)-m-Coumaric acid (3-Hydroxycinnamic acid) is an antioxidant. m-Coumaric acid is a polyphenol metabolite from caffeic acid, formed by the gut microflora and the amount in human biofluids is diet-dependant. m-Coumaric acid is a polyphenol metabolite from caffeic acid, formed by the gut microflora and the amount in human biofluids is diet-dependant.

   

2,4-Dichlorophenoxyacetic acid

(2,4-Dichlorophenoxy)acetic acid (acd/name 4.0)

C8H6Cl2O3 (219.9693986)


2,4-D is a member of the phenoxy family of herbicides, which include:; 2,4-D is a synthetic auxin, which is a class of plant hormones. It is absorbed through the leaves and is translocated to the meristems of the plant. Uncontrolled, unsustainable growth ensues, causing stem curl-over, leaf withering, and eventual plant death. 2,4-D is typically applied as an amine salt, but more potent ester versions exist as well. 2,4-Dichlorophenoxyacetic acid (usually referred to by its abbreviation, 2,4-D) is a common systemic pesticide/herbicide used in the control of broadleaf weeds. It is one of the most widely used herbicide in the world, and the third most commonly used in North America. 2,4-D is a synthetic auxin (plant hormone), and as such it is often used in laboratories for plant research and as a supplement in plant cell culture media such as MS medium. It was a major ingredient in Agent Orange alongside its chemically similar relative, 2,4,5-T (2,4,5-trichlorophenoxyacetic acid). CONFIDENCE standard compound; INTERNAL_ID 737; DATASET 20200303_ENTACT_RP_MIX507; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4196; ORIGINAL_PRECURSOR_SCAN_NO 4194 CONFIDENCE standard compound; INTERNAL_ID 737; DATASET 20200303_ENTACT_RP_MIX507; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4186; ORIGINAL_PRECURSOR_SCAN_NO 4183 CONFIDENCE standard compound; INTERNAL_ID 737; DATASET 20200303_ENTACT_RP_MIX507; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4207; ORIGINAL_PRECURSOR_SCAN_NO 4205 CONFIDENCE standard compound; INTERNAL_ID 737; DATASET 20200303_ENTACT_RP_MIX507; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4200; ORIGINAL_PRECURSOR_SCAN_NO 4198 CONFIDENCE standard compound; INTERNAL_ID 737; DATASET 20200303_ENTACT_RP_MIX507; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4181; ORIGINAL_PRECURSOR_SCAN_NO 4178 CONFIDENCE standard compound; INTERNAL_ID 737; DATASET 20200303_ENTACT_RP_MIX507; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4198; ORIGINAL_PRECURSOR_SCAN_NO 4196 CONFIDENCE Reference Standard (Level 1); INTERNAL_ID 8378 CONFIDENCE standard compound; EAWAG_UCHEM_ID 267 D010575 - Pesticides > D006540 - Herbicides D016573 - Agrochemicals 2,4-D (2,4-Dichlorophenoxyacetic acid) is a selective systemic herbicide for the control of broad-leaved weeds. 2,4-D acts as a plant hormone, causing uncontrolled growth in the meristematic tissues. 2,4-D inhibits DNA and protein synthesis and thereby prevents normal plant growth and development[1].

   

1-Naphthaleneacetic acid

1-Naphthaleneacetic acid, plant cell culture tested, BioReagent, >=95\\%, crystalline

C12H10O2 (186.06807600000002)


Plant growth regulator. 1-Naphthaleneacetic acid is used for control of preharvest fruit drop, flower induction and fruit thinning in various crops such as apples, potatoes, olives and citrus fruits.1-Naphthaleneacetic acid (NAA) is a plant hormone in the auxin family. It is a rooting agent and used for the vegetative propagation of plants from stem and leaf cutting. It is also used for plant tissue culture. NAA does not occur naturally. Under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), products containing NAA require registration with the Environmental Protection Agency (EPA) as pesticides. (Wikipedia 1-naphthaleneacetic acid is a naphthylacetic acid substituted by a carboxymethyl group at position 1. It has a role as a synthetic auxin. It is a conjugate acid of a 1-naphthaleneacetate. 1-Naphthylacetic acid is a natural product found in Cocos nucifera, Humulus lupulus, and other organisms with data available. 1-Naphthaleneacetic acid (1-Naphthylacetic acid), a auxin, can promote plant growth. 1-Naphthaleneacetic acid is also an inhibitor of PLA2, with an IC50 of 13.16 μM[1][2]. 1-Naphthaleneacetic acid (1-Naphthylacetic acid), a auxin, can promote plant growth. 1-Naphthaleneacetic acid is also an inhibitor of PLA2, with an IC50 of 13.16 μM[1][2].

   

3,4-Di-O-caffeoylquinic acid

(1S,3R,4R,5R)-3,4-bis({[(2E)-3-(3,4-dihydroxyphenyl)prop-2-enoyl]oxy})-1,5-dihydroxycyclohexane-1-carboxylic acid

C25H24O12 (516.1267703999999)


Isolated from coffee and maté. 3,4-Dicaffeoylquinic acid is found in many foods, some of which are robusta coffee, arabica coffee, coffee, and coffee and coffee products. 3,4-Di-O-caffeoylquinic acid is found in arabica coffee. 3,4-Di-O-caffeoylquinic acid is isolated from coffe 3,4-Dicaffeoylquinic acid (3,4-Di-O-caffeoylquinic acid), naturally isolated from Laggera alata, has antioxidative, DNA protective, neuroprotective and hepatoprotective properties. 3,4-Dicaffeoylquinic acid exerts apoptosis-mediated cytotoxicity and α-glucosidase inhibitory effects. 3,4-Dicaffeoylquinic acid possesses a unique mechanism of anti-influenza viral activity, that is, enhancing viral clearance by increasing TRAIL[1][2][3]. 3,4-Dicaffeoylquinic acid (3,4-Di-O-caffeoylquinic acid), naturally isolated from Laggera alata, has antioxidative, DNA protective, neuroprotective and hepatoprotective properties. 3,4-Dicaffeoylquinic acid exerts apoptosis-mediated cytotoxicity and α-glucosidase inhibitory effects. 3,4-Dicaffeoylquinic acid possesses a unique mechanism of anti-influenza viral activity, that is, enhancing viral clearance by increasing TRAIL[1][2][3].

   

Ciliatine

beta-Aminoethylphosphonic acid

C2H8NO3P (125.0241788)


Ciliatine is an organophosphorus compound isolated from human and animal tissues. [HMDB] Acquisition and generation of the data is financially supported in part by CREST/JST. Ciliatine is an organophosphorus compound isolated from human and animal tissues. KEIO_ID A056 (2-Aminoethyl)phosphonic acid is an endogenous metabolite.

   

Alpha-ketobutyrate

2-oxobutanoic acid

C4H6O3 (102.0316926)


3-methyl pyruvic acid, also known as alpha-ketobutyric acid or 2-oxobutyric acid, belongs to short-chain keto acids and derivatives class of compounds. Those are keto acids with an alkyl chain the contains less than 6 carbon atoms. Thus, 3-methyl pyruvic acid is considered to be a fatty acid lipid molecule. 3-methyl pyruvic acid is soluble (in water) and a weakly acidic compound (based on its pKa). 3-methyl pyruvic acid can be found in a number of food items such as pepper (c. baccatum), triticale, european plum, and black walnut, which makes 3-methyl pyruvic acid a potential biomarker for the consumption of these food products. 3-methyl pyruvic acid can be found primarily in blood, cerebrospinal fluid (CSF), saliva, and urine. 3-methyl pyruvic acid exists in all living species, ranging from bacteria to humans. In humans, 3-methyl pyruvic acid is involved in several metabolic pathways, some of which include methionine metabolism, homocysteine degradation, threonine and 2-oxobutanoate degradation, and propanoate metabolism. 3-methyl pyruvic acid is also involved in several metabolic disorders, some of which include dimethylglycine dehydrogenase deficiency, methylenetetrahydrofolate reductase deficiency (MTHFRD), s-adenosylhomocysteine (SAH) hydrolase deficiency, and hyperglycinemia, non-ketotic. 2-Ketobutyric acid, also known as alpha-ketobutyrate or 2-oxobutyrate, belongs to the class of organic compounds known as short-chain keto acids and derivatives. These are keto acids with an alkyl chain the contains less than 6 carbon atoms. 2-Ketobutyric acid is a substance that is involved in the metabolism of many amino acids (glycine, methionine, valine, leucine, serine, threonine, isoleucine) as well as propanoate metabolism and C-5 branched dibasic acid metabolism. It is also one of the degradation products of threonine. It can be converted into propionyl-CoA (and subsequently methylmalonyl CoA, which can be converted into succinyl CoA, a citric acid cycle intermediate), and thus enter the citric acid cycle. More specifically, 2-ketobutyric acid is a product of the lysis of cystathionine. 2-Oxobutanoic acid is a product in the enzymatic cleavage of cystathionine.

   

2-Furoic acid

furan-2-carboxylic acid

C5H4O3 (112.0160434)


Furoic acid is a metabolite that appears in the urine of workers occupationally exposed to furfural and is a marker of exposure to this compound. Furfural is a heterocyclic aldehyde that is commonly used as a solvent in industry. It is readily absorbed into the body via the lungs and has significant skin absorption. Furfural is an irritant of the eyes, mucous membranes, and skin and is a central nervous system depressant. Furfural as a confirmed animal carcinogen with unknown relevance to humans (It has been suggested that is a substance that produces hepatic cirrhosis). Once in the body, furfural is metabolized rapidly via oxidation to the metabolite furoic acid, which is then conjugated with glycine and excreted in the urine in both free and conjugated forms. (PMID: 3751566, 4630229, 12587683). 2-Furoic acid is a biomarker for the consumption of beer. 2-Furancarboxylic acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=88-14-2 (retrieved 2024-07-10) (CAS RN: 88-14-2). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). 2-Furoic acid (Furan-2-carboxylic acid) is an organic compound produced through furfural oxidation[1]. 2-Furoic acid exhibits hypolipidemic effet, lowers both serum cholesterol and serum triglyceride levels in rats[2]. 2-Furoic acid (Furan-2-carboxylic acid) is an organic compound produced through furfural oxidation[1]. 2-Furoic acid exhibits hypolipidemic effet, lowers both serum cholesterol and serum triglyceride levels in rats[2]. 2-Furoic acid (Furan-2-carboxylic acid) is an organic compound produced through furfural oxidation[1]. 2-Furoic acid exhibits hypolipidemic effet, lowers both serum cholesterol and serum triglyceride levels in rats[2].

   

Citrulline

(S)-2-Amino-5-(aminocarbonyl)aminopentanoic acid

C6H13N3O3 (175.0956868)


Citrulline, also known as Cit or δ-ureidonorvaline, belongs to the class of organic compounds known as l-alpha-amino acids. These are alpha amino acids which have the L-configuration of the alpha-carbon atom. Citrulline has the formula H2NC(O)NH(CH2)3CH(NH2)CO2H. Citrulline exists in all living species, ranging from bacteria to humans. Within humans, citrulline participates in a number of enzymatic reactions. In particular, citrulline can be biosynthesized from carbamoyl phosphate and ornithine which is catalyzed by the enzyme ornithine carbamoyltransferase. In addition, citrulline and L-aspartic acid can be converted into argininosuccinic acid through the action of the enzyme argininosuccinate synthase. In humans, citrulline is involved in the metabolic disorder called argininemia. Citrulline has also been found to be associated with several diseases such as ulcerative colitis, rheumatoid arthritis, and citrullinemia type II. Citrulline has also been linked to several inborn metabolic disorders including argininosuccinic aciduria and fumarase deficiency. Outside of the human body, citrulline is found, on average, in the highest concentration in a few different foods such as wheats, oats, and cucumbers and in a lower concentration in swiss chards, yellow wax beans, and potato. Citrulline has also been detected, but not quantified in several different foods, such as epazotes, lotus, common buckwheats, strawberry guava, and italian sweet red peppers. Citrulline is a potentially toxic compound. Proteins that normally contain citrulline residues include myelin basic protein (MBP), filaggrin, and several histone proteins, whereas other proteins, such as fibrin and vimentin are susceptible to citrullination during cell death and tissue inflammation. Citrulline is also produced as a byproduct of the enzymatic production of nitric oxide from the amino acid arginine, catalyzed by nitric oxide synthase. It is also produced from arginine as a byproduct of the reaction catalyzed by NOS family (NOS; EC1.14.13.39). [Spectral] L-Citrulline (exact mass = 175.09569) and L-Glutamate (exact mass = 147.05316) were not completely separated on HPLC under the present analytical conditions as described in AC$XXX. Additionally some of the peaks in this data contains dimers and other unidentified ions. Acquisition and generation of the data is financially supported in part by CREST/JST. COVID info from clinicaltrial, clinicaltrials, clinical trial, clinical trials Occurs in the juice of watermelon (Citrullus vulgaris) IPB_RECORD: 257; CONFIDENCE confident structure KEIO_ID C013 Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS 2-Amino-5-ureidopentanoic acid is an endogenous metabolite. 2-Amino-5-ureidopentanoic acid is an endogenous metabolite. L-Citrulline is an amino acid derived from ornithine in the catabolism of proline or glutamine and glutamate, or from l-arginine via arginine-citrulline pathway. L-Citrulline is an amino acid derived from ornithine in the catabolism of proline or glutamine and glutamate, or from l-arginine via arginine-citrulline pathway.

   

1,2-Cyclohexanedione

1,2-CYCLOHEXANEDIONE,ketone form

C6H8O2 (112.05242679999999)


1,2-Cyclohexanedione is a flavour material for foo 1,2-Cyclohexanedione is an endogenous metabolite.

   

3,4-Dihydroxymandelic acid

2-(3,4-dihydroxyphenyl)-2-hydroxyacetic acid

C8H8O5 (184.0371718)


3,4-Dihydroxymandelic acid, also known as DOMA or 3,4-dihydroxyphenylglycolate, belongs to the class of organic compounds known as catechols. Catechols are compounds containing a 1,2-benzenediol moiety. 3,4-Dihydroxymandelic acid exists in all living organisms, ranging from bacteria to humans. Within humans, 3,4-dihydroxymandelic acid participates in a number of enzymatic reactions. In particular, 3,4-dihydroxymandelic acid can be biosynthesized from 3,4-dihydroxymandelaldehyde through its interaction with the enzyme aldehyde dehydrogenase, dimeric nadp-preferring. In addition, 3,4-dihydroxymandelic acid and guaiacol can be converted into vanillylmandelic acid and pyrocatechol through the action of the enzyme catechol O-methyltransferase. In humans, 3,4-dihydroxymandelic acid is involved in the metabolic disorder called tyrosinemia type I. Outside of the human body, 3,4-Dihydroxymandelic acid has been detected, but not quantified in several different foods, such as yellow wax beans, soy beans, pomegranates, cucurbita (gourd), and daikon radish. 3,4-dihydroxymandelic acid, also known as 3,4-dihydroxyphenylglycolate or (3,4-dihydroxyphenyl)(hydroxy)acetic acid, is a member of the class of compounds known as catechols. Catechols are compounds containing a 1,2-benzenediol moiety. 3,4-dihydroxymandelic acid is soluble (in water) and a moderately acidic compound (based on its pKa). 3,4-dihydroxymandelic acid can be found in a number of food items such as lime, pitanga, sapodilla, and persimmon, which makes 3,4-dihydroxymandelic acid a potential biomarker for the consumption of these food products. 3,4-dihydroxymandelic acid can be found primarily in blood and urine, as well as in human nerve cells tissue. In humans, 3,4-dihydroxymandelic acid is involved in a couple of metabolic pathways, which include disulfiram action pathway and tyrosine metabolism. 3,4-dihydroxymandelic acid is also involved in several metabolic disorders, some of which include hawkinsinuria, alkaptonuria, dopamine beta-hydroxylase deficiency, and tyrosinemia, transient, of the newborn. D000890 - Anti-Infective Agents > D000892 - Anti-Infective Agents, Urinary > D008333 - Mandelic Acids Acquisition and generation of the data is financially supported in part by CREST/JST. KEIO_ID D066 3,4-Dihydroxymandelic acid is a metabolite of norepinephrine.

   

2-Aminobenzenesulfonic acid

1-Aminobenzene-2-sulphonic acid

C6H7NO3S (173.0146632)


2-Aminobenzenesulfonic acid is an endogenous metabolite.

   

1-Aminocyclopropanecarboxylic acid

1-Aminocyclopropane-1-carboxylic acid hydrochloride

C4H7NO2 (101.0476762)


1-aminocyclopropanecarboxylic acid, also known as acc or 1-amino-1-carboxycyclopropane, is a member of the class of compounds known as alpha amino acids. Alpha amino acids are amino acids in which the amino group is attached to the carbon atom immediately adjacent to the carboxylate group (alpha carbon). 1-aminocyclopropanecarboxylic acid is soluble (in water) and a moderately acidic compound (based on its pKa). 1-aminocyclopropanecarboxylic acid can be found in a number of food items such as american cranberry, chayote, sour cherry, and garden rhubarb, which makes 1-aminocyclopropanecarboxylic acid a potential biomarker for the consumption of these food products. ACC plays an important role in the biosynthesis of the plant hormone ethylene. It is synthesized by the enzyme ACC synthase ( EC 4.4.1.14) from methionine and converted to ethylene by ACC oxidase (EC 1.14.17.4) . 1-Aminocyclopropanecarboxylic acid is found in fruits. 1-Aminocyclopropanecarboxylic acid is isolated from apple and pear juice and cranberries. Acquisition and generation of the data is financially supported in part by CREST/JST. D002491 - Central Nervous System Agents > D018696 - Neuroprotective Agents D020011 - Protective Agents KEIO_ID A047 1-Aminocyclopropane-1-carboxylic acid is an endogenous metabolite.

   

1-Hydroxy-2-naphthoic acid

1-Hydroxy-2-naphthoic acid, monosodium salt

C11H8O3 (188.0473418)


1-Hydroxy-2-naphthoic acid is an endogenous metabolite.

   

D-Leucic acid

delta-2-Hydroxy-4-methylpentanoic acid

C6H12O3 (132.0786402)


D-Leucic acid is an alpha-hydroxycarboxylic acid present in patients affected with Short-bowel syndrome (an Inborn errors of metabolism, OMIM 175200) (PMID 9766851), and in Maple Syrup Urine Disease (MSUD, an autosomal recessive inherited metabolic disorder of branched-chain amino acid) (PMID 9766851). [HMDB] D-Leucic acid is an alpha-hydroxycarboxylic acid present in patients affected with Short-bowel syndrome (an Inborn errors of metabolism, OMIM 175200) (PMID 9766851), and in Maple Syrup Urine Disease (MSUD, an autosomal recessive inherited metabolic disorder of branched-chain amino acid) (PMID 9766851). Acquisition and generation of the data is financially supported in part by CREST/JST. KEIO_ID H091 (R)-Leucic acid is an amino acid metabolite[1].

   

alpha-Hydroxyisobutyric acid

alpha-Hydroxy-alpha-methylpropanoic acid

C4H8O3 (104.0473418)


Alpha-Hydroxyisobutyric acid is a metabolite of methyl tert-butyl ether (MTBE). MTBE may be obtained through environmental exposure. MTBE is rapidly eliminated from the body, mainly through expired air as the unchanged compound. MTBE is to some extent metabolised to t-butyl alcohol (TBA) and formaldehyde and oxidised to 2-methyl-1,2-propanediol and a-hydroxy isobuturic acid. Alpha-Hydroxyisobutyric acid has been used as an arial bactericide. [HMDB] alpha-Hydroxyisobutyric acid is a metabolite of methyl tert-butyl ether (MTBE). MTBE may be obtained through environmental exposure. MTBE is rapidly eliminated from the body, mainly through expired air as the unchanged compound. MTBE is to some extent metabolized to t-butyl alcohol (TBA) and formaldehyde and oxidized to 2-methyl-1,2-propanediol and alpha-hydroxyisobutyric acid. alpha-Hydroxyisobutyric acid has been used as an aerial bactericide. 2-Hydroxyisobutyric acid is an endogenous metabolite.

   

3-(3-Hydroxyphenyl)propanoic acid

dihydro-3-Coumaric acid, monosodium salt

C9H10O3 (166.062991)


3-(3-Hydroxyphenyl)propanoic (hMPP) acid is one of the major metabolites of ingested caffeic acid (PMID: 15479001) and of the phenolic degradation products of proanthocyanidins (the most abundant polyphenol present in chocolate) by the microflora in the colon (PMID: 12663291). mHPP is suspected to have antioxidants properties and is actively absorbed by the monocarboxylic acid transporter (MCT) in intestinal Caco-2 cell monolayers (PMID: 15479001, 12663291). hMPP has been found to be a metabolite of Clostridium, Escherichia, and Eubacterium (PMID: 28393285, 19520845). 3-(3-Hydroxyphenyl)propanoic acid is a flavonoid metabolite. 3-(3-Hydroxyphenyl)propanoic acid is a phenolic acid metabolite formed by the gut microflora detected after the consumption of whole grain. 3-(3-Hydroxyphenyl)propanoic (hMPP) acid is one of the major metabolites of ingested caffeic acid (PMID 15479001) and of the phenolic degradation products of proanthocyanidins (the most abundant polyphenol present in chocolate) by the microflora in the colon (PMID 12663291). mHPP is suspected to have antioxidants properties and is actively absorbed by the monocarboxylic acid transporter (MCT) in intestinal Caco-2 cell monolayers (PMID 15479001, 12663291). [HMDB] 3-(3-Hydroxyphenyl)propionic acid is a flavonoid metabolite formed by human microflora. 3-(3-Hydroxyphenyl)propionic acid shows vasodilatory activity[1]. 3-(3-Hydroxyphenyl)propionic acid is a flavonoid metabolite formed by human microflora. 3-(3-Hydroxyphenyl)propionic acid shows vasodilatory activity[1].

   

alpha-Ketoisovaleric acid

3-Methyl-2-oxobutyric acid sodium salt

C5H8O3 (116.0473418)


alpha-Ketoisovaleric acid is an abnormal metabolite that arises from the incomplete breakdown of branched-chain amino acids. alpha-Ketoisovaleric acid is a neurotoxin, an acidogen, and a metabotoxin. A neurotoxin causes damage to nerve cells and nerve tissues. An acidogen is an acidic compound that induces acidosis, which has multiple adverse effects on many organ systems. A metabotoxin is an endogenously produced metabolite that causes adverse health effects at chronically high levels. Chronically high levels of alpha-ketoisovaleric acid are associated with maple syrup urine disease. MSUD is a metabolic disorder caused by a deficiency of the branched-chain alpha-keto acid dehydrogenase complex (BCKDC), leading to a buildup of the branched-chain amino acids (leucine, isoleucine, and valine) and their toxic by-products (ketoacids) in the blood and urine. The symptoms of MSUD often show in infancy and lead to severe brain damage if untreated. MSUD may also present later depending on the severity of the disease. If left untreated in older individuals, during times of metabolic crisis, symptoms of the condition include uncharacteristically inappropriate, extreme, or erratic behaviour and moods, hallucinations, anorexia, weight loss, anemia, diarrhea, vomiting, dehydration, lethargy, oscillating hypertonia and hypotonia, ataxia, seizures, hypoglycemia, ketoacidosis, opisthotonus, pancreatitis, rapid neurological decline, and coma. In maple syrup urine disease, the brain concentration of branched-chain ketoacids can increase 10- to 20-fold. This leads to a depletion of glutamate and a consequent reduction in the concentration of brain glutamine, aspartate, alanine, and other amino acids. The result is a compromise of energy metabolism because of a failure of the malate-aspartate shuttle and a diminished rate of protein synthesis (PMID: 15930465). alpha-Ketoisovaleric acid is a keto-acid, which is a subclass of organic acids. Abnormally high levels of organic acids in the blood (organic acidemia), urine (organic aciduria), the brain, and other tissues lead to general metabolic acidosis. Acidosis typically occurs when arterial pH falls below 7.35. In infants with acidosis, the initial symptoms include poor feeding, vomiting, loss of appetite, weak muscle tone (hypotonia), and lack of energy (lethargy). These can progress to heart, liver, and kidney abnormalities, seizures, coma, and possibly death. These are also the characteristic symptoms of untreated MSUD. Many affected children with organic acidemias experience intellectual disability or delayed development. Flavouring ingredient for use in butter-type flavours. Found in banana, bread, cheeses, asparagus, beer and cocoa KEIO_ID M006 3-Methyl-2-oxobutanoic acid is a precursor of pantothenic acid in Escherichia coli.

   

Maleamic acid

4-amino-4-oxobut-2-enoic acid

C4H5NO3 (115.026942)


A dicarboxylic acid monoamide of maleamic acid. (Z)-4-Amino-4-oxobut-2-enoic acid is an endogenous metabolite.

   

5-Carboxyuracil

2,4-Dihydroxypyrimidine-5-carboxylic acid

C5H4N2O4 (156.0171064)


2,4-Dihydroxypyrimidine-5-carboxylic Acid is an endogenous metabolite.

   

Phthalaldehydic acid

2-Carboxybenzaldehyde

C8H6O3 (150.03169259999999)


KEIO_ID C038 2-Carboxybenzaldehyde is the major metabolite found in phenanthrene metabolism. Phenanthrene can be degrade by Pseudomonas sp. Lphe-2 strain[1].

   

2-Hydroxybutyric acid

DL-alpha-Hydroxybutyric acid barium salt

C4H8O3 (104.0473418)


2-Hydroxybutyric acid (CAS: 600-15-7), also known as alpha-hydroxybutyrate, is an organic acid derived from alpha-ketobutyrate. alpha-Ketobutyrate is produced by amino acid catabolism (threonine and methionine) and glutathione anabolism (cysteine formation pathway) and is metabolized into propionyl-CoA and carbon dioxide (PMID: 20526369). 2-Hydroxybutyric acid is formed as a byproduct from the formation of alpha-ketobutyrate via a reaction catalyzed by lactate dehydrogenase (LDH) or alpha-hydroxybutyrate dehydrogenase (alphaHBDH). alpha-Hydroxybutyric acid is primarily produced in mammalian hepatic tissues that catabolize L-threonine or synthesize glutathione. Oxidative stress or detoxification of xenobiotics in the liver can dramatically increase the rate of hepatic glutathione synthesis. Under such metabolic stress conditions, supplies of L-cysteine for glutathione synthesis become limiting, so homocysteine is diverted from the transmethylation pathway (which forms methionine) into the transsulfuration pathway (which forms cystathionine). alpha-Ketobutyrate is released as a byproduct when cystathionine is cleaved into cysteine that is incorporated into glutathione. Chronic shifts in the rate of glutathione synthesis may be reflected by urinary excretion of 2-hydroxybutyrate. 2-Hydroxybutyrate is an early marker for both insulin resistance and impaired glucose regulation that appears to arise due to increased lipid oxidation and oxidative stress (PMID: 20526369). 2-Hydroxybutyric acid is often found in the urine of patients suffering from lactic acidosis and ketoacidosis. 2-Hydroxybutyric acid generally appears at high concentrations in situations related to deficient energy metabolism (e.g. birth asphyxia) and also in inherited metabolic diseases affecting the central nervous system during neonatal development, such as "cerebral" lactic acidosis, glutaric aciduria type II, dihydrolipoyl dehydrogenase (E3) deficiency, and propionic acidemia. More recently it has been noted that elevated levels of alpha-hydroxybutyrate in the plasma is a good marker for early-stage type II diabetes (PMID: 19166731). It was concluded from studies done in the mid-1970s that an increased NADH2/NAD ratio was the most important factor for the production of 2-hydroxybutyric acid (PMID: 168632). 2-Hydroxybutyric acid is an organic acid that is involved in propanoate metabolism. It is produced in mammalian tissues (principaly hepatic) that catabolize L-threonine or synthesize glutathione. Oxidative stress or detoxification demands can dramatically increase the rate of hepatic glutathione synthesis. Under such metabolic stress conditions, supplies of L-cysteine for glutathione synthesis become limiting, so homocysteine is diverted from the transmethylation pathway forming methionine into the transsulfuration pathway forming cystathionine. 2-Hydroxybutyrate is released as a by-product when cystathionine is cleaved to cysteine that is incorporated into glutathione. 2-Hydroxybutyric acid is often found in the urine of patients suffering from lactic acidosis and ketoacidosis. 2-Hydroxybutyric acid generally appears at high concentrations in situations related to deficient energy metabolism (e.g., birth asphyxia) and also in inherited metabolic diseases affecting the central nervous system during neonatal development, such as "cerebral" lactic acidosis, glutaric aciduria type II, dihydrolipoyl dehydrogenase (E3) deficiency, and propionic acidemia. More recently it has been noted that elevated levels of alpha-hydroxybutyrate in the plasma is a good marker for early stage type II diabetes (PMID: 19166731). It was concluded from studies done in the mid 1970s that an increased NADH2/NAD ratio was the most important factor for the production of 2-hydorxybutyric acid (PMID: 168632) [HMDB] 2-Hydroxybutyric acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=565-70-8 (retrieved 2024-07-16) (CAS RN: 600-15-7). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). (S)-2-Hydroxybutanoic acid is the S-enantiomer of?2-Hydroxybutanoic acid. 2-Hydroxybutanoic acid, a coproduct of protein metabolism, is an insulin resistance (IR) biomarker[1].

   

Undecylenic acid

Zinc undecylenate (undecylenic acid)

C11H20O2 (184.14632200000003)


Undecylenic acid, also known as 10-undecylenate or omega-undecenoic acid, belongs to the class of organic compounds known as medium-chain fatty acids. These are fatty acids with an aliphatic tail that contains between 4 and 12 carbon atoms. Undecylenic acid is a very hydrophobic molecule, practically insoluble in water, and relatively neutral. Undecylenic acid is found in black elderberry. Undecylenic acid is a flavouring ingredient and is a sweet and woody-tasting compound. Undecylenic acid was identified as one of forty plasma metabolites that could be used to predict gut microbiome Shannon diversity (PMID:31477923). Shannon diversity is a metric that summarizes both species abundance and evenness, and it has been suggested as a marker for microbiome health. Undecylenic acid is used in the production of the bioplastic Nylon-11, in the treatment of fungal infections in the skin, and as a precursor in the manufacture of a wide assortment of pharmaceuticals, cosmetics, perfumes, and personal hygiene products. D - Dermatologicals > D01 - Antifungals for dermatological use > D01A - Antifungals for topical use Flavouring ingredient. Undecylenic acid is found in black elderberry. C254 - Anti-Infective Agent > C514 - Antifungal Agent Same as: D02159 10-Undecenoic acid is used as a starting agent in the synthesis of Pheromone (11Z)-hexadecenal. 10-Undecenoic acid is used as a starting agent in the synthesis of Pheromone (11Z)-hexadecenal.

   

2-Oxovaleric acid

2-Ketopentanoic acid, sodium salt

C5H8O3 (116.0473418)


2-Oxovaleric acid is an alpha-ketoacid is a metabolite usually found in human biofluids. Ketoacids have been known to play an important part in the metabolism of valine, leucine, isoleucine. 2-Oxovaleric acid presence has been determined in human blood serum and urine in numerous scientific documents, although its origin remains unclear. (PMID: 11482739, 9869358, 3235498). Acquisition and generation of the data is financially supported in part by CREST/JST. Isolated from Trigonella caerulea (sweet trefoil) 2-Oxovaleric acid is a keto acid that is found in human blood.

   

FA 15:0

Dodecanoic acid, 3,7,11-trimethyl-

C15H30O2 (242.224568)


A branched-chain saturated fatty acid comprising tetradecanoic acid carrying a 12-methyl substituent. CONFIDENCE standard compound; INTERNAL_ID 246 CONFIDENCE standard compound; INTERNAL_ID 247 13-Methyltetradecanoic acid (13-MTD), a saturated branched-chain fatty acid with potent anticancer effects. 13-Methyltetradecanoic acid induces apoptosis in many types of human cancer cells[1][2]. 13-Methyltetradecanoic acid (13-MTD), a saturated branched-chain fatty acid with potent anticancer effects. 13-Methyltetradecanoic acid induces apoptosis in many types of human cancer cells[1][2].

   

2-Methylcitric acid

2-hydroxy-1-methylpropane-1,2,3-tricarboxylic acid

C7H10O7 (206.042651)


Methylcitric acid (MCA) is elevated in body fluids of patients with propionic acidaemia (PA; OMIM 232000, 232050), methylmalonic aciduria (MMA; OMIM 251000, 251120) and multiple carboxylase deficiency (OMIM 253260, 253270), which are inherited disorders. MCA is formed by condensation of accumulated propionyl- CoA and oxalacetate by the enzyme si-citrate synthase (EC 4.1.3.7). MCA molecule has two stereogenic centers so that it can occur in the form of four stereoisomers. Only two stereoisomers of MCA, (2S, 3S) and (2R, 3S), were found in human urine (PMID: 17295121). Methylcitric acid (MCA) is elevated in body fluids of patients with propionic acidaemia (PA; OMIM 232000, 232050), methylmalonic aciduria (MMA; OMIM 251000, 251120) and multiple carboxylase deficiency (OMIM 253260, 253270). MCA is formed by condensation of accumulated propionyl- CoA and oxalacetate by the enzyme si-citrate synthase (EC 4.1.3.7). MCA molecule has two stereogenic centers so that it can occur in the form of four stereoisomers. Only two stereoisomers of MCA, (2S, 3S) and (2R, 3S), were found in human urine. (PMID: 17295121) [HMDB] 2-Methylcitric acid (Methylcitric acid) is an endogenous metabolite in the 2-methylcitric acid cycle. 2-Methylcitric acid accumulates in methylmalonic and propionic acidemias and acts as a marker metabolite. 2-Methylcitric acid markedly inhibits ADP-stimulated and uncoupled respiration in mitochondria supported by glutamate[1]. 2-Methylcitric acid (Methylcitric acid) is an endogenous metabolite in the 2-methylcitric acid cycle. 2-Methylcitric acid accumulates in methylmalonic and propionic acidemias and acts as a marker metabolite. 2-Methylcitric acid markedly inhibits ADP-stimulated and uncoupled respiration in mitochondria supported by glutamate[1]. 2-Methylcitric acid (Methylcitric acid) is an endogenous metabolite in the 2-methylcitric acid cycle. 2-Methylcitric acid accumulates in methylmalonic and propionic acidemias and acts as a marker metabolite. 2-Methylcitric acid markedly inhibits ADP-stimulated and uncoupled respiration in mitochondria supported by glutamate[1].

   

1-Phenyl-1,2-propanedione

3-Phenyl-2,3-propanedione

C9H8O2 (148.0524268)


1-Phenyl-1,2-propanedione is found in coffee and coffee products. 1-Phenyl-1,2-propanedione is present in coffee aroma. 1-Phenyl-1,2-propanedione is a flavouring ingredient. Present in coffee aroma. Flavouring ingredient. 1-Phenyl-1,2-propanedione is found in coffee and coffee products. 1-Phenylpropane-1,2-dione, isolated from young Ephedra sinica Stapf (Ephedraceae), is biosynthetic precursors of the ephedrine alkaloids[1][2]. 1-Phenylpropane-1,2-dione, isolated from young Ephedra sinica Stapf (Ephedraceae), is biosynthetic precursors of the ephedrine alkaloids[1][2].

   

Dihydroxyacetone

Summers brand OF dihydroxyacetone

C3H6O3 (90.0316926)


Dihydroxyacetone, also known as 1,3-dihydroxy-2-propanone or glycerone, is a member of the class of compounds known as monosaccharides. Monosaccharides are compounds containing one carbohydrate unit not glycosidically linked to another such unit, and no set of two or more glycosidically linked carbohydrate units. Monosaccharides have the general formula CnH2nOn. Dihydroxyacetone is soluble (in water) and a very weakly acidic compound (based on its pKa). Dihydroxyacetone can be found in a number of food items such as cauliflower, green bell pepper, black cabbage, and sweet basil, which makes dihydroxyacetone a potential biomarker for the consumption of these food products. Dihydroxyacetone can be found primarily in urine, as well as in human muscle and stratum corneum tissues. Dihydroxyacetone exists in all living species, ranging from bacteria to humans. Dihydroxyacetone is primarily used as an ingredient in sunless tanning products. It is often derived from plant sources such as sugar beets and sugar cane, and by the fermentation of glycerin . Dihydroxyacetone (also known as DHA) is a ketotriose compound. Its addition to blood preservation solutions results in better maintenance of 2,3-diphosphoglycerate levels during storage. It is readily phosphorylated to dihydroxyacetone phosphate by triokinase in erythrocytes. In combination with naphthoquinones, it acts as a sunscreening agent. Dihydroxyacetone is the simplest of all ketoses and, having no chiral centre, is the only one that has no optical activity. Dihydroxyacetone is a simple non-toxic sugar. It is often derived from plant sources such as sugar beets and sugar cane, by the fermentation of glycerin. Dihydroxyacetone is a white crystalline powder which is water soluble. 1,3-Dihydroxyacetone (DHA), the main active ingredient in sunless tanning skin-care preparations and an important precursor for the synthesis of various fine chemicals, is produced on an industrial scale by microbial fermentation of glycerol over Gluconobacter oxydans[1]. 1,3-Dihydroxyacetone (DHA), the main active ingredient in sunless tanning skin-care preparations and an important precursor for the synthesis of various fine chemicals, is produced on an industrial scale by microbial fermentation of glycerol over Gluconobacter oxydans[1].

   

3-Hydroxyisobutyric acid

3-Hydroxyisobutyric acid

C4H8O3 (104.0473418)


A 4-carbon, branched hydroxy fatty acid and intermediate in the metabolism of valine. 3-Hydroxyisobutyric acid is an important interorgan metabolite, an intermediate in the pathways of l-valine and thymine and a good gluconeogenic substrate.

   

2-Hydroxyadipic acid

2-hydroxy-Hexanedioic acid

C6H10O5 (162.052821)


2-Hydroxyadipic acid is a hydroxy-dicarboxylic acid formed by the reduction of 2-ketoadipic acid. A deficiency of 2-ketoadipic dehydrogenase causes 2-ketoadipic acidemia or 2-oxoadipic acidemia (OMIM: 245130), a genetic disorder characterized by accumulation and excretion of 2-hydroxyadipic acid (with 2-ketoadipic and 2-aminoadipic) (OMMBID - The Online Metabolic and Molecular Bases of Inherited Disease, CH.95). When present in sufficiently high levels, 2-hydroxyadipic acid can act as an acidogen and a metabotoxin. An acidogen is an acidic compound that induces acidosis, which has multiple adverse effects on many organ systems. A metabotoxin is an endogenously produced metabolite that causes adverse health effects at chronically high levels. Chronically high levels of 2-hydroxyadipic acid are associated with at least three inborn errors of metabolism including 2-oxoadipic acidemia, 2-aminoadipic aciduria, and 2-oxoadipic aciduria. 2-Hydroxyadipic acid is an organic acid. Abnormally high levels of organic acids in the blood (organic acidemia), urine (organic aciduria), the brain, and other tissues lead to general metabolic acidosis. Acidosis typically occurs when arterial pH falls below 7.35. In infants with acidosis, the initial symptoms include poor feeding, vomiting, loss of appetite, weak muscle tone (hypotonia), and lack of energy (lethargy). These can progress to heart abnormalities, kidney abnormalities, liver damage, seizures, coma, and possibly death. These are also the characteristic symptoms of the untreated IEMs mentioned above. Many affected children with organic acidemias experience intellectual disability or delayed development. In adults, acidosis or acidemia is characterized by headaches, confusion, feeling tired, tremors, sleepiness, and seizures. 2-Hydroxyadipic acid is a hydroxy-dicarboxylic acid formed by the reduction of 2-ketoadipic acid. Deficiency of 2-ketoadipic dehydrogenase causes 2-ketoadipic acidemia (OMIM 245130), a condition characterized by accumulation and excretion of 2-hydroxyadipic acid (with 2-ketoadipic and 2-aminoadipic) probably without adverse phenotypic effects.(OMMBID - The Metabolic and Molecular Bases of Inherited Disease, CH.95). A method involving derivatization and combined gas chromatography--mass spectrometry has been recently developed to separate the enantiomers of 3-hydroxyadipic acid (PMID: 3980660). It has been shown that 3-hydroxyadipic acid excreted in urine consists of at least 95\\\% of the L-enantiomer. This finding supports the hypothesis that dicarboxylic acids are degraded by ordinary beta-oxidation, and indicates that adipic acid may be converted into succinic acid. (PMID: 3980660) [HMDB] 2-Hydroxyadipic acid is an organic acid, formed by the reduction of 2-ketoadipic acid.

   

3-Methylthiopropionic acid

3-Methylthiopropionate sodium salt

C4H8O2S (120.0244988)


3-methylthiopropionate is one of the metabolites of methionine (especially of D-methionine) and pharmacokinetics of 3-MTP in urine seems to contribute to the clinicopathological investigation of the liver cirrhosis. (PMID 3997054) [HMDB] 3-methylthiopropionate is one of the metabolites of methionine (especially of D-methionine) and pharmacokinetics of 3-MTP in urine seems to contribute to the clinicopathological investigation of the liver cirrhosis. (PMID 3997054). 3-(Methylthio)propionic acid is an intermediate in the methionine metabolism.

   

Usnic acid

2,6-Diacetyl-3,7,9-trihydroxy-8,9b-dimethyldibenzofuran-1-one

C18H16O7 (344.0895986)


A member of the class of dibenzofurans that is dibenzo[b,d]furan-1(9bH)-one substituted by acetyl groups at positions 2 and 6, hydroxy groups at positions 3 and 7 and methyl groups at positions 8 and 9b. D000890 - Anti-Infective Agents > D000977 - Antiparasitic Agents > D000981 - Antiprotozoal Agents relative retention time with respect to 9-anthracene Carboxylic Acid is 1.457 D000890 - Anti-Infective Agents > D000935 - Antifungal Agents relative retention time with respect to 9-anthracene Carboxylic Acid is 1.456 relative retention time with respect to 9-anthracene Carboxylic Acid is 1.458 relative retention time with respect to 9-anthracene Carboxylic Acid is 1.459 relative retention time with respect to 9-anthracene Carboxylic Acid is 1.455 (+)-Usnic acid is isolated from isolated from lichens, binds at the ATP-binding pocket of mTOR, and inhibits mTORC1/2 activity. (+)-Usnic acid inhibits the phosphorylation of mTOR downstream effectors: Akt (Ser473), 4EBP1, S6K, induces autophay, with anti-cancer activity[1]. (+)-Usnic acid possesses antimicrobial activity against a number of planktonic gram-positive bacteria, including Staphylococcus aureus, Enterococcus faecalis, and Enterococcus faecium[2]. (+)-Usnic acid is isolated from isolated from lichens, binds at the ATP-binding pocket of mTOR, and inhibits mTORC1/2 activity. (+)-Usnic acid inhibits the phosphorylation of mTOR downstream effectors: Akt (Ser473), 4EBP1, S6K, induces autophay, with anti-cancer activity[1]. (+)-Usnic acid possesses antimicrobial activity against a number of planktonic gram-positive bacteria, including Staphylococcus aureus, Enterococcus faecalis, and Enterococcus faecium[2]. (+)-Usnic acid is isolated from isolated from lichens, binds at the ATP-binding pocket of mTOR, and inhibits mTORC1/2 activity. (+)-Usnic acid inhibits the phosphorylation of mTOR downstream effectors: Akt (Ser473), 4EBP1, S6K, induces autophay, with anti-cancer activity[1]. (+)-Usnic acid possesses antimicrobial activity against a number of planktonic gram-positive bacteria, including Staphylococcus aureus, Enterococcus faecalis, and Enterococcus faecium[2]. (+)-Usnic acid is isolated from isolated from lichens, binds at the ATP-binding pocket of mTOR, and inhibits mTORC1/2 activity. (+)-Usnic acid inhibits the phosphorylation of mTOR downstream effectors: Akt (Ser473), 4EBP1, S6K, induces autophay, with anti-cancer activity[1]. (+)-Usnic acid possesses antimicrobial activity against a number of planktonic gram-positive bacteria, including Staphylococcus aureus, Enterococcus faecalis, and Enterococcus faecium[2]. Usnic acid, a lichen-derived secondary metabolite, has a unique dibenzofuran skeleton. Usnic acid has excellent anticancer and antimicrobial properties. Usnic acid significantly inhibits RANKL-mediated osteoclast formation and function by reducing the transcriptional and translational expression of NFATc1[1]. Usnic acid, a lichen-derived secondary metabolite, has a unique dibenzofuran skeleton. Usnic acid has excellent anticancer and antimicrobial properties. Usnic acid significantly inhibits RANKL-mediated osteoclast formation and function by reducing the transcriptional and translational expression of NFATc1[1].

   

3-Amino-4-hydroxybenzoic acid

3-Amino-4-hydroxybenzoic acid

C7H7NO3 (153.0425912)


3-Amino-4-hydroxybenzoic acid is an endogenous metabolite.

   

FA 11:1

((1S,2R)-2-Hexylcycloprop-1-yl)acetic acid

C11H20O2 (184.14632200000003)


An undecenoic acid having its double bond in the 10-position. It is derived from castor oil and is used for the treatment of skin problems. D - Dermatologicals > D01 - Antifungals for dermatological use > D01A - Antifungals for topical use C254 - Anti-Infective Agent > C514 - Antifungal Agent Same as: D02159 10-Undecenoic acid is used as a starting agent in the synthesis of Pheromone (11Z)-hexadecenal. 10-Undecenoic acid is used as a starting agent in the synthesis of Pheromone (11Z)-hexadecenal.

   

Methylenedioxycinnamic acid

(2E)-3-(1,3-BENZODIOXOL-5-YL)-2-PROPENOIC ACID

C10H8O4 (192.0422568)


(E)-3,4-(Methylenedioxy)cinnamic acid is a cinnamic acid derivative obtained from the stem bark of Brombya platynema[1]. 3,4-Methylenedioxycinnamic acid is an inhibitor of the phenylpropanoid enzyme 4-hydroxycinnamoyl-CoA ligase. 3,4-Methylenedioxycinnamic acid increases the formation of soluble phenolics in particular of vanillic acid[1].

   

2,5-Furandicarboxylic acid

Furane-alpha,alpha-dicarboxylic acid

C6H4O5 (156.00587339999998)


2,5-Furandicarboxylic acid is a normal urinary metabolite in humans. (PMID:14708889, 8087979, 2338430, 3711221). Dietary studies show that the furan derivatives or their precursors are of exogenous origin. They are originated from furan derivatives found in food prepared by strong heating. This may explain the absence of 2,5-furandicarboxylic acid in urine of breastfed children, and the absence of these acids in the urine of rats, pigs, cows, oxs, rabbits, and monkeys (PMID 4630229). 2,5-Furandicarboxylic acid is also a microbial metabolite, a product of the oxidation of hydroxymethylfurfural (HMF) by the enzyme furfural/HMF oxidoreductase which is found in the bacterium Cupriavidus basilensis. Cupriavidus basilensis is a gram-negative soil bacterium of the genus Cupriavidus and the family Burkholderiaceae. 2,5-Furandicarboxylic acid increases with the level of fructose consumed (PMID:20194784). 2,5-Furandicarboxylic acid is a normal urinary metabolite in humans. (PMIDs 14708889, 8087979, 2338430, 3711221) 2,5-Furandicarboxylic acid, detected in human urine, is an important renewable biotechnological building block because it serves as an environmentally friendly substitute for terephthalic acid in the production of polyesters[1].

   

3-Hydroxyisobutyric acid

3-Hydroxy-2-methyl-(S)-propanoic acid

C4H8O3 (104.0473418)


(S)-3-Hydroxyisobutyric acid (3-HIBA) (CAS: 2068-83-9) is an organic acid. 3-HIBA is an intermediate in L-valine metabolism. 3-HIBA plays an important role in the diagnosis of the very rare inherited metabolic diseases 3-hydroxyisobutyric aciduria (OMIM: 236795) and methylmalonic semialdehyde dehydrogenase deficiency (OMIM: 603178). Patients with 3-hydroxyisobutyric aciduria excrete a significant amount of 3-HIBA not only during the acute stage but also when stable. 3-Hydroxyisobutyric aciduria is caused by a 3-hydroxyisobutyryl-CoA dehydrogenase deficiency (PMID: 18329219). The severity of this disease varies from case to case. Most patients exhibit dysmorphic features, such as a small triangular face, a long philtrum, low set ears, and micrognathia (PMID: 10686279). Lactic acidemia is also found in the affected patients, indicating that mitochondrial dysfunction is involved. 3-HIBA appears to specifically inhibit the function of the respiratory chain complex I-III and mitochondrial creatine kinase (PMID: 18329219). BioTransformer predicts that 3-HIBA is a product of 2-methylpropanoic acid metabolism via a hydroxylation-of-terminal-methyl reaction catalyzed by CYP2B6 and CYP2E1 enzymes (PMID: 30612223). (S)-3-Hydroxyisobutyric (3-HIBA) acid is an organic acid. 3-HIBA is an intermediate in the metabolic pathways of L-valine and L-thymine amino acids. 3-HIBA plays an important role in the diagnosis of the very rare inherited metabolic diseases 3-hydroxyisobutyric aciduria (OMIM 236795) and methylmalonic semialdehyde dehydrogenase deficiency (OMIM 603178). Patients with 3-hydroxyisobutyric aciduria excrete a significant amount of 3-HIBA not only during the acute stage but also when stable. The deficient enzyme in 3HiB-uria remains unclear. The severity of this disease varies from case to case. Most patients exhibit dysmorphic features, such as a small triangular face, a long philtrum, low set ears and micrognathia (PMID: 113770040, 10686279) [HMDB] 3-Hydroxyisobutyric acid is an important interorgan metabolite, an intermediate in the pathways of l-valine and thymine and a good gluconeogenic substrate.

   

(S)-3-Hydroxybutyric acid

(S)-3-Hydroxy-2-methyl-propanoic acid

C4H8O3 (104.0473418)


(S)-3-Hydroxybutyric acid is a normal human metabolite that has been found elevated in geriatric patients remitting from depression (PMID: 17048218). 3-Hydroxybutyric acid is a ketone body. Like the other ketone bodies (acetoacetate and acetone), levels of 3-hydroxybutyric acid are raised in ketosis. In humans, 3-hydroxybutyric acid is synthesized in the liver from acetyl-CoA, and can be used as an energy source by the brain when blood glucose is low. (S)-3-Hydroxybutyric acid is a normal human metabolite, that has been found elevated in geriatric patients remitting from depression. (PMID 17048218) (S)-3-Hydroxybutanoic acid is a normal human metabolite, that has been found elevated in geriatric patients remitting from depression. In humans, 3-Hydroxybutyric acid is synthesized in the liver from acetyl-CoA, and can be used as an energy source by the brain when blood glucose is low.

   

4-Aminohippuric acid

2-[(4-aminophenyl)formamido]acetic acid

C9H10N2O3 (194.069139)


4-Aminohippuric acid is an acyl glycine. Acyl glycines are normally minor metabolites of fatty acids. However, the excretion of certain acyl glycines is increased in several inborn errors of metabolism. In certain cases the measurement of these metabolites in body fluids can be used to diagnose disorders associated with mitochondrial fatty acid beta-oxidation. Acyl glycines are produced through the action of glycine N-acyltransferase (EC 2.3.1.13) which is an enzyme that catalyzes the chemical reaction:. acyl-CoA + glycine < -- > CoA + N-acylglycine. Renal proximal tubules secrete various organic anions, including drugs and p-aminohippurate (PAH). Uptake of PAH from blood into tubule cells occurs by exchange with intracellular alpha-ketoglutarate and is mediated by the organic anion transporter 1. PAH exit into tubule lumen is species specific and may involve ATP-independent and -dependent transporters. (PMID 11443229). Enhanced secretion of p-aminohippuric acid occurs in Fanconis syndrome (FS). FS is associated with numerous varieties of inherited and acquired conditions; FS is characterized by a generalized transport defect in the proximal tubules, leading to renal losses of glucose, phosphate, calcium, uric acid, amino acids, bicarbonates, and other organic compounds. (PMID 12552490). 4-Aminohippuric acid is an acyl glycine. Acyl glycines are normally minor metabolites of fatty acids. However, the excretion of certain acyl glycines is increased in several inborn errors of metabolism. In certain cases the measurement of these metabolites in body fluids can be used to diagnose disorders associated with mitochondrial fatty acid beta-oxidation. Acyl glycines are produced through the action of glycine N-acyltransferase (EC 2.3.1.13) which is an enzyme that catalyzes the chemical reaction: V - Various > V04 - Diagnostic agents > V04C - Other diagnostic agents > V04CH - Tests for renal function and ureteral injuries D019995 - Laboratory Chemicals > D007202 - Indicators and Reagents 4-Aminohippuric acid is a diagnostic agent used in renal testing and is used in the determination of renal plasma flow.

   

D-Proline

(2R)-Pyrrolidine-2-carboxylic acid

C5H9NO2 (115.0633254)


D-proline is an isomer of the naturally occurring amino acid, L-Proline. D-amino acids have been found in relatively high abundance in human plasma and saliva (PMID: 16480744). These amino acids may be of bacterial origin, but there is also evidence that they are endogenously produced through amino acid racemase activity. (PMID: 1426150) [HMDB] D-proline is an isomer of the naturally occurring amino acid, L-Proline. D-amino acids have been found in relatively high abundance in human plasma and saliva (PMID: 16480744). These amino acids may be of bacterial origin, but there is also evidence that they are endogenously produced through amino acid racemase activity (PMID: 1426150). (R)-pyrrolidine-2-carboxylic acid is an endogenous metabolite. (R)-pyrrolidine-2-carboxylic acid is an endogenous metabolite.

   

3-Aminoisobutanoic acid

3-Aminoisobutyric acid, tritium-labeled

C4H9NO2 (103.0633254)


3-Aminoisobutanoic acid, also known as b-aminoisobutyrate or 2-methyl-beta-alanine, belongs to the class of organic compounds known as beta amino acids and derivatives. These are amino acids having a (-NH2) group attached to the beta carbon atom. 3-Aminoisobutanoic acid is a very hydrophobic molecule, practically insoluble in water, and relatively neutral. 3-Aminoisobutanoic acid exists in all eukaryotes, ranging from yeast to humans. 3-aminoisobutanoic acid can be biosynthesized from ureidoisobutyric acid; which is mediated by the enzyme Beta-ureidopropionase. In humans, 3-aminoisobutanoic acid is involved in the metabolic disorder called the beta-ureidopropionase deficiency pathway. Beta-ureidopropionase deficiency is an inborn error of pyrimidine degradation associated with neurological abnormalities (OMIM 606673). 3-Aminoisobutanoic acid is a potentially toxic compound. beta-aminoisobutyric acid is the product from the conversion of N-carbamyl-beta-aminoisobutyric acid by the enzyme Beta-ureidopropionase (EC 3.5.1.6), the last step in pyrimidine degradation. Beta-ureidopropionase deficiency is an inborn error of pyrimidine degradation associated with neurological abnormalities (OMIM 606673) [HMDB] β-Aminoisobutyric acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=144-90-1 (retrieved 2024-07-16) (CAS RN: 144-90-1). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). 3-Amino-2-methylpropanoic acid could induce browning of white fat and hepatic β-oxidation and is inversely correlated with cardiometabolic risk factors.

   

D-Aspartic acid

(2R)-2-Aminobutanedioic acid

C4H7NO4 (133.0375062)


D-Aspartic acid is the D-isomer of aspartic acid. Since its discovery in invertebrates, free D-aspartate (D-Asp) has been identified in a variety of organisms, including microorganisms, plants, and lower animals, mammals and humans. D-Asp in mammalian tissues is present in specific cells, indicating the existence of specific molecular components that regulate D-Asp levels and localization in tissues. In the rat adrenal medulla, D-Asp is closely associated with adrenaline-cells (A-cells), which account for approximately 80\\\\\\% of the total number of chromaffin cells in the tissue, and which make and store adrenaline. D-Asp appears to be absent from noradrenaline-cells (NA-cells), which comprise approximately 20\\\\\\% of the total number of chromaffin cells in the adrenal medulla, and which make and store noradrenaline. D-aspartate oxidase (EC 1.4.3.1, D-AspO), which catalyzes oxidative deamination of D-Asp, appears to be present only in NA-cells, suggesting that the lack of D-Asp in these cells is due to D-Asp oxidase-mediated metabolism of D-Aspecies In the rat adrenal cortex, the distribution of D-Asp changes during development. It has been suggested that developmental changes in the localization of D-Asp reflects the participation of D-Asp in the development and maturation of steroidogenesis in rat adrenal cortical cells. D-Asp is involved in steroid hormone synthesis and secretion in mammals as well. D-Asp is synthesized intracellularly, most likely by Asp racemase (EC 5.1.1.13). Endogenous D-Asp apparently has two different intracellular localization patterns: cytoplasmic and vesicular. D-Asp release can occur through three distinct pathways: 1) spontaneous, continuous release of cytoplasmic D-Asp, which is not associated with a specific stimulus; 2) release of cytoplasmic D-Asp via a volume-sensitive organic anion channel that connects the cytoplasm and extracellular space; 3) exocytotic discharge of vesicular D-Aspecies D-Asp can be released via a mechanism that involves the L-Glu transporter. D-Asp is thus apparently in dynamic flux at the cellular level to carry out its physiological function(s) in mammals. (PMID: 16755369) [HMDB] D-Aspartic acid is the D-isomer of aspartic acid. Since its discovery in invertebrates, free D-aspartate (D-Asp) has been identified in a variety of organisms, including microorganisms, plants, and lower animals, mammals and humans. D-Asp in mammalian tissues is present in specific cells, indicating the existence of specific molecular components that regulate D-Asp levels and localization in tissues. In the rat adrenal medulla, D-Asp is closely associated with adrenaline-cells (A-cells), which account for approximately 80\\\\\\% of the total number of chromaffin cells in the tissue, and which make and store adrenaline. D-Asp appears to be absent from noradrenaline-cells (NA-cells), which comprise approximately 20\\\\\\% of the total number of chromaffin cells in the adrenal medulla, and which make and store noradrenaline. D-aspartate oxidase (EC 1.4.3.1, D-AspO), which catalyzes oxidative deamination of D-Asp, appears to be present only in NA-cells, suggesting that the lack of D-Asp in these cells is due to D-Asp oxidase-mediated metabolism of D-Asp. In the rat adrenal cortex, the distribution of D-Asp changes during development. It has been suggested that developmental changes in the localization of D-Asp reflects the participation of D-Asp in the development and maturation of steroidogenesis in rat adrenal cortical cells. D-Asp is involved in steroid hormone synthesis and secretion in mammals as well. D-Asp is synthesized intracellularly, most likely by Asp racemase (EC 5.1.1.13). Endogenous D-Asp apparently has two different intracellular localization patterns: cytoplasmic and vesicular. D-Asp release can occur through three distinct pathways: 1) spontaneous, continuous release of cytoplasmic D-Asp, which is not associated with a specific stimulus; 2) release of cytoplasmic D-Asp via a volume-sensitive organic anion channel that connects the cytoplasm and extracellular space; 3) exocytotic discharge of vesicular D-Asp. D-Asp can be released via a mechanism that involves the L-Glu transporter. D-Asp is thus apparently in dynamic flux at the cellular level to carry out its physiological function(s) in mammals (PMID:16755369). (-)-Aspartic acid is an endogenous NMDA receptor agonist. (-)-Aspartic acid is an endogenous NMDA receptor agonist. (-)-Aspartic acid is an endogenous NMDA receptor agonist. (-)-Aspartic acid is an endogenous NMDA receptor agonist.

   

Isomenthone

(2S-cis)-5-Methyl-2-(1-methylethyl)cyclohexanone

C10H18O (154.1357578)


Isomenthone (CAS: 491-07-6) is a flavouring ingredient and is found in many foods, including blackcurrant, orange mint, peppermint, and spearmint. (+)-Isomenthone is found in American pennyroyal oil (Hedeoma pulegioides), Mentha arvensis, Pelargonium tomentosum, and other essential oils. (-)-Isomenthone is found in cornmint, the oil of Mentha pulegium, and herbs and spices. Isolated from oils of Mentha arvensis, Mentha pulegium, Hedeoma pulegioides and others. (-)-Isomenthone is found in cornmint, spearmint, and herbs and spices. (+)-Isomenthone is an isomenthone isolated from Ziziphora clinopodioides Lam.. (+)-Isomenthone is an isomer of L-Menthone[1][2]. (+)-Isomenthone is an isomenthone isolated from Ziziphora clinopodioides Lam.. (+)-Isomenthone is an isomer of L-Menthone[1][2]. (+)-Isomenthone is an isomenthone isolated from Ziziphora clinopodioides Lam.. (+)-Isomenthone is an isomer of L-Menthone[1][2]. (+)-Isomenthone is an isomenthone isolated from Ziziphora clinopodioides Lam.. (+)-Isomenthone is an isomer of L-Menthone[1][2].

   

D-Kynurenine

(2R)-6-methoxy-2-phenyl-2,3-dihydrochromen-4-one

C10H12N2O3 (208.0847882)


Kynurenine, also known as 3-anthraniloylalanine, is a member of the class of compounds known as alkyl-phenylketones. Alkyl-phenylketones are aromatic compounds containing a ketone substituted by one alkyl group, and a phenyl group. Kynurenine is slightly soluble (in water) and a moderately acidic compound (based on its pKa). Kynurenine can be found in a number of food items such as yellow zucchini, carrot, spinach, and broccoli, which makes kynurenine a potential biomarker for the consumption of these food products. Kynurenine is synthesized by the enzyme tryptophan dioxygenase, which is made primarily but not exclusively in the liver, and indoleamine 2,3-dioxygenase, which is made in many tissues in response to immune activation. Kynurenine and its further breakdown products carry out diverse biological functions, including dilating blood vessels during inflammation and regulating the immune response. Some cancers increase kynurenine production, which increases tumor growth . 2-Amino-4-(2-aminophenyl)-4-oxobutanoic acid is an endogenous metabolite.

   

DL-Proline

Pyrrolidine-2-carboxylic acid

C5H9NO2 (115.0633254)


Proline, also known as dl-proline or hpro, belongs to proline and derivatives class of compounds. Those are compounds containing proline or a derivative thereof resulting from reaction of proline at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom. Proline is soluble (in water) and a moderately acidic compound (based on its pKa). Proline can be found in a number of food items such as yellow zucchini, swiss chard, spinach, and cucumber, which makes proline a potential biomarker for the consumption of these food products. Proline (abbreviated as Pro or P; encoded by the codons CCU, CCC, CCA, and CCG) is an amino acid that is used in the biosynthesis of proteins. It contains an α-amino group (which is in the protonated NH2+ form under biological conditions), an α-carboxylic acid group (which is in the deprotonated −COO− form under biological conditions), and a side chain pyrrolidine, classifying it as a nonpolar (at physiological pH), aliphatic amino acid. It is non-essential in humans, meaning the body can synthesize it from the non-essential amino acid L-glutamate . CONFIDENCE standard compound; ML_ID 53 (R)-pyrrolidine-2-carboxylic acid is an endogenous metabolite. (R)-pyrrolidine-2-carboxylic acid is an endogenous metabolite.

   

3-Indolepropionic acid

Indole-3-propionic acid

C11H11NO2 (189.0789746)


3-Indolepropionic acid is shown to be a powerful antioxidant and has potential in the treatment for Alzheimer’s disease.

   

DL-Homocystine

4,4-Dithiobis[2-aminobutyric Acid]

C8H16N2O4S2 (268.0551456)


4,4'-Disulfanediylbis(2-aminobutanoic acid) is an endogenous metabolite. DL-Homocystine is the double-bonded form of homocysteine and homocysteine is recognized as an important substance in the pathogenesis and pathophysiology of schizophrenia.

   

2-Oxo-3-methylvalerate

(+-)-3-Methyl-2-oxovaleric acid sodium salt

C6H10O3 (130.062991)


CONFIDENCE standard compound; ML_ID 14 3-Methyl-2-oxovaleric acid is a neurotoxin, an acidogen, and a metabotoxin, and also an abnormal metabolite that arises from the incomplete breakdown of branched-chain amino acids.

   

D-Pyroglutamate

(R)-(+)-2-Pyrrolidone-5-carboxylic acid

C5H7NO3 (129.0425912)


KEIO_ID P092 (R)-5-Oxopyrrolidine-2-carboxylic acid is an endogenous metabolite.

   

undecylenic acid

10-hendecenoic acid

C11H20O2 (184.14632200000003)


10-Undecenoic acid is used as a starting agent in the synthesis of Pheromone (11Z)-hexadecenal. 10-Undecenoic acid is used as a starting agent in the synthesis of Pheromone (11Z)-hexadecenal.

   

iso-Mentone

(±)-Isomenthone

C10H18O (154.1357578)


Flavouring ingredient. (±)-Isomenthone is found in many foods, some of which are blackcurrant, orange mint, peppermint, and spearmint. (+)-Isomenthone is an isomenthone isolated from Ziziphora clinopodioides Lam.. (+)-Isomenthone is an isomer of L-Menthone[1][2]. (+)-Isomenthone is an isomenthone isolated from Ziziphora clinopodioides Lam.. (+)-Isomenthone is an isomer of L-Menthone[1][2]. (+)-Isomenthone is an isomenthone isolated from Ziziphora clinopodioides Lam.. (+)-Isomenthone is an isomer of L-Menthone[1][2]. (+)-Isomenthone is an isomenthone isolated from Ziziphora clinopodioides Lam.. (+)-Isomenthone is an isomer of L-Menthone[1][2].

   

1-Hydroxy-2-butanone

1-Hydroxy-2-butanone

C4H8O2 (88.0524268)


1-Hydroxy-2-butanone is a natural compound isolated from Bomboo Juice with antitubercular activity[1]. 1-Hydroxy-2-butanone is a natural compound isolated from Bomboo Juice with antitubercular activity[1].

   

3-Hydroxyvaleric acid

3-Hydroxypentanoic acid

C5H10O3 (118.06299100000001)


3-Hydroxyvaleric acid is a 5-carbon ketone body. 3-Hydroxyvaleric acid is anaplerotic, meaning it can refill the pool of TCA cycle intermediates.

   

2-Hydroxyhexanoic acid

Hexanoic acid,2-hydroxy-

C6H12O3 (132.0786402)


A hydroxy fatty acid that is caproic (hexanoic) acid substituted by a hydroxy group at position 2. 2-Hydroxyhexanoic acid is an endogenous metabolite.

   

4-Aminohippuric acid

Aminohippuric acid (USP)

C9H10N2O3 (194.069139)


ATC code: V04CH30 4-Aminohippuric acid is a diagnostic agent used in renal testing and is used in the determination of renal plasma flow.

   

Homoveratric acid

InChI=1/C10H12O4/c1-13-8-4-3-7(6-10(11)12)5-9(8)14-2/h3-5H,6H2,1-2H3,(H,11,12

C10H12O4 (196.0735552)


Homoveratric acid is the main metabolite of 3,4-dimethoxyphenylethylamine (DMPEA) in urine. It has been suggested that DMPEA and other amines are in higher concentrations in drug-free schizophrenics than in normal subjects. DMPEA is a the di-methylated metabolite of L-DOPA, the major treatment for Parkinsons disease (PD). (PMID 7059639, 14311254, 588645, 10834300). Homoveratric acid is found in olive. Homoveratric acid is the main metabolite of 3,4-dimethoxyphenylethylamine (DMPEA) in urine. It has been suggested that DMPEA and other amines are in higher concentrations in drug-free schizophrenics than in normal subjects. DMPEA is a the di-methylated metabolite of L-DOPA, the major treatment for Parkinsons disease (PD). (PMID 7059639, 14311254, 588645, 10834300). Homoveratric acid is a phenylacetic acid substituted at positions 3 and 4 by methoxy groups. It has a role as a human urinary metabolite and a human xenobiotic metabolite. It is a dimethoxybenzene and a member of phenylacetic acids. Homoveratric acid is a natural product found in Olea europaea and Zingiber officinale with data available. A phenylacetic acid substituted at positions 3 and 4 by methoxy groups. 3,4-Dimethoxyphenylacetic acid is a building block in the chemical synthesis. 3,4-Dimethoxyphenylacetic acid is a building block in the chemical synthesis.

   

Eudesmic acid

Trimebutine Imp. B (EP); Trimethoprim Imp. J (EP); 3,4,5-Trimethoxybenzoic Acid; Trimebutine Maleate Impurity B; Trimethoprim Impurity J

C10H12O5 (212.06847019999998)


3,4,5-trimethoxybenzoic acid is a benzoic acid derivative carrying 3-, 4- and 5-methoxy substituents. It has a role as a plant metabolite, a human xenobiotic metabolite and a human urinary metabolite. It is a member of benzoic acids and a member of methoxybenzenes. It is functionally related to a benzoic acid. It is a conjugate acid of a 3,4,5-trimethoxybenzoate. 3,4,5-Trimethoxybenzoic acid is a natural product found in Verbesina myriocephala, Engelhardia roxburghiana, and other organisms with data available. Eudesmic acid is found in olive. Eudesmic acid is isolated from eucalyptus oil etc. A benzoic acid derivative carrying 3-, 4- and 5-methoxy substituents. Isolated from eucalyptus oil etc. Eudesmic acid is found in olive. 3,4,5-Trimethoxybenzoic acid (Eudesmic acid;Trimethylgallic Acid) is a benzoic acid derivative. A building block in medicine and organic synthesis. 3,4,5-Trimethoxybenzoic acid (Eudesmic acid;Trimethylgallic Acid) is a benzoic acid derivative. A building block in medicine and organic synthesis.

   

4,5-Di-O-caffeoylquinic acid

Cyclohexanecarboxylic acid, 3,4-bis(((2E)-3-(3,4-dihydroxyphenyl)-1-oxo-2-propen-1-yl)oxy)-1,5-dihydroxy-, (1R,3R,4S,5R)-

C25H24O12 (516.1267703999999)


4,5-di-O-caffeoylquinic acid is a quinic acid. 4,5-Dicaffeoylquinic acid is a natural product found in Centaurea bracteata, Strychnos axillaris, and other organisms with data available. See also: Lonicera japonica flower (part of); Stevia rebaudiuna Leaf (part of). Isolated from coffee, Brazilian propolis and maté. 4,5-Di-O-caffeoylquinic acid is found in many foods, some of which are carrot, robusta coffee, coffee, and coffee and coffee products. 4,5-Di-O-caffeoylquinic acid is found in arabica coffee. 4,5-Di-O-caffeoylquinic acid is isolated from coffee and Brazilian propoli 3,4-Dicaffeoylquinic acid (3,4-Di-O-caffeoylquinic acid), naturally isolated from Laggera alata, has antioxidative, DNA protective, neuroprotective and hepatoprotective properties. 3,4-Dicaffeoylquinic acid exerts apoptosis-mediated cytotoxicity and α-glucosidase inhibitory effects. 3,4-Dicaffeoylquinic acid possesses a unique mechanism of anti-influenza viral activity, that is, enhancing viral clearance by increasing TRAIL[1][2][3]. 3,4-Dicaffeoylquinic acid (3,4-Di-O-caffeoylquinic acid), naturally isolated from Laggera alata, has antioxidative, DNA protective, neuroprotective and hepatoprotective properties. 3,4-Dicaffeoylquinic acid exerts apoptosis-mediated cytotoxicity and α-glucosidase inhibitory effects. 3,4-Dicaffeoylquinic acid possesses a unique mechanism of anti-influenza viral activity, that is, enhancing viral clearance by increasing TRAIL[1][2][3]. 4,5-Dicaffeoylquinic acid (Isochlorogenic acid C) is an antioxidant, can be isolated from Gynura divaricata and Laggera alata. 4,5-Dicaffeoylquinic acid reduces islet cell apoptosis and improves pancreatic function in type 2 diabetic mice, and has obvious inhibitory activities against yeast α-glucosidase. 4,5-Dicaffeoylquinic acid inhibits prostate cancer cells through cell cycle arrest. 4,5-Dicaffeoylquinic acid also has anti-apoptotic, anti-injury and anti-hepatitis B virus effects[1][2][3]. 4,5-Dicaffeoylquinic acid (Isochlorogenic acid C) is an antioxidant, can be isolated from Gynura divaricata and Laggera alata. 4,5-Dicaffeoylquinic acid reduces islet cell apoptosis and improves pancreatic function in type 2 diabetic mice, and has obvious inhibitory activities against yeast α-glucosidase. 4,5-Dicaffeoylquinic acid inhibits prostate cancer cells through cell cycle arrest. 4,5-Dicaffeoylquinic acid also has anti-apoptotic, anti-injury and anti-hepatitis B virus effects[1][2][3].

   

4-Methoxyphenylacetic acid

InChI=1/C9H10O3/c1-12-8-4-2-7(3-5-8)6-9(10)11/h2-5H,6H2,1H3,(H,10,11

C9H10O3 (166.062991)


4-methoxyphenylacetic acid is a monocarboxylic acid that is phenylacetic acid carrying a 4-methoxy substituent. It is used as an intermediate for pharmaceuticals and other organic synthesis. It has been found to inhibit the germination of cress and lettuce seeds. It has a role as a plant metabolite, a plant growth retardant and an Aspergillus metabolite. It is a monocarboxylic acid and a monomethoxybenzene. 4-Methoxyphenylacetic acid, also known as 4-methoxybenzeneacetate or 2-(p-anisyl)acetic acid, belongs to the class of organic compounds known as anisoles. These are organic compounds containing a methoxybenzene or a derivative thereof. 4-Methoxyphenylacetic acid is a 4-O-Methylated catecholamine metabolite found in normal human urine, cerebrospinal fluid and brain tissue. 4-methoxyphenylacetic acid appears as pale yellow or off white colored flakes. Severely irritates skin and eyes. May be toxic by ingestion. 4-methoxyphenylacetic acid is a monocarboxylic acid that is phenylacetic acid carrying a 4-methoxy substituent. It is used as an intermediate for pharmaceuticals and other organic synthesis. It has been found to inhibit the germination of cress and lettuce seeds. It has a role as a plant metabolite, a plant growth retardant and an Aspergillus metabolite. It is a monocarboxylic acid and a monomethoxybenzene. 4-Methoxyphenylacetic acid is a natural product found in Gloeophyllum odoratum, Berberis koreana, and other organisms with data available. A monocarboxylic acid that is phenylacetic acid carrying a 4-methoxy substituent. It is used as an intermediate for pharmaceuticals and other organic synthesis. It has been found to inhibit the germination of cress and lettuce seeds. 4-Methoxyphenylacetic acid is a 4-O-Methylated catecholamine metabolite found in normal human urine, cerebrospinal fluid and brain tissue. (PMIDs 6511847, 4645252, 12416886) [HMDB] 2-(4-Methoxyphenyl)acetic acid is a plasma metabolite, with high sensitivity and specificity value as a biomarker for discriminating between NSCLC and healthy controls. 2-(4-Methoxyphenyl)acetic acid is a plasma metabolite, with high sensitivity and specificity value as a biomarker for discriminating between NSCLC and healthy controls.

   

Alliin

(2R)-2-Amino-3-(prop-2-ene-1-sulphinyl)propanoic acid

C6H11NO3S (177.0459616)


Alliin, also known as (S)-S-allyl-L-cysteine sulfoxide or (S)-3-(allylsulphinyl)-L-alanine, is a member of the class of compounds known as L-alpha-amino acids. L-alpha-amino acids are alpha amino acids which have the L-configuration of the alpha-carbon atom. Alliin is soluble (in water) and a moderately acidic compound (based on its pKa). Alliin can be found in a number of food items such as red rice, mandarin orange (clementine, tangerine), ceylon cinnamon, and olive, which makes alliin a potential biomarker for the consumption of these food products. Garlic has been used since antiquity as a therapeutic remedy for certain conditions now associated with oxygen toxicity, and, when this was investigated, garlic did indeed show strong antioxidant and hydroxyl radical-scavenging properties, it is presumed owing to the alliin contained within. Alliin has also been found to affect immune responses in blood . 3-(Allylsulphinyl)-L-alanine is a L-alpha-amino acid. Alliin. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=556-27-4 (retrieved 2024-07-01) (CAS RN: 556-27-4). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). (±)-Alliin is the main active component of garlic. (±)-Alliin is a putative inhibitor of the main protease of SARS-CoV-2 (Mpro)[1]. Alliin, an orally active sulfoxide compound derived from garlic, exhibits hypoglycemic, antioxidant and anti-inflammatory activities[1][2]. Alliin, an orally active sulfoxide compound derived from garlic, exhibits hypoglycemic, antioxidant and anti-inflammatory activities[1][2].

   

2,6-Dimethoxybenzoic acid

InChI=1/C9H10O4/c1-12-6-4-3-5-7(13-2)8(6)9(10)11/h3-5H,1-2H3,(H,10,11

C9H10O4 (182.057906)


2,6-Dimethoxybenzoic acid is a member of benzenes and a carbonyl compound. 2,6-Dimethoxybenzoic acid is a natural product found in Dianthus caryophyllus, Curculigo orchioides, and Molineria capitulata with data available. 2,6-Dimethoxybenzoic acid is a polyphenol compound found in foods of plant origin (PMID: 20428313) 2,6-Dimethoxybenzoic acid is a member of organic compounds known as o-methoxybenzoic acids and derivatives. 2,6-Dimethoxybenzoic acid is a member of organic compounds known as o-methoxybenzoic acids and derivatives.

   

13-Methylmyristic acid

13-Methylmyristic acid, >=98\\% (capillary GC)

C15H30O2 (242.224568)


Isopentadecanoic acid is a branched-chain saturated fatty acid comprising tetradecanoic (myristic) acid substituted at position 13 by a methyl group. It is a long-chain fatty acid, a branched-chain saturated fatty acid and a methyl-branched fatty acid. It is a conjugate acid of an isopentadecanoate. 13-Methyltetradecanoic acid is a natural product found in Streptomyces manipurensis, Myrmekioderma rea, and other organisms with data available. 13-Methyltetradecanoic Acid is a branched-chain saturated fatty acid that is comprised of tetradecanoic acid with a methyl group on the carbon in the thirteenth position. 13-Methylmyristic acid (CAS# 2485-71-4), also known as 13-methyltetradecanoic acid, iso-pentadecanoic acid, 13-methyltetradecanoic acid, 13-MTD, or 13-MTDA, is an iso-fatty acid. It is used to study the induction of mitochondrial-mediated apoptosis via the AKT and MAPK pathways. 13-MTDA is used for the biosynthesis of methyl-branched polyhydroxyalkanoates A branched-chain saturated fatty acid comprising tetradecanoic (myristic) acid substituted at position 13 by a methyl group. 13-Methyltetradecanoic acid (13-MTD), a saturated branched-chain fatty acid with potent anticancer effects. 13-Methyltetradecanoic acid induces apoptosis in many types of human cancer cells[1][2]. 13-Methyltetradecanoic acid (13-MTD), a saturated branched-chain fatty acid with potent anticancer effects. 13-Methyltetradecanoic acid induces apoptosis in many types of human cancer cells[1][2].

   

2-Methoxybenzaldehyde

o-Anisaldehyde, United States Pharmacopeia (USP) Reference Standard

C8H8O2 (136.0524268)


2-Methoxybenzaldehyde is found in Chinese cinnamon. 2-Methoxybenzaldehyde is present in cinnamon (Cinnamomum zeylanicum). 2-Methoxybenzaldehyde is a flavouring ingredient. Anisaldehyde, or anisic aldehyde, is an organic compound that consists of a benzene ring substituted with an aldehyde and a methoxy group. It is a clear colorless liquid with a strong aroma. It comes in 3 varieties, ortho, meta, and para in which the two functional groups (methoxy and aldehyde) are alpha, beta, and gamma, respectively to each other. The unmodified term anisaldehyde generally refers to the para isomer. Anisaldehyde is found in anise, from which it gets its name. It is similar in structure to vanillin. (Wikipedia). Present in cinnamon (Cinnamomum zeylanicum). Flavouring ingredient 2-Methoxybenzaldehyde is a carbonyl compound. 2-Methoxybenzaldehyde (o-Anisaldehyde), isolated from cinnamon essential oil (CEO), exists antibacterial and antifungal activity[1]. 2-Methoxybenzaldehyde (o-Anisaldehyde), isolated from cinnamon essential oil (CEO), exists antibacterial and antifungal activity[1].

   

3-(3,4-Dimethoxyphenyl)-2-propenoic acid

InChI=1/C11H12O4/c1-14-9-5-3-8(4-6-11(12)13)7-10(9)15-2/h3-7H,1-2H3,(H,12,13)/b6-4

C11H12O4 (208.0735552)


3,4-dimethoxycinnamic acid is a methoxycinnamic acid that is trans-cinnamic acid substituted by methoxy groups at positions 3 and 4 respectively. It is functionally related to a trans-cinnamic acid. 3,4-Dimethoxycinnamic acid is a natural product found in Sibiraea angustata, Verbesina gigantea, and other organisms with data available. 3-(3,4-Dimethoxyphenyl)-2-propenoic acid is found in beverages. 3-(3,4-Dimethoxyphenyl)-2-propenoic acid is found in kava (Piper methysticum). FDA advises against use of kava in food due to potential risk of severe liver damage (2002 Found in kava (Piper methysticum). FDA advises against use of kava in food due to potential risk of severe liver damage (2002) (E)-3,4-Dimethoxycinnamic acid is the less active isomer of 3,4-Dimethoxycinnamic acid. 3,4-Dimethoxycinnamic acid exerts anti-apoptotic effects on L-02 cells via the ROS-mediated signaling pathway[1]. Anti-apoptotic effects[1]. (E)-3,4-Dimethoxycinnamic acid is the less active isomer of 3,4-Dimethoxycinnamic acid. 3,4-Dimethoxycinnamic acid exerts anti-apoptotic effects on L-02 cells via the ROS-mediated signaling pathway[1]. Anti-apoptotic effects[1]. 3,4-Dimethoxycinnamic acid (O-Methylferulic acid) is a monomer extracted and purified from Securidaca inappendiculata Hassk. 3,4-Dimethoxycinnamic acid exerts anti-apoptotic effects on L-02 cells via the ROS-mediated signaling pathway[1]. Anti-apoptotic effects[1]. 3,4-Dimethoxycinnamic acid (O-Methylferulic acid) is a monomer extracted and purified from Securidaca inappendiculata Hassk. 3,4-Dimethoxycinnamic acid exerts anti-apoptotic effects on L-02 cells via the ROS-mediated signaling pathway[1]. Anti-apoptotic effects[1].

   

2-Ethylbutanoic acid

InChI=1/C6H12O2/c1-3-5(4-2)6(7)8/h5H,3-4H2,1-2H3,(H,7,8

C6H12O2 (116.08372519999999)


2-Ethylbutanoic acid is a branched-chain fatty acid. 2-Ethylbutyric acid is a natural product found in Nicotiana tabacum and Pelargonium graveolens with data available. 2-Ethylbutanoic acid occurs in bread crusts and geranium oil. Also found in tobacco vapour Occurs in bread crusts and geranium oiland is also found in tobacco vapours. 2-Ethylbutyric acid acts as an internal standard (IS) in a standard addition calibration method for the VFA analysis of faeces[1].

   

2-Tridecanone

Dimethoxy methyldopa hydrochloride(DMMD)

C13H26O (198.1983546)


2-tridecanone is a white crystalline solid. (NTP, 1992) Tridecan-2-one is a methyl ketone that is tridecane in which the methylene hydrogens at position 2 are replaced by an oxo group. It has a role as a plant metabolite and a flavouring agent. It derives from a hydride of a tridecane. 2-Tridecanone is a natural product found in Hedychium spicatum, Azadirachta indica, and other organisms with data available. 2-Tridecanone is found in citrus. 2-Tridecanone is isolated from plant oils, e.g. palm oil, coconut oil. Also found in American cranberry, rabbiteye, blueberry, raspberry, grapefruit, onion, ginger and cheeses. 2-Tridecanone is used as a flavouring essence. Isolated from plant oils, e.g. palm oil, coconut oiland is also found in American cranberry, rabbiteye, blueberry, raspberry, grapefruit, onion, ginger and cheeses. It is used as a flavouring essence. A methyl ketone that is tridecane in which the methylene hydrogens at position 2 are replaced by an oxo group. 2-Tridecanone, a nonalkaloid insecticide, is isolated from the wild tomato Lycopersicon hirsutum f. glabratum. 2-Tridecanone is a volatile organic compound[1][2]. 2-Tridecanone, a nonalkaloid insecticide, is isolated from the wild tomato Lycopersicon hirsutum f. glabratum. 2-Tridecanone is a volatile organic compound[1][2].

   

(±)-2-Methylpentanoic acid

4-02-00-00942 (Beilstein Handbook Reference)

C6H12O2 (116.08372519999999)


2-Methylpentanoic acid is a member of the class of compounds known as methyl-branched fatty acids. Methyl-branched fatty acids are fatty acids with an acyl chain that has a methyl branch. Usually, they are saturated and contain only one or more methyl group. However, branches other than methyl may be present. Thus, 2-methyl valeric acid is considered to be a fatty acid lipid molecule. 2-methyl valeric acid is soluble (in water) and a very weakly acidic compound (based on its pKa). 2-Methylpentanoic acid is a cheese and sour tasting compound found in pepper (spice), which makes 2-methylpentanoic acid a potential biomarker for the consumption of this food product. Methyl pentanoate, commonly known as methyl valerate, is the methyl ester of pentanoic acid (valeric acid) with a fruity odor . 2-methylvaleric acid is a methyl-branched fatty acid that is pentanoic acid which carries a methyl group at position 2. It has a role as a flavouring agent, a plant metabolite and a fragrance. It is a branched-chain saturated fatty acid, a methyl-branched fatty acid, a monocarboxylic acid and a short-chain fatty acid. It is a conjugate acid of a 2-methylvalerate. 2-Methylvaleric acid is a natural product found in Pelargonium graveolens with data available. A methyl-branched fatty acid that is pentanoic acid which carries a methyl group at position 2. (±)-2-Methylpentanoic acid is a flavouring ingredien 2-Methylvaleric acid (2-Methylpentanoic acid) is a short-chain fatty acid isolated from Campomanesia adamantium and dairy products. 2-Methylvaleric acid is also found in animal feces. 2-Methylvaleric acid is a flavor compound used for food-flavor ingredient, fragrances[1][2][3].

   

2-Methyltetrahydrofuran-3-one

2-Methyltetrahydrofuran-3-one, natural, 97\\%, FG

C5H8O2 (100.05242679999999)


2-Methyltetrahydrofuran-3-one, also known as coffee furanone, is a member of the class of compounds known as furanones. Furanones are compounds containing a furan ring bearing a ketone group. 2-Methyltetrahydrofuran-3-one is soluble (in water) and an extremely weak acidic compound (based on its pKa). 2-Methyltetrahydrofuran-3-one is a flavouring agent and is a volatile constituent of coffee and coffee products. 2-Methyltetrahydrofuran-3-one is present in many foods. Dihydro-2-methyl-3(2H)-furanone is a member of oxolanes. 2-Methyltetrahydrofuran-3-one is a natural product found in Aloe africana, Mangifera indica, and Nicotiana tabacum with data available. It is used as a food additive . 2-Methyltetrahydrofuran-3-one is one of the volatile constituents of roasted coffee[1]. 2-Methyltetrahydrofuran-3-one is one of the volatile constituents of roasted coffee[1].

   

4-Ethylbenzaldehyde

InChI=1/C9H10O/c1-2-8-3-5-9(7-10)6-4-8/h3-7H,2H2,1H

C9H10O (134.073161)


Present in roasted chicken, cider, tea and roasted peanuts. Flavouring ingredient. 4-Ethylbenzaldehyde is found in many foods, some of which are nuts, alcoholic beverages, tea, and animal foods. 4-Ethylbenzaldehyde is found in alcoholic beverages. 4-Ethylbenzaldehyde is present in roasted chicken, cider, tea and roasted peanuts. 4-Ethylbenzaldehyde is a flavouring ingredien 4-Ethylbenzaldehyde is a carbonyl compound. 4-Ethylbenzaldehyde is a natural product found in Illicium verum, Tanacetum parthenium, and other organisms with data available. 4-Ethylbenzaldehyde is an endogenous metabolite. 4-Ethylbenzaldehyde is an endogenous metabolite.

   

2-Methyl-4-pentenoic acid

InChI=1/C6H10O2/c1-3-4-5(2)6(7)8/h3,5H,1,4H2,2H3,(H,7,8)

C6H10O2 (114.068076)


2-Methyl-4-pentenoic acid is a branched-chain fatty acid. (±)-2-Methyl-4-pentenoic acid is a flavouring ingredien It is used as a food additive . 2-Methyl-4-pentenoic Acid is an organic acid. 2-Methyl-4-pentenoic Acid is an organic acid.

   

2-Thiophenecarboxaldehyde

1H-PYRROLE, 3-(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-1-[TRIS(1-METHYLETHYL)SILYL]-

C5H4OS (111.9982854)


Formylthiophene is an aldehyde that is thiophene substituted by a formyl group at position 2. It has a role as a metabolite. It is a member of thiophenes and an aldehyde. Thiophene-2-carbaldehyde is a natural product found in Coffea arabica, Sergia lucens, and Capparis spinosa with data available. An aldehyde that is thiophene substituted by a formyl group at position 2. 2-Thiophenecarboxaldehyde is a flavour ingredien COVID info from PDB, Protein Data Bank Flavour ingredient Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS 2-Thiophenecarboxaldehyde is an endogenous metabolite.

   

2,3-Pentanedione

4-01-00-03660 (Beilstein Handbook Reference)

C5H8O2 (100.05242679999999)


2,3-Pentanedione, also known as acetyl propionyl or pentan-2,3-dione, belongs to the class of organic compounds known as alpha-diketones. These are organic compounds containing two ketone groups on two adjacent carbon atoms. 2,3-Pentanedione is a sweet, butter, and caramel tasting compound. 2,3-Pentanedione has been detected, but not quantified, in several different foods, such as coffee and coffee products, tamarinds, cauliflowers, green beans, and cereals and cereal products. Pentane-2,3-dione is an alpha-diketone that is pentane substituted at the 2- and 3-positions by oxo groups. It has a role as a flavouring agent. It is an alpha-diketone and a methyl ketone. It derives from a hydride of a pentane. 2,3-Pentanedione is a natural product found in Mangifera indica, Carica papaya, and other organisms with data available. 2,3-pentanedione is a metabolite found in or produced by Saccharomyces cerevisiae. 2,3-Pentanedione is a flavouring ingredient. It is found in many foods, some of which are coffee and coffee products, milk and milk products, tea, and fruits. 2,3-Pentanedione is a common constituent of synthetic flavorings and is used to impart a butter, strawberry, caramel, fruit, rum, or cheese flavor in beverages, ice cream, candy, baked goods, gelatins, and puddings. 2,3-Pentanedione also occurs naturally as a fermentation product in beer, wine, and yogurt and is releasedduring roasting of coffee beans[1]. 2,3-Pentanedione is a common constituent of synthetic flavorings and is used to impart a butter, strawberry, caramel, fruit, rum, or cheese flavor in beverages, ice cream, candy, baked goods, gelatins, and puddings. 2,3-Pentanedione also occurs naturally as a fermentation product in beer, wine, and yogurt and is releasedduring roasting of coffee beans[1].

   

2,3,4-Trihydroxybenzoic acid

InChI=1/C7H6O5/c8-4-2-1-3(7(11)12)5(9)6(4)10/h1-2,8-10H,(H,11,12

C7H6O5 (170.0215226)


2,3,4-Trihydroxybenzoic acid is a phenol constituent of Pachysandra terminalis. 2,3,4-Trihydroxybenzoic acid, along with other phenol compounds isolated from Pachysandra terminalis, showed significant antioxidant activity (PMID: 20939276). 2,3,4-Trihydroxybenzoic acid is a hydroxybenzoic acid. 2,3,4-Trihydroxybenzoic acid is a natural product found in Betula pendula, Plinia cauliflora, and Phaseolus vulgaris with data available. 2,3,4-Trihydroxybenzoic acid is an internal standard in separation of phenolic acids by HPLC. 2,3,4-Trihydroxybenzoic acid is an internal standard in separation of phenolic acids by HPLC.

   

2'-Hydroxyacetophenone

1-(2-Hydroxyphenyl)ethanone; Paracetamol Imp. I (EP); 2-Hydroxyacetophenone; Paracetamol Impurity I

C8H8O2 (136.0524268)


2-Hydroxyacetophenone, also known as 2-acetylphenol or 2-hydroxyacetylbenzene, belongs to the class of organic compounds known as alkyl-phenylketones. These are aromatic compounds containing a ketone substituted by one alkyl group, and a phenyl group. 2-Hydroxyacetophenone is a sweet, hawthorne, and herbal tasting compound. 2-hydroxyacetophenone has been detected, but not quantified, in several different foods, such as chinese cinnamons, tea, coffee and coffee products, alcoholic beverages, and garden tomato. 2-acetylphenol is a monohydroxyacetophenone that is acetophenone in which one of the hydrogens ortho to the acetyl group has been replaced by a hydroxy group. It has a role as a flavouring agent. It is a monohydroxyacetophenone and a member of phenols. 2-Hydroxyacetophenone is a natural product found in Castanopsis cuspidata, Mangifera indica, and other organisms with data available. Present in tomato, cassia (Cinnamomum cassia), fried beef, rum, whiskey, cocoa, coffee and black tea. Flavouring ingredient. 2-Hydroxyacetophenone is found in many foods, some of which are garden tomato, tea, chinese cinnamon, and herbs and spices. 2'-Hydroxyacetophenone is found in alcoholic beverages. 2'-Hydroxyacetophenone is present in tomato, cassia, fried beef, rum, whiskey, cocoa, coffee and black tea. 2'-Hydroxyacetophenone is a flavouring ingredient. Building block in chemical synthesis. 2'-Hydroxyacetophenone is found in alcoholic beverages. 2'-Hydroxyacetophenone is present in tomato, cassia, fried beef, rum, whiskey, cocoa, coffee and black tea. 2'-Hydroxyacetophenone is a flavouring ingredient. Building block in chemical synthesis.

   

2,2-Dimethylsuccinic acid

alpha,alpha-Dimethyl-succinic acid

C6H10O4 (146.057906)


2,2-dimethylsuccinic acid is an alpha,omega-dicarboxylic acid that is succinic acid substituted by two methyl groups at positions 2 and 2 respectively. It derives from a succinic acid. 2,2-Dimethylsuccinic acid, also known as 2,2-dimethylbutanedioate, belongs to the class of organic compounds known as methyl-branched fatty acids. These are fatty acids with an acyl chain that has a methyl branch. Usually, they are saturated and contain only one or more methyl group. However, branches other than methyl may be present. 2,2-Dimethylsuccinic acid is a very hydrophobic molecule, practically insoluble in water, and relatively neutral. 2,2-Dimethylsuccinic acid has been identified in urine samples from children investigated for a possible inherited metabolic disease (PMID 2134344), and in children fed elemental or protein-hydrolysate formulas that use Octanylsuccinic acid-modified cornstarch as an emulsifying agent (PMID 1805153) [HMDB] 2,2-Dimethylsuccinic acid belongs to the class of organic compounds known as methyl-branched fatty acids.

   

2-Methylglutaric acid

alpha-Methylene glutarate, ion(2-)

C6H10O4 (146.057906)


2-Methylglutaric acid, also known as alpha-methylglutarate or 2-methylpentanedioate, belongs to the class of organic compounds known as methyl-branched fatty acids. These are fatty acids with an acyl chain that has a methyl branch. Usually, they are saturated and contain only one or more methyl group. However, branches other than methyl may be present. 2-Methylglutaric acid is also classified as an alpha,omega-dicarboxylic acid. It is glutaric acid substituted at position 2 by a methyl group. 2-Methylglutaric acid arises from the microbial metabolism of the isoprenoid alkaloid pristane (PMID: 4327007; PMID: 20143352). 2-Methylglutaric acid is an organic acid normally found in human urine, in healthy adults and children. 2-Methylglutaric acid is a metabolite of succinic acid, a citric acid cycle intermediate. (PMID: 2925825, 8087979, 16379391, 1688138) [HMDB] 2-Methylpentanedioic acid is a metabolite of succinic acid, a citric acid cycle intermediate.

   

3,5-Dihydroxybenzoic acid

3,5-Dihydroxybenzoic acid (acd/name 4.0)

C7H6O4 (154.0266076)


3,5-Dihydroxybenzoic acid (3,5-DHBA) is a primary metabolite of alkylresorcinols which has been hydrolyzed by liver enzymes during phase I metabolism after several cycles of beta-oxidation. 3,5-Dihydroxybenzoic acid is a potential urinary biomarker of whole grain intake (PMID: 15282102). Constituent of Arachis hypogaea (peanuts) and Cicer arietinum (chickpea). 3,5-Dihydroxybenzoic acid is found in many foods, some of which are peanut, pulses, nuts, and beer. 3,5-Dihydroxybenzoic acid a potential biomarker for the consumption of many food products, including beer, nuts, peanut, and pulses. 3,5-Dihydroxybenzoic acid a potential biomarker for the consumption of many food products, including beer, nuts, peanut, and pulses.

   

2-Hydroxy-3-methylbutyric acid

2-Hydroxyisovaleric acid, monosodium salt, (S)-isomer

C5H10O3 (118.06299100000001)


2-Hydroxy-3-methylbutyric acid (also known as 2-hydroxyisovaleric acid) is a metabolite found in the urine of patients with phenylketonuria (PMID: 7978272), methylmalonic acidemia, propionic acidemia, 3-ketothiolase deficiency, isovaleric acidemia, 3-methylcrotonylglycemia, 3-hydroxy-3-methylglutaric acidemia, multiple carboxylase deficiency, glutaric aciduria, ornithine transcarbamylase deficiency, glyceroluria, tyrosinemia type I, galactosemia, and maple syrup urine disease (PMID: 11048741). 2-Hydroxyisovaleric acid has also been identified in the urine of patients with lactic acidosis and ketoacidosis (PMID: 884872), and in the urine of severely asphyxiated babies (PMID: 1610944). 2-Hydroxyisovaleric acid originates mainly from ketogenesis and from the metabolism of valine, leucine, and isoleucine (PMID: 6434570). 2-Hydroxy-3-methylbutyric acid has been identified in the human placenta (PMID: 32033212). 2-Hydroxy-3-methylbutyric acid is a metabolite found in the urine of patients with Phenylketonuria (PMID 7978272), Methylmalonic acidemia, Propionic acidemia, 3-Ketothiolase deficiency, Isovaleric acidemia, 3-Methylcrotonylglycemia, 3-Hydroxy-3-methylglutaric acidemia, Multiple carboxylase deficiency, Glutaric aciduria, Ornithine transcarbamylase deficiency, glyceroluria, Tyrosinemia type 1, Galactosemia, and Maple syrup urine disease (PMID 11048741) [HMDB] 2-Hydroxy-3-methylbutanoic acid is a close structure analogue of GHB, which is a naturally occurring neurotransmitter and a psychoactive agent.

   

2-Hydroxy-2-methylbutyric acid

(+/-)-alpha-hydroxy-alpha-methylbutyric acid

C5H10O3 (118.06299100000001)


2-Hydroxy-2-methylbutyric acid, also known as (+/-)-2-hydroxy-2-methylbutanoate or 2-methyl-2-hydroxybutyric acid, belongs to the class of organic compounds known as hydroxy fatty acids. These are fatty acids in which the chain bears a hydroxyl group. 2-Hydroxy-2-methylbutyric acid is a very hydrophobic molecule, practically insoluble in water, and relatively neutral. 2-Hydroxy-2-methylbutyric acid is an unusual metabolite found in the urine of patients with 2-hydroxyglutaric aciduria and maple syrup urine disease. 2-Hydroxy-2-methylbutyric acid is also a secondary metabolite found in human urine after exposure to the gasoline additive tert-amyl-Me-ether (TAME). (PMID 11504147, 10828258, 9260660, 11482739) [HMDB] (±)-2-Hydroxy-2-methylbutyric acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=3739-30-8 (retrieved 2024-07-02) (CAS RN: 3739-30-8). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). 2-Hydroxy-2-methylbutanoic acid, an unusual metabolite, is associated with 2-hydroxyglutaric aciduria and maple syrup urine disease.

   

2-Hydroxycaproic acid

DL-2-Hydroxyhexanoic acidhydroxyhexanoic acid

C6H12O3 (132.0786402)


2-hydroxycaproic acid, also known as 2-hydroxyhexanoic acid is a hydroxy fatty acid that is caproic (hexanoic) acid substituted by a hydroxy group at position 2. It has a role as an animal metabolite. It derives from a hexanoic acid. It is a conjugate acid of a 2-hydroxyhexanoate. 2-hydroxycaproic acid is a branched-chain alpha-keto acid that have been reported in normal human blood (PMID:7130306) and in normal amniotic fluid (PMID:7076774). It has been found that 2-hydroxycaproic acid is the most significant metabolite found in the CSF of patients infected with Nocardia. Nocardia sp. is an uncommon cause of meningitis, and Nocardia meningitis has a clinical picture similar to that of tuberculous meningitis (PMID:3818936; PMID:20615997). 2-Hydroxycaproic acid is a branched-chain alpha-keto acid that have been reported in normal human blood (PMID: 7130306) and in normal amniotic fluid. (PMID: 7076774) 2-Hydroxyhexanoic acid is an endogenous metabolite.

   

2,4-Dihydroxybenzoic acid

beta-Resorcylic acid, monosodium salt

C7H6O4 (154.0266076)


2,4-Dihydroxybenzoic acid is found in alcoholic beverages. 2,4-Dihydroxybenzoic acid is found in avocado, beer, wine and coffee. 2,4-Dihydroxybenzoic acid is a food flavour ingredient and flavour modifie Found in avocado, beer, wine and coffee. Food flavour ingredient and flavour modifier 2,4-Dihydroxybenzoic acid is a degradation product of cyaniding glycoside from tart cheeries in cell culture. 2,4-Dihydroxybenzoic acid is a degradation product of cyaniding glycoside from tart cheeries in cell culture.

   

2-Methylhippuric acid

2-[(2-methylphenyl)formamido]acetic acid

C10H11NO3 (193.0738896)


2-Methylhippuric acid is an acyl glycine. Acyl glycines are normally minor metabolites of fatty acids. However, the excretion of certain acyl glycines is increased in several inborn errors of metabolism. In certain cases, the measurement of these metabolites in body fluids can be used to diagnose disorders associated with mitochondrial fatty acid beta-oxidation. Acyl glycines are produced through the action of glycine N-acyltransferase (EC 2.3.1.13) which is an enzyme that catalyzes the chemical reaction: acyl-CoA + glycine <--> CoA + N-acylglycine. 2-Methylhippuric acid is a metabolite of xylene which is an aromatic hydrocarbon widely used as a solvant. Its level can be measured in the urine of workers exposed to xylene (PMID:8689499). 2-Methylhippuric acid is an endogenous phenolic acid metabolite detected after the consumption of whole grain. Methylhippuric acid is an acyl glycine. Acyl glycines are normally minor metabolites of fatty acids. However, the excretion of certain acyl glycines is increased in several inborn errors of metabolism. In certain cases the measurement of these metabolites in body fluids can be used to diagnose disorders associated with mitochondrial fatty acid beta-oxidation. Acyl glycines are produced through the action of glycine N-acyltransferase (EC 2.3.1.13) which is an enzyme that catalyzes the chemical reaction: 2-(2-Methylbenzamido)acetic acid is a metabolite detected in urine.

   

3,3-Dimethylglutaric acid

3,3-Dimethylpentanedioic acid

C7H12O4 (160.0735552)


3,3-Dimethylglutaric acid is a compound that has occasionally found in human urine. (PMID: 699273) [HMDB] 3,3-Dimethylglutaric acid is a compound that has occasionally found in human urine. (PMID: 699273). 3,3-Dimethylglutaric acid, a member of methyl-branched fatty acids, is a endogenous metabolite occasionally found in human urine[1].

   

3-hydroxydecanoate

L-beta-Hydroxydecanoic acid

C10H20O3 (188.141237)


3-Hydroxycapric acid (CAS: 14292-26-3) is a normally occurring carboxylic acid in human blood plasma. Medium- and long-chain 3-hydroxymonocarboxylic acids represent intermediates in the beta-oxidation of fatty acids. They accumulate in the plasma of patients with an inherited deficiency of long-chain 3-hydroxyacyl-CoA dehydrogenase (EC 1.1.1.35) (PMID: 1912723). 3-Hydroxyacyl-CoA dehydrogenase (HADH) deficiency has been described in diverse clinical cases: juvenile-onset recurrent myoglobinuria, hypoketotic hypoglycemic encephalopathy, hypertrophic/dilatative cardiomyopathy, sudden infant death, and fulminant hepatic failure (OMIM: 231530). 3-Hydroxycapric acid has some shape-transforming action on the membrane of intact human erythrocytes (PMID: 7318031). 3-hydroxycapric acid is a normally occurring carboxylic acid in human blood plasma. Medium- and long-chain 3-hydroxymonocarboxylic acids represent intermediates in the beta-oxidation of fatty acids. They accumulate in the plasma of patients with an inherited deficiency of long-chain 3-hydroxyacylCoA dehydrogenase [EC 1.1.1.35]. (PMID: 1912723) 3-Hydroxycapric acid is an inhibitor for mitotic progression.

   

3-Hydroxymandelic acid

2-Hydroxy-2-(3-hydroxyphenyl)acetic acid

C8H8O4 (168.0422568)


3-Hydroxymandelic acid, also known as m-hydroxymandelate or MHMA, is a 2-hydroxy monocarboxylic acid. 3-Hydroxymandelic acid is the dehydroxylated (positions 2 and 3‚Äô) derivative of phenylacetic acid. It is a white crystalline solid that is soluble in water and polar organic solvents. It derives from a mandelic acid. Mandelic acid is a substrate or product of several biochemical processes called the mandelate pathway. Mandelate racemase interconverts the two enantiomers via a pathway that involves cleavage of the alpha-CH bond. Mandelate dehydrogenase is yet another enzyme on this pathway. Mandelate also arises from trans-cinnamate via phenylacetic acid, which is hydroxylated. Derivatives of mandelic acid, such as 3-hydroxymandelic acid, are formed as a result of metabolism of adrenaline and noradrenaline by monoamine oxidase and catechol-O-methyl transferase. m-hydroxymandelic acid or 3-hyrodxymandelic acid is a metabolic breakdown product of m-octopamine, m-synephrine (phenylephrine) and m-tyrosine. It is a naturally occuring catecholamine metabolite. Concentrations of m-hydroxymandelic acid can be elevated 20- to 30-fold in neuroblastoma patients. [HMDB] D000890 - Anti-Infective Agents > D000892 - Anti-Infective Agents, Urinary > D008333 - Mandelic Acids 3-Hydroxymandelic Acid, a metabolite of Phenylephrine, Phenylephrine is a α-receptor agonist.

   

3-Hydroxyvaleric acid

beta-Hydroxy-N-valeric acid

C5H10O3 (118.06299100000001)


3-Hydroxyvaleric acid may be products of the condensation of propionyl-CoA with acetyl-CoA catalyzed by 3-oxoacyl-CoA thiolases. An increase amount of 3-hydroxyvaleric acid can be found in methylmalonic acidemia and propionic acidemia. (PMID: 630060) [HMDB] 3-Hydroxyvaleric acid may be products of the condensation of propionyl-CoA with acetyl-CoA catalyzed by 3-oxoacyl-CoA thiolases. An increase amount of 3-hydroxyvaleric acid can be found in methylmalonic acidemia and propionic acidemia. (PMID: 630060). 3-Hydroxyvaleric acid is a 5-carbon ketone body. 3-Hydroxyvaleric acid is anaplerotic, meaning it can refill the pool of TCA cycle intermediates.

   

3-Methoxyphenylacetic acid

3-methoxyphenylacetic acid, potassium salt

C9H10O3 (166.062991)


3-Methoxyphenylacetic acid, also known as m-Methoxyphenylacetic acid (m-OMePAA), a derivative of m-hydroxyphenylacetic acid (m-OHPAA) having the same chemical composition as that of the phytotoxic compound produced in culture by Rhizoctonia solani, a fungal pathogen of soybean. That phytotoxic compound reduced growth and symbiotic N2-fixation activity of Tracy soybeans in soil. The data indicate that phytotoxic compounds of R. solani are involved in nodule impairment and reduced N2-fixation in soybean (R. G. Orellana, and N. B. Mandava (1983) m-Hydroxyphenylacetic and m-Methoxyphenylacetic Acids of Rhizoctonia solani: Their Effect on Specific Root-Nodule Activity and Histopathology in Soybean. Journal of Phytopathology. Volume 107, Issue 2, pages 159167, June 1983). 3-Methoxyphenylacetic acid (m-Methoxyphenylacetic acid), a m-hydroxyphenylacetic acid (m-OHPAA) derivative, is a phytotoxin in Rhizoctonia solani. 3-Methoxyphenylacetic acid is used to develop a toxin-mediated bioassay for resistance to rhizoctonia root rot[1].

   

3-Methyladipic acid

(3S)-3-methylhexanedioic acid

C7H12O4 (160.0735552)


3-Methyladipic acid is a metabolite of the catabolism of phytanic acid. Patients with adult Refsums disease (ARD) are unable to detoxify phytanic acid by alpha-oxidation, and so the w-oxidation pathway is the only metabolic pathway available for phytanic acid degradation. This pathway produces 3-methyladipic acid as the final metabolite, which is excreted in the urine (Wanders et al. 2001). Activity of the w-oxidation pathway is approximately doubled in ARD patients compared with normal individuals (PMID: 11948235). [HMDB] 3-Methyladipic acid is a metabolite of the catabolism of phytanic acid. Patients with adult Refsums disease (ARD) are unable to detoxify phytanic acid by alpha-oxidation, and so the w-oxidation pathway is the only metabolic pathway available for phytanic acid degradation. This pathway produces 3-methyladipic acid as the final metabolite, which is excreted in the urine (Wanders et al. 2001). Activity of the w-oxidation pathway is approximately doubled in ARD patients compared with normal individuals (PMID: 11948235). 3-Methyladipic acid is the final metabolite in the ω-oxidation pathway.

   

Methylglutaric acid

3-Methylpentanedioic acid

C6H10O4 (146.057906)


Methylglutaric acid is a leucine metabolite. A large amount of methylglutaric acid is identified in urine of patients with deficiency of 3-methylglutaconyl coenzyme A hydratase (PMID 6181239). Methylglutaric acid is also found to be associated with 3-hydroxy-3-methylglutaryl-CoA lyase deficiency, another inborn error of metabolism. Methylglutaric acid is a leucine metabolite. A large amount of methylglutaric acid is identified in urine of patients with deficiency of 3-methylglutaconyl coenzyme A hydratase (PMID 6181239). [HMDB] 3-Methylglutaric acid, a leucine metabolite, is a conspicuous C6 dicarboxylic organic acid classically associated with two distinct leucine pathway enzyme deficiencies, 3-hydroxy-3-methylglutaryl CoA lyase (HMGCL) and 3-methylglutaconyl CoA hydratase (AUH)[1][2].

   

3-Methylhistidine

(2S)-2-Amino-3-(1-methyl-1H-imidazol-5-yl)propanoic acid

C7H11N3O2 (169.0851226)


3-Methylhistidine, also known as 3-MHis or 3MH, belongs to the class of organic compounds known as histidine and derivatives. 3MH is also classified as a methylamino acid. Methylamino acids are primarily proteogenic amino acids (found in proteins) which have been methylated (in situ) on their side chains by various methyltransferase enzymes. 3-Methylhistidine is also classified as a member of the class of compounds known as L-alpha-amino acids. L-alpha-Amino acids are alpha amino acids which have the L-configuration of the alpha-carbon atom. Amino acids are organic compounds that contain amino (–NH2) and carboxyl (–COOH) functional groups, along with a side chain (R group) specific to each amino acid. 3-Methylhistidine is generated from histidine residues found in proteins. Histidine can be methylated at either the N1 or N3 position of its imidazole ring, yielding the isomers 1-methylhistidine (1MH; also referred to as pi-methylhistidine) or 3-methylhistidine (3MH; tau-methylhistidine), respectively. There is considerable confusion with regard to the nomenclature of the methylated nitrogen atoms on the imidazole ring of histidine and other histidine-containing peptides such as anserine. In particular, older literature (mostly prior to the year 2000) designated anserine (Npi methylated) as beta-alanyl-N1-methyl-histidine, whereas according to standard IUPAC nomenclature, anserine is correctly named as beta-alanyl-N3-methyl-histidine. As a result, many papers published prior to the year 2000 incorrectly identified 1MH as a specific marker for dietary consumption or various pathophysiological effects when they really were referring to 3MH (PMID: 24137022). Histidine methylation on the 3- or tau site is mediated by the enzyme known as METTL18. METTL18 is a nuclear methyltransferase protein that contains a functional nuclear localization signal and accumulates in nucleoli. Urinary concentrations of 3-methylhistidine can be used as a biomarker for skeletal muscle protein breakdown in humans who have been subject to muscle injury (PMID: 16079625). 3-methylhistidine is formed by the posttranslational methylation of histidine residues of the main myofibrillar proteins actin and myosin. During protein catabolism, 3-methylhistidine is released but cannot be reutilized. Therefore, the plasma concentration and urine excretion of 3-methylhistidine are sensitive markers of myofibrillar protein degradation (PMID: 32235743). Approximately 75\\\% of 3-methylhistidine is estimated to originate from skeletal muscle (PMID: 32235743). In addition to the degradation of muscle proteins, the 3-methylhistidine level is affected by the degradation of intestinal proteins and meat intake. 3-Methylhistidine exists in all eukaryotes, ranging from yeast to humans. In humans, 3-methylhistidine is involved in methylhistidine metabolism. 3-Methylhistidine has been found to be associated with several diseases such as diabetes mellitus type 2, eosinophilic esophagitis, and kidney disease. The normal concentration of 3-methylhistidine in the urine of healthy adult humans has been detected and quantified in a range of 3.63–69.27 micromoles per millimole (umol/mmol) of creatinine, with most studies reporting the average urinary concentration between 15–20 umol/mmol of creatinine. The average concentration of 3-methylhistidine in human blood plasma has been detected and quantified at 2.85 micromolar (uM) with a range of 0.0–5.9 uM. As a general rule, urinary 1MH is associated with white meat intake (p< 0.001), whereas urinary 3MH is associated with red meat intake (p< 0.001) (PMID: 34091671). 3-Methyl-L-histidine is a biomarker for meat consumption, especially chicken. It is also a biomarker for the consumption of soy products.

   

3-Pyridylacetic acid

alpha-(3-Pyridyl)acetic acid

C7H7NO2 (137.0476762)


3-Pyridylacetic acid is a breakdown product of nicotine (and other tobacco alkaloids) and is part of the nicotine degradation pathway. It is formed from 4-(3-pyridyl)-butanoate. One alkaloid in particular, myosmine, appears to be a major source for 3-pyridylacetic acid. The alkaloid myosmine is present not only in tobacco products but also in various foods. Myosmine is easily nitrosated, yielding 4-hydroxy-1-(3-pyridyl)-1-butanone (HPB) and the esophageal tobacco carcinogen N-nitrosonornicotine. The two major metabolites of myosmine metabolism have been identified as 3-pyridylacetic acid (20-26\\\%) and 4-oxo-4-(3-pyridyl)butyric acid (50-60\\\%) (PMID: 16079272). 3-pyridylacetatic acid is an analog of nicotinic acid. (PMID 13898750) [HMDB] 3-Pyridylacetic acid is a breakdown product of nicotine (and other tobacco alkaloids) and is part of the nicotine degradation pathway. It is formed from 4-(3-pyridyl)-butanoate. One alkaloid in particular, myosmine, appears to be a major source for 3-pyridylacetic acid. The alkaloid myosmine is present not only in tobacco products but also in various foods. Myosmine is easily nitrosated, yielding 4-hydroxy-1-(3-pyridyl)-1-butanone (HPB) and the esophageal tobacco carcinogen N-nitrosonornicotine. The two major metabolites of myosmine metabolism have been identified as 3-pyridylacetic acid (20-26\\\%) and 4-oxo-4-(3-pyridyl)butyric acid (50-60\\\%) (PMID:16079272). 3-pyridylacetatic acid is an analog of nicotinic acid. (PMID 13898750). 3-Pyridineacetic acid is a higher homologue of nicotinic acid, a breakdown product of nicotine (and other tobacco alkaloids)[1][2].

   

4-Methoxysalicylic acid

4-Methoxysalicylic acid

C8H8O4 (168.0422568)


2-Hydroxy-4-methoxybenzoic acid is a derivative of methoxybenzoic. 2-Hydroxy-4-methoxybenzoic is a potential biomarker. 2-Hydroxy-4-methoxybenzoic acid is a derivative of methoxybenzoic. 2-Hydroxy-4-methoxybenzoic is a potential biomarker.

   

D-Phenyllactic acid

(R)-alpha-Hydroxy-3-phenylpropionic acid

C9H10O3 (166.062991)


Phenyllactic acid is a product of phenylalanine catabolism. An elevated level of phenyllactic acid is found in body fluids of patients with or phenylketonuria. (+)-3-Phenyllactic acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=7326-19-4 (retrieved 2024-07-04) (CAS RN: 7326-19-4). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). (S)-2-Hydroxy-3-phenylpropanoic acid is a product of phenylalanine catabolism. An elevated level of phenyllactic acid is found in body fluids of patients with or phenylketonuria. D-?(+)?-?Phenyllactic acid is an anti-bacterial agent, excreted by Geotrichum candidum, inhibits a range of Gram-positive from humans and foodstuffs and Gram-negative bacteria found in humans[1]. DL-3-Phenyllactic acid is a broad-spectrum antimicrobial compound. DL-3-Phenyllactic acid is a broad-spectrum antimicrobial compound.

   

2-Methoxybenzoic acid

2-Methoxybenzoic acid, sodium salt

C8H8O3 (152.0473418)


2-Methoxybenzoic acid is a flavouring agent 2-Methoxybenzoic acid, o-anisic acid, or ortho-methoxybenzoic acid is an organic compound which is an ortho carboxylic acid. It is a crystalline solid D000893 - Anti-Inflammatory Agents > D000894 - Anti-Inflammatory Agents, Non-Steroidal > D012459 - Salicylates Flavouring agent 2-Methoxybenzoic acid (NSC 3778) is used as an internal standard of salicylic acid and its putative biosynthetic precursors in cucumber leaves. Another known use is in the synthesis of Benextramine. 2-Methoxybenzoic acid (NSC 3778) is used as an internal standard of salicylic acid and its putative biosynthetic precursors in cucumber leaves. Another known use is in the synthesis of Benextramine.

   

3-Phenoxybenzoic acid

Diphenyl ether 3-carboxylic acid

C13H10O3 (214.062991)


3-phenoxybenzoic acid belongs to the family of Benzoic Acid and Derivatives. These are organic compounds containing a carboxylic acid substituent attached to a benzene ring. 3-Phenoxybenzoic acid is an endogenous metabolite.

   

3,4-Dimethylbenzoic acid

1-Carboxy-3,4-dimethylbenzene

C9H10O2 (150.06807600000002)


Trimethylobenzene is metabolized mainly to dimethylbenzoic (DMBA) acid. Trimethylobenzene (TMB) is a common ingredient of many organic solvents used in industry. DMBA and dimethylhippuric (DMHA) acids, excreted in urine can be used as biological indicators of exposure to TMB. (PMID: 8170375). Isolated from Eryngium foetidum (culantro) 3,4-Dimethylbenzoic acid acts as a product of dimethylbenzoate metabolism by Rhodococcus rhodochrous N75[1].

   

3-Methoxybenzoic acid

BENZOIC ACID,3-methoxy

C8H8O3 (152.0473418)


3-Methoxybenzoic acid is a flavouring ingredient for foods. 3-Methoxybenzoic acid is a food additive listed in the EAFUS food Additive Database (Jan. 2001 Flavouring ingredient for foods. Food additive listed in the EAFUS Food Additive Database (Jan. 2001) 3-Methoxybenzoic acid can be used in the synthesis of 3-methoxybenzoates of europium (III) and gadolinium (III).

   

2-Furoylglycine

[[(Furan-2-yl)carbonyl]amino]acetic acid

C7H7NO4 (169.0375062)


2-Furoylglycine is an acyl glycine. Acyl glycines are normally minor metabolites of fatty acids. However, the excretion of certain acyl glycines is increased in several inborn errors of metabolism. In certain cases the measurement of these metabolites in body fluids can be used to diagnose disorders associated with mitochondrial fatty acid beta-oxidation. Acyl glycines are produced through the action of glycine N-acyltransferase (EC 2.3.1.13) which is an enzyme that catalyzes the chemical reaction:. acyl-CoA + glycine < -- > CoA + N-acylglycine. Dietary studies show that 2-Furoylglycine precursors are of exogenous origin. Most probably from furan derivatives found in food prepared by strong heating. This may explain the absence of 2-furoylglycine in urine of breastfed children (PMID 4630229). 2-Furoylglycine is also a microbial metabolite. 2-Furoylglycine is an acyl glycine. Acyl glycines are normally minor metabolites of fatty acids. However, the excretion of certain acyl glycines is increased in several inborn errors of metabolism. In certain cases the measurement of these metabolites in body fluids can be used to diagnose disorders associated with mitochondrial fatty acid beta-oxidation. Acyl glycines are produced through the action of glycine N-acyltransferase (EC 2.3.1.13) which is an enzyme that catalyzes the chemical reaction: 2-Furoylglycine, a urinary metabolite in human, is a putative biomarker for coffee consumption[1].

   

3,5-Dimethoxybenzoic acid

3,5-Dimethoxybenzoic acid

C9H10O4 (182.057906)


3,5-Dimethoxybenzoic acid, isolated from Melia azedarach L. leaves with antifungal activity, is an intermediate in organic synthesis[1]. 3,5-Dimethoxybenzoic acid, isolated from Melia azedarach L. leaves with antifungal activity, is an intermediate in organic synthesis[1].

   

3-Methoxytyrosine

2-amino-3-(4-hydroxy-3-methoxyphenyl)propanoic acid

C10H13NO4 (211.0844538)


3-Methoxytyrosine, also known as 3-O-methyldopa or vanilalanine, belongs to the class of organic compounds known as tyrosine and derivatives. Tyrosine and derivatives are compounds containing tyrosine or a derivative thereof resulting from reaction of tyrosine at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom. 3-Methoxytyrosine is one of the main biochemical markers for Aromatic L-amino acid decarboxylase (AADC, EC4.1.1.28) deficiency, an inborn error of metabolism that affects serotonin and dopamine biosynthesis. Chronically high levels of 3-methoxytyrosine are associated with aromatic L-amino acid decarboxylase (AADC, 28) deficiency, an inborn error of metabolism that affects serotonin and dopamine biosynthesis. 3-Methoxytyrosine is a potentially toxic compound. 3-Methoxytyrosine, with regard to humans, has been found to be associated with several diseases such as epilepsy, early-onset, vitamin b6-dependent and pyridoxamine 5-prime-phosphate oxidase deficiency; 3-methoxytyrosine has also been linked to several inborn metabolic disorders including sepiapterin reductase deficiency and aromatic l-amino acid decarboxylase deficiency. 3-Methoxytyrosine is one of the main biochemical markers for Aromatic L-amino acid decarboxylase (AADC, EC 4.1.1.28) deficiency, an inborn error of metabolism that affects serotonin and dopamine biosynthesis. Patients are usually detected in infancy due to developmental delay, hypotonia, and extrapyramidal movements. Diagnosis is based on an abnormal neurotransmitter metabolite profile in CSF and reduced AADC activity in plasma. 3-methoxytyrosine is elevated in CSF, plasma, and urine. (PMID 1357595, 1281049, 16288991) [HMDB] 3-O-Methyldopa (3-Methoxy-L-tyrosine) is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of l-DOPA and dopamine[1]. 3-O-Methyldopa (3-Methoxy-L-tyrosine) is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of l-DOPA and dopamine[1].

   

MG(18:2(9Z,12Z)/0:0/0:0)

(2S)-2,3-dihydroxypropyl (9Z,12Z)-octadeca-9,12-dienoate

C21H38O4 (354.2769948)


MG(18:2(9Z,12Z)/0:0/0:0) is a monoacylglyceride. A monoglyceride, more correctly known as a monoacylglycerol, is a glyceride consisting of one fatty acid chain covalently bonded to a glycerol molecule through an ester linkage. Monoacylglycerol can be broadly divided into two groups; 1-monoacylglycerols (or 3-monoacylglycerols) and 2-monoacylglycerols, depending on the position of the ester bond on the glycerol moiety. Normally the 1-/3-isomers are not distinguished from each other and are termed alpha-monoacylglycerols, while the 2-isomers are beta-monoacylglycerols. Monoacylglycerols are formed biochemically via release of a fatty acid from diacylglycerol by diacylglycerol lipase or hormone sensitive lipase. Monoacylglycerols are broken down by monoacylglycerol lipase. They tend to be minor components only of most plant and animal tissues, and indeed would not be expected to accumulate because their strong detergent properties would have a disruptive effect on membranes. 2-Monoacylglycerols are a major end product of the intestinal digestion of dietary fats in animals via the enzyme pancreatic lipase. They are taken up directly by the intestinal cells and converted to triacylglycerols via the monoacylglycerol pathway before being transported in lymph to the liver. Mono- and Diglycerides are commonly added to commercial food products in small quantities. They act as emulsifiers, helping to mix ingredients such as oil and water that would not otherwise blend well. [HMDB] MG(18:2(9Z,12Z)/0:0/0:0) is a monoacylglyceride. A monoglyceride, more correctly known as a monoacylglycerol, is a glyceride consisting of one fatty acid chain covalently bonded to a glycerol molecule through an ester linkage. Monoacylglycerol can be broadly divided into two groups; 1-monoacylglycerols (or 3-monoacylglycerols) and 2-monoacylglycerols, depending on the position of the ester bond on the glycerol moiety. Normally the 1-/3-isomers are not distinguished from each other and are termed alpha-monoacylglycerols, while the 2-isomers are beta-monoacylglycerols. Monoacylglycerols are formed biochemically via release of a fatty acid from diacylglycerol by diacylglycerol lipase or hormone sensitive lipase. Monoacylglycerols are broken down by monoacylglycerol lipase. They tend to be minor components only of most plant and animal tissues, and indeed would not be expected to accumulate because their strong detergent properties would have a disruptive effect on membranes. 2-Monoacylglycerols are a major end product of the intestinal digestion of dietary fats in animals via the enzyme pancreatic lipase. They are taken up directly by the intestinal cells and converted to triacylglycerols via the monoacylglycerol pathway before being transported in lymph to the liver. Mono- and Diglycerides are commonly added to commercial food products in small quantities. They act as emulsifiers, helping to mix ingredients such as oil and water that would not otherwise blend well. 1-Linoleoyl Glycerol is a fatty acid glycerol. 1-Linoleoyl Glycerol is a fatty acid glycerol. 1-Linoleoyl Glycerol is a fatty acid glycerol.

   

3-Furoic acid

furan-3-carboxylic acid

C5H4O3 (112.0160434)


3-Furoic acid is an organic acid regularly occurring in urine of healthy individuals. (PMID 2338430). 3-Furoic acid is also a compound found in honey and honeydew samples (PMID 11403496), and is a structural analog of nicotinic acid (niacin, a vitamin of the B complex). (PMID 12563315) [HMDB] 3-Furoic acid is an organic acid regularly occurring in urine of healthy individuals. (PMID 2338430). 3-Furoic acid is also a compound found in honey and honeydew samples (PMID 11403496), and is a structural analog of nicotinic acid (niacin, a vitamin of the B complex). (PMID 12563315). 3-Furanoic acid is an endogenous metabolite. 3-Furanoic acid is an endogenous metabolite.

   

Methylsuccinic acid

(-)-(S)-alpha-Methylsuccinic acid

C5H8O4 (132.0422568)


Methylsuccinic acid (CAS: 498-21-5) is a normal metabolite found in human fluids. Increased urinary levels of methylsuccinic acid (together with ethylmalonic acid) are the main biochemical measurable features in ethylmalonic encephalopathy (OMIM: 602473), a rare metabolic disorder with an autosomal recessive mode of inheritance that is clinically characterized by neuromotor delay, hyperlactic acidemia, recurrent petechiae, orthostatic acrocyanosis, and chronic diarrhea (PMID:12382164). The underlying biochemical defect involves isoleucine catabolism (PMID:9667231). Methylsuccinic acid levels were found to have decreased in the urine of animals under D-serine-induced nephrotoxicity (D-serine causes selective necrosis of the proximal straight tubules in the rat kidney) (PMID:15596249). Moreover, methylsuccinic acid is found to be associated with ethylmalonic encephalopathy, isovaleric acidemia, and medium-chain acyl-CoA dehydrogenase deficiency, which are also inborn errors of metabolism. Methylsuccinic acid is a normal metabolite found in human fluids. Increased urinary levels of Methylsuccinic acid (together with ethylmalonic acid) are the main biochemical measurable features in ethylmalonic encephalopathy (OMIM 602473 ), a rare metabolic disorder with an autosomal recessive mode of inheritance that is clinically characterized by neuromotor delay, hyperlactic acidemia, recurrent petechiae, orthostatic acrocyanosis, and chronic diarrhea. (PMID 12382164) T he underlying biochemical defect involves isoleucine catabolism. (PMID 9667231) 2-Methylsuccinic acid is a normal metabolite in human fluids and the main biochemical measurable features in ethylmalonic encephalopathy.

   

2-Piperidinone

5-amino-Lactam-pentanoic acid

C5H9NO (99.0684104)


2-Piperidinone is a derivative of piperidine which is an organic compound. Piperidine is a colorless fuming liquid with an odor described as ammoniacal, pepper-like, the name comes from the genus name Piper, which is the Latin word for pepper. Piperidine is a widely used building block and chemical reagent in the synthesis of organic compounds, including pharmaceuticals.The piperidine structural motif is present in numerous natural alkaloids. These include piperine, which gives black pepper the hot taste. This gave the compound its name. [HMDB] 2-Piperidinone is a derivative of piperidine which is an organic compound. Piperidine is a colorless fuming liquid with an odor described as ammoniacal, pepper-like, the name comes from the genus name Piper, which is the Latin word for pepper. Piperidine is a widely used building block and chemical reagent in the synthesis of organic compounds, including pharmaceuticals.The piperidine structural motif is present in numerous natural alkaloids. These include piperine, which gives black pepper the hot taste. This gave the compound its name. 2-Piperidone is an endogenous metabolite.

   

N-Acetylasparagine

(2S)-3-(C-Hydroxycarbonimidoyl)-2-[(1-hydroxyethylidene)amino]propanoate

C6H10N2O4 (174.064054)


N-Acetyl-L-asparagine or N-Acetylasparagine, belongs to the class of organic compounds known as N-acyl-alpha amino acids. N-acyl-alpha amino acids are compounds containing an alpha amino acid which bears an acyl group at its terminal nitrogen atom. N-Acetylasparagine can also be classified as an alpha amino acid or a derivatized alpha amino acid. Technically, N-Acetylasparagine is a biologically available N-terminal capped form of the proteinogenic alpha amino acid L-asparagine. N-acetyl amino acids can be produced either via direct synthesis of specific N-acetyltransferases or via the proteolytic degradation of N-acetylated proteins by specific hydrolases. N-terminal acetylation of proteins is a widespread and highly conserved process in eukaryotes that is involved in protection and stability of proteins (PMID: 16465618). About 85\\\% of all human proteins and 68\\\% of all yeast proteins are acetylated at their N-terminus (PMID: 21750686). Several proteins from prokaryotes and archaea are also modified by N-terminal acetylation. The majority of eukaryotic N-terminal-acetylation reactions occur through N-acetyltransferase enzymes or NAT’s (PMID: 30054468). These enzymes consist of three main oligomeric complexes NatA, NatB, and NatC, which are composed of at least a unique catalytic subunit and one unique ribosomal anchor. The substrate specificities of different NAT enzymes are mainly determined by the identities of the first two N-terminal residues of the target protein. The human NatA complex co-translationally acetylates N-termini that bear a small amino acid (A, S, T, C, and occasionally V and G) (PMID: 30054468). NatA also exists in a monomeric state and can post-translationally acetylate acidic N-termini residues (D-, E-). NatB and NatC acetylate N-terminal methionine with further specificity determined by the identity of the second amino acid. N-acetylated amino acids, such as N-acetylasparagine can be released by an N-acylpeptide hydrolase from peptides generated by proteolytic degradation (PMID: 16465618). In addition to the NAT enzymes and protein-based acetylation, N-acetylation of free asparagine can also occur. In particular, N-Acetylasparagine can be biosynthesized from L-asparagine and acetyl-CoA by the enzyme NAT1 or the arylamine acetyltransferase I (https://doi.org/10.1096/fasebj.31.1_supplement.821.8). Many N-acetylamino acids are classified as uremic toxins if present in high abundance in the serum or plasma (PMID: 26317986; PMID: 20613759). Uremic toxins are a diverse group of endogenously produced molecules that, if not properly cleared or eliminated by the kidneys, can cause kidney damage, cardiovascular disease and neurological deficits (PMID: 18287557). A human metabolite taken as a putative food compound of mammalian origin [HMDB] (S)-2-acetamido-4-amino-4-oxobutanoic acid is an endogenous metabolite.

   

3-Chlorotyrosine

2-amino-3-(3-chloro-4-hydroxyphenyl)propanoic acid

C9H10ClNO3 (215.034918)


3-Chlorotyrosine, a specific marker of myeloperoxidase-catalyzed oxidation, is markedly elevated in low density lipoprotein isolated from human atherosclerotic intima. (PMID 9151778). In particular, myeloperoxidase halogenates tyrosine residues in plasma proteins and and generates 3-chlorotyrosine (CY). The detection of free chlorotyrosine in blood or urine arises from the degradation of these chlorinated proteins. CY concentrations may be useful for monitoring the activation of neutrophils in asthmatic patients (PMID 15196282). 3-Chlorotyrosine, a specific marker of myeloperoxidase-catalyzed oxidation, is markedly elevated in low density lipoprotein isolated from human atherosclerotic intima. (PMID 9151778) [HMDB] D004791 - Enzyme Inhibitors 3-Chloro-L-tyrosine is a specific marker of myeloperoxidase-catalyzed oxidation, and is markedly elevated in low density lipoprotein isolated from human atherosclerotic intima.

   

Indole-3-propionic acid

3-(1H-Indol-3-yl)propanoic acid

C11H11NO2 (189.0789746)


Indole-3-propionic acid (IPA, indole-3-propionate, or indole propionic acid), is a reductive product of tryptophan formed by bacteria in the gastrointestinal tract of mammals and birds (PMID:29168502). It is endogenously produced by human microbiota and has only been detected in vivo (PMID:19234110). While many microbial metabolites produced in the gut are toxic or act as uremic toxins (when they are reabsorbed through the gut epithelia), indole-3-propionic acid is a very beneficial microbial metabolite (PMID:30914514, 30862081, 29238104). In limited studies, urinary IPA correlates positively with disease and it remains unclear if this represents host bacteria responding to pathology via the production of IPA, or intestinal permeability changes leading to higher absorption and excretion of IPA, or inflammatory changes within kidneys leading to high excretion of IPA (PMID:32132996). Indole-3-propionic acid is a remarkably strong antioxidant (PMID:10721080). It is an even more potent scavenger of hydroxyl radicals than melatonin, the most potent scavenger of hydroxyl radicals synthesized by the human body. Similar to melatonin but unlike other antioxidants, indole-3-propionic acid scavenges radicals without subsequently generating reactive and pro-oxidant intermediate compounds (PMID:9928448, 10419516). Indole-3-propionic acid has been shown to prevent oxidative stress and the death of primary neurons and neuroblastoma cells exposed to the amyloid beta-protein in the form of amyloid fibrils, one of the most prominent neuropathologic features of Alzheimers disease. 3-Indolepropionic acid also shows a strong level of neuroprotection in two other paradigms of oxidative stress. (PMID 10419516) More recently it has been found that higher indole-3-propionic acid levels in serum/plasma are associated with a reduced likelihood of type 2 diabetes and with higher levels of consumption of fibre-rich foods (PMID:28397877). Studies have shown that serum levels of indole-3-propionic acid are positively correlated with dietary fibre intake and negatively correlated with C-reactive protein levels (PMID:29795366). Indole-3-propionic acid is a marker for the presence of Clostridium sporogenes in the gut. Higher levels are associated with higher levels of Clostridium sporogenes (PMID:7378938). In addition to its useful physiological role in mammals, indole-3-propionic acid is a plant hormone with functions similar to indole-3-acetic acid (or IAA), the major plant auxin. Recent studies have shed some light on additional mechanisms of action of IPA. In the intestine, IPA could serve as a ligand to an adopted orphan nuclear receptor, Pregnane X receptor (PXR) and act as an anti-inflammatory agent (PMID:25065623). This property has allowed investigators to develop more potent analogs targeting PXR (PMID:32153125). Other tissues may also be targeted by IPA in a similar manner (PMID:31211619). Indole-3-propionate (IPA), a deamination product of tryptophan formed by symbiotic bacteria in the gastrointestinal tract of mammals and birds. 3-Indolepropionic acid has been shown to prevent oxidative stress and death of primary neurons and neuroblastoma cells exposed to the amyloid beta-protein in the form of amyloid fibrils, one of the most prominent neuropathologic features of Alzheimers disease. 3-Indolepropionic acid also shows a strong level of neuroprotection in two other paradigms of oxidative stress. (PMID: 10419516) [HMDB]. 1H-Indole-3-propanoic acid is found in common pea. 3-Indolepropionic acid is shown to be a powerful antioxidant and has potential in the treatment for Alzheimer’s disease.

   

3-Hydroxyglutaric acid

3-Hydroxypentanedioic acid

C5H8O5 (148.0371718)


3-Hydroxyglutaric acid is a member of the class of compounds known as dicarboxylic acids and derivatives. These are organic compounds containing exactly two carboxylic acid groups. 3-Hydroxyglutaric acid is soluble (in water) and a weakly acidic compound (based on its pKa). When present in sufficiently high levels, 3-hydroxyglutaric acid can act as an acidogen and a metabotoxin. An acidogen is an acidic compound that induces acidosis, which has multiple adverse effects on many organ systems. A metabotoxin is an endogenously produced metabolite that causes adverse health effects at chronically high levels. Chronically high levels of 3-hydroxyglutaric acid are associated with glutaric aciduria type I (glutaric acidemia type I, glutaryl-CoA dehydrogenase deficiency, GA1, or GAT1). GA1 is an inherited disorder in which the body is unable to completely break down the amino acids lysine, hydroxylysine, and tryptophan due to a deficiency of mitochondrial glutaryl-CoA dehydrogenase (EC 1.3.99.7, GCDH). Excessive levels of their intermediate breakdown products (e.g. glutaric acid, glutaryl-CoA, 3-hydroxyglutaric acid, glutaconic acid) can accumulate and cause damage to the brain (and also other organs), but particularly the basal ganglia. GA1 is associated with a risk for intracranial and retinal hemorrhage, and non-specific white matter changes. Babies with glutaric acidemia type I are often born with unusually large heads (macrocephaly). Other symptoms include spasticity (increased muscle tone/stiffness) and dystonia (involuntary muscle contractions resulting in abnormal movement or posture), but many affected individuals are asymptomatic. Seizures and coma (encephalopathy) are rare. GA1 also causes secondary carnitine deficiency because 3-hydroxyglutaric acid, like other organic acids, is detoxified by carnitine. 3-Hydroxyglutaric acid is a key metabolite in glutaryl co-enzyme A dehydrogenase deficiency, and is considered to be a potential neurotoxin. The urine level of 3-Hydroxyglutaric acid is elevated in Glutaric Aciduria Type I (glutaryl-CoA dehydrogenase deficiency) patients. (PMID 16573641) [HMDB] 3-Hydroxyglutaric acid is a glutaric acid derivative.

   

Hydroxyoctanoic acid

alpha-Hydroxy-N-caprylic acid

C8H16O3 (160.10993860000002)


Hydroxyoctanoic acid medium chain substrate of the 2-hydroxy acid oxidases associated with the 3 distinct human 2-hydroxy acid oxidase genes, HAOX1, HAOX2, and HAOX3. (PMID: 10777549) [HMDB] Hydroxyoctanoic acid medium chain substrate of the 2-hydroxy acid oxidases associated with the 3 distinct human 2-hydroxy acid oxidase genes, HAOX1, HAOX2, and HAOX3. (PMID: 10777549). 2-Hydroxyoctanoic acid is a medium chain acyl-CoA synthetase inhibitor with a Ki of 500 μM[1]. 2-Hydroxyoctanoic acid is a medium chain acyl-CoA synthetase inhibitor with a Ki of 500 μM[1].

   

2',6'-Dihydroxyacetophenone

Ethanone, 1-(2,6-dihydroxyphenyl)- (9ci)

C8H8O3 (152.0473418)


Potential component of FEMA 3662. 2,6-Dihydroxyacetophenone is a flavouring ingredien Potential component of FEMA 3662. Flavouring ingredient 2,6-Dihydroxyacetophenone is an endogenous metabolite. 2,6-Dihydroxyacetophenone is an endogenous metabolite.

   

Methyl beta-naphthyl ketone

1-(naphthalen-2-yl)ethan-1-one

C12H10O (170.073161)


Methyl beta-naphthyl ketone is used as a food additive [EAFUS] ("EAFUS: Everything Added to Food in the United States. [http://www.eafus.com/]") 2-Acetonaphthone is an endogenous metabolite.

   

2-Phenylpropionate

alpha-Methylbenzeneacetic acid

C9H10O2 (150.06807600000002)


2-Phenylpropionate is an intermediate in alpha-Methylstyrene (2-phenylpropylene) metabolism. It was identified in human liver slices in small amounts. It is. likely that 2-Phenylpropionate derives from 2-phenylpropionaldehyde, formed from a. 1,2-hydride shift during the transfer of active oxygen to the vinyl. group, as has been proposed for the cytochrome P450-mediated oxidation. of styrene to form phenylacetaldehyde. (PMID: 11159807). 2-Phenylpropionate has been found to be a metabolite of Acinetobacter, Bacteroides, Bifidobacterium, Clostridium, Enterococcus, Escherichia, Eubacterium, Klebsiella, Lactobacillus, Pseudomonas and Staphylococcus (PMID: 19961416). 2-Phenylpropionate is an intermediate in alpha-Methylstyrene (2-phenylpropylene) metabolism. It was identified in human liver slices in small amounts. It is 2-Phenylpropionic acid is an intermediate in alpha-Methylstyrene metabolism. 2-Phenylpropionic acid is an intermediate in alpha-Methylstyrene metabolism.

   

2-Methylacetophenone

1-(2-Methylphenyl)ethan-1-one

C9H10O (134.073161)


2-Methylacetophenone belongs to the class of organic compounds known as alkyl-phenylketones. These are aromatic compounds containing a ketone substituted by one alkyl group and a phenyl group. 2-Methylacetophenone is an extremely weak basic (essentially neutral) compound (based on its pKa). 2-Methylacetophenone is used as a food additive (EAFUS: Everything Added to Food in the United States). 2-Methylacetophenone is an endogenous metabolite. 2-Methylacetophenone is an endogenous metabolite.

   

Garcinia acid

hydroxycitric acid, trisodium salt, (erythro-(+-))-isomer

C6H8O8 (208.02191679999999)


Garcinia acid is found in fruits. Garcinia acid is isolated from Garcinia atroviridis (gelugor), Garcinia indica (kokam) and Garcinia cambogi (-)-Hydroxycitric acid (Garcinia acid) is the principal acid of fruit rinds of Garcinia cambogia. (-)-Hydroxycitric acid is a potent and competitive and orally active inhibitor of ATP citrate lyase. (-)-Hydroxycitric acid suppresses the fatty acid synthesis, lipogenesis, food intake, and induced weight loss[1][2]. (-)-Hydroxycitric acid (Garcinia acid) is the principal acid of fruit rinds of Garcinia cambogia. (-)-Hydroxycitric acid is a potent and competitive inhibitor of ATP citrate lyase. (-)-Hydroxycitric acid suppresses the fatty acid synthesis, lipogenesis, food intake, and induced weight loss[1][2]. (-)-Hydroxycitric acid (Garcinia acid) is the principal acid of fruit rinds of Garcinia cambogia. (-)-Hydroxycitric acid is a potent and competitive and orally active inhibitor of ATP citrate lyase. (-)-Hydroxycitric acid suppresses the fatty acid synthesis, lipogenesis, food intake, and induced weight loss[1][2]. (-)-Hydroxycitric acid (Garcinia acid) is the principal acid of fruit rinds of Garcinia cambogia. (-)-Hydroxycitric acid is a potent and competitive inhibitor of ATP citrate lyase. (-)-Hydroxycitric acid suppresses the fatty acid synthesis, lipogenesis, food intake, and induced weight loss[1][2].

   

3-Hydroxydodecanoic acid

(S)-beta-Hydroxydodecanoic acid

C12H24O3 (216.1725354)


3-Hydroxydodecanoic acid (CAS: 1883-13-2) is a medium-chain fatty acid associated with fatty acid metabolic disorders (PMID: 11948802). Deficiency of medium-chain acyl-CoA dehydrogenase is characterized by an intolerance to prolonged fasting, recurrent episodes of hypoglycemic coma with medium-chain dicarboxylic aciduria, impaired ketogenesis, and low plasma and tissue carnitine levels (OMIM: 201450). 3-Hydroxydodecanoic acid is also a microbial metabolite found in Acinetobacter, Moraxella, and Pseudomonas (PMID: 21687748). 3-Hydroxydodecanoic acid has been identified in the human placenta (PMID: 32033212). 3-Hydroxydodecanoic acid is a medium-chain fatty acid associated with fatty acid metabolic disorders (PMID 11948802). Deficiency of medium-chain acyl-CoA dehydrogenase is characterized by intolerance to prolonged fasting, recurrent episodes of hypoglycemic coma with medium-chain dicarboxylic aciduria, impaired ketogenesis, and low plasma and tissue carnitine levels. (OMIM 201450) [HMDB] 3-Hydroxydodecanoic acid is a medium-chain fatty acid associated with fatty acid metabolic disorders.

   

Succinylacetone

4,6-Dioxoheptanoic acid

C7H10O4 (158.057906)


Succinylacetone, also known as 4,6-dioxoheptanoic acid or SUAC, belongs to the class of compounds known as medium-chain keto acids and derivatives. These are keto acids with 6 to 12 carbon atoms. Succinylacetone is soluble (in water) and a weakly acidic compound (based on its pKa). Succinylacetone has been detected in amniotic fluid, blood, and urine. Within the cell, succinylacetone is primarily located in the cytoplasm (predicted from logP). Succinylacetone can be created by the oxidation of glycine, and is a precursor of methylglyoxal (Wikipedia). Succinylacetone is an abnormal tyrosine metabolite that arises from defects in the enzyme called fumarylacetoacetase (PMID: 16448836). Fumarylacetoacetase normally catalyzes the hydrolysis of 4-fumarylacetoacetate into fumarate and acetoacetate. If present in sufficiently high levels, succinylacetone can act as an acidogen, an oncometabolite, and a metabotoxin. An acidogen is an acidic compound that induces acidosis, which has multiple adverse effects on many organ systems. An oncometabolite is an endogenous metabolite that causes cancer. A metabotoxin is an endogenously produced metabolite that causes adverse health effects at chronically high levels. Chronically high levels of succinylacetone are associated with tyrosinemia type I. Type I tyrosinemia is an inherited metabolism disorder due to a shortage of the enzyme fumarylacetoacetate hydrolase that is needed to break down tyrosine. Patients usually develop features such as hepatic necrosis, renal tubular injury, and hypertrophic cardiomyopathy. Neurologic and dermatologic manifestations are also possible. The urine has an odour of cabbage or rancid butter. Succinylacetone is a keto-acid, which is a subclass of organic acids. Abnormally high levels of organic acids in the blood (organic acidemia), urine (organic aciduria), the brain, and other tissues lead to general metabolic acidosis. Acidosis typically occurs when arterial pH falls below 7.35. In infants with acidosis, the initial symptoms include poor feeding, vomiting, loss of appetite, weak muscle tone (hypotonia), and lack of energy (lethargy). These can progress to heart, liver, and kidney abnormalities, seizures, coma, and possibly death. These are also the characteristic symptoms of untreated tyrosinemia. Many affected children with organic acidemias experience intellectual disability or delayed development. Succinylacetone appears to function as an oncometabolite (similar in function to succinate, another oncometabolite) as patients with high levels of this compound often develop hepatocellular carcinoma (PMID: 20003495). Succinylacetone is a tyrosine metabolite (PMID 16448836). It is a specific marker for Tyrosinemia type I. Type I tyrosinemia is an inherited metabolism disorder due to a shortage of the enzyme fumarylacetoacetate hydrolase that is needed to break down tyrosine. [HMDB] D004791 - Enzyme Inhibitors 4,6-Dioxoheptanoic acid is a potent inhibitor of heme biosynthesis.

   

2,4,6-Trihydroxybenzoic acid

2,4,6-Trihydroxybenzene carboxylic acid

C7H6O5 (170.0215226)


Isolated from onion skin (Allium species). 2,4,6-Trihydroxybenzoic acid is found in garden onion and onion-family vegetables. 2,4,6-Trihydroxybenzoic acid is found in garden onion. 2,4,6-Trihydroxybenzoic acid is isolated from onion skin (Allium sp. 2,4,6-Trihydroxybenzoic acid, the flavonoid metabolite, is a CDK inhibitor. 2,4,6-Trihydroxybenzoic acid can be used for the research of cancer[1].

   

keratan sulfate II (core 2-linked), degradation product 1

Keratan sulphuric acid II (core 2-linked), degradation product 1

C7H6O3 (138.03169259999999)


keratan sulfate II (core 2-linked), degradation product 1, also known as 2,4-Dihydroxybenzaldehyd or beta-Resorcylaldehyde, is classified as a member of the Hydroxybenzaldehydes. Hydroxybenzaldehydes are organic aromatic compounds containing a benzene ring carrying an aldehyde group and a hydroxyl group. keratan sulfate II (core 2-linked), degradation product 1 is considered to be soluble (in water) and acidic 2,4-Dihydroxybenzaldehyde is an endogenous metabolite. 2,4-Dihydroxybenzaldehyde is an endogenous metabolite.

   

3-(3,4,5-Trimethoxyphenyl)propanoic acid

beta -(3,4,5-Trimethoxy phenyl)propionic acid

C12H16O5 (240.0997686)


3-(3,4,5-Trimethoxyphenyl)propanoic acid is found in herbs and spices. 3-(3,4,5-Trimethoxyphenyl)propanoic acid is a constituent of Piper longum (long pepper) and Piper retrofractum (Javanese long pepper) 3-(3,4,5-Trimethoxyphenyl)propanoic acid is found in herbs and spices. 3-(3,4,5-Trimethoxyphenyl)propanoic acid is a constituent of Piper longum (long pepper) and Piper retrofractum (Javanese long pepper). 3-(3,4,5-Trimethoxyphenyl)propanoic acid is found in herbs and spices. 3-(3,4,5-Trimethoxyphenyl)propanoic acid is a constituent of Piper longum (long pepper) and Piper retrofractum (Javanese long pepper).

   

2-Hydroxyhexadecanoic acid

(2S)-2-Hydroxyhexadecanoic acid

C16H32O3 (272.2351322)


2-Hydroxyhexadecanoic acid (CAS: 764-67-0), also known as 2-hydroxypalmitic acid, is a member of the class of compounds known as long-chain fatty acids. Long-chain fatty acids are fatty acids with an aliphatic tail that contains between 13 and 21 carbon atoms. The chain of 2-hydroxyhexadecanoic acid bears a hydroxyl group. 2-Hydroxyhexadecanoic acid is practically insoluble (in water) and a weakly acidic compound (based on its pKa). 2-Hydroxyhexadecanoic acid occurs in wool fat, which is used as a chewing gum softener. 2-Hydroxypalmitic acid is an intermediate in phytosphingosine metabolism[1].

   

3-Hydroxyhippuric acid

2-[(3-Hydroxyphenyl)formamido]acetic acid

C9H9NO4 (195.0531554)


3-Hydroxyhippuric acid is an acyl glycine. Acyl glycines are normally minor metabolites of fatty acids. However, the excretion of certain acyl glycines is increased in several inborn errors of metabolism. In certain cases the measurement of these metabolites in body fluids can be used to diagnose disorders associated with mitochondrial fatty acid beta-oxidation. Acyl glycines are produced through the action of glycine N-acyltransferase (EC 2.3.1.13) which is an enzyme that catalyzes the chemical reaction: acyl-CoA + glycine < -- > CoA + N-acylglycine. 3-Hydroxyhippuric acid is an organic acid found in normal human urine. 3-Hydroxyhippuric acid is a metabolite of rutin detected in urine after consumption of tomato juice (a source of rutin). 3-Hydroxyhippuric acid has its origin in dietary procyanidins (a major source of polyphenols consisting of elementary flavan-3-ol (epi)catechin units). 3-Hydroxyhippuric acid is a microbial aromatic acid metabolite derived from dietary polyphenols and flavonoids, found in normal human urine (PMID: 12592675, 2338430, 17015248, 14556848, 12742116). It is a marker of gut Clostridium species. Higher levels are associated with higher levels of Clostridia (PMID: 27123458). 3-Hydroxyhippuric acid is an acyl glycine. Acyl glycines are normally minor metabolites of fatty acids. However, the excretion of certain acyl glycines is increased in several inborn errors of metabolism. In certain cases the measurement of these metabolites in body fluids can be used to diagnose disorders associated with mitochondrial fatty acid beta-oxidation. Acyl glycines are produced through the action of glycine N-acyltransferase (EC 2.3.1.13) which is an enzyme that catalyzes the chemical reaction: COVID info from PDB, Protein Data Bank Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS 3-Hydroxyhippuric acid is an acyl glycine. Acyl glycines are normally minor metabolites of fatty acids.

   

3-Methylpentanoic acid

2-Methylbutane-1-carboxylic acid

C6H12O2 (116.08372519999999)


(±)-3-Methylpentanoic acid is a flavouring ingredien Flavouring ingredient 3-Methylvaleric Acid is a flavouring ingredient.

   

Senecioic acid

beta,beta-Dimethylacrylic acid

C5H8O2 (100.05242679999999)


Senecioic acid, also known as 3-methylcrotonate, 3-methylcrotonic acid or 3,3-dimethylacrylic acid, belongs to the class of organic compounds known as methyl-branched fatty acids. These are fatty acids with an acyl chain that has a methyl branch. Usually, they are saturated (however senecioic acid is unsaturated) and contain only one or more methyl group. However, branches other than methyl may be present. Senecioic acid is a methyl-branched fatty acid that has a but-2-enoic acid skeleton bearing a methyl substituent at position 3. Senecioic acid is an unsaturated fatty acid found in the pheromones of mealybug species, the Madeira cockroach and the Southern long-nosed bat. It also appears in the urine of patients with 3-Methylcrotonic aciduria caused by 3-hydroxy-3-methylglutaryl-CoA lyase deficiency (PMID: 6157502) and those with 3-Hydroxy-3-methylglutaric aciduria (PMID: 947633). The appearance of 3-methylcrotonic acid in urine indicates a blockage in the sixth step of leucine catabolism, which is the cleavage of 3-hydroxy-3-methylglutaryl-CoA to acetoacetic acid and acetyl-CoA. Flavouring ingredient 3-Methylbut-2-enoic acid is an endogenous metabolite. 3-Methylbut-2-enoic acid is an endogenous metabolite.

   

2'-Aminoacetophenone

2-Aminoacetophenone hydrochloride

C8H9NO (135.0684104)


2-Aminoacetophenone, also known as O-acetylaniline or 1-acetyl-2-aminobenzene, belongs to the class of organic compounds known as alkyl-phenylketones. These are aromatic compounds containing a ketone substituted by one alkyl group, and a phenyl group. 2-Aminoacetophenone exists as a solid, slightly soluble (in water), and an extremely weak acidic (essentially neutral) compound (based on its pKa). Within the cell, 2-aminoacetophenone is primarily located in the cytoplasm. 2-Aminoacetophenone is a sweet, foxy, and grape tasting compound that can be found in fruits and milk and milk products. This makes 2-aminoacetophenone a potential biomarker for the consumption of these food products. 2'-Aminoacetophenone is an aromatic compound containing a ketone substituted by one alkyl group, and a phenyl group. 2'-Aminoacetophenone can be used as a breath biomarker for the detection of Ps. Aeruginosa infections in the cystic fibrosis lung[1].

   

Monoethyl malonic acid

Malonic acid monoethyl ester

C5H8O4 (132.0422568)


Monoethyl malonic acid is an organic acid identified in the urine in a healthy pediatric population. (PMID 14708889) [HMDB] Monoethyl malonic acid is an organic acid identified in the urine in a healthy pediatric population. (PMID 14708889). 3-Ethoxy-3-oxopropanoic acid is an endogenous metabolite. 3-Ethoxy-3-oxopropanoic acid promotes plant growth[1].

   

3-Methyl-2-cyclopenten-1-one

2-cyclopenten-1-one, 3-methyl-

C6H8O (96.0575118)


Flavouring ingredient. 3-Methyl-2-cyclopenten-1-one is found in many foods, some of which are red bell pepper, pepper (c. annuum), orange bell pepper, and green bell pepper. 3-Methyl-2-cyclopenten-1-one is found in pepper (c. annuum). 3-Methyl-2-cyclopenten-1-one is a flavouring ingredien 3-Methyl-2-cyclopenten-1-one is an endogenous metabolite. 3-Methyl-2-cyclopenten-1-one is an endogenous metabolite.

   

1-Hydroxy-2-butanone

Ethyl hydroxymethyl ketone

C4H8O2 (88.0524268)


1-Hydroxy-2-butanone is found in coffee and coffee products. 1-Hydroxy-2-butanone is a constituent of coffee and various edible mushrooms. 1-Hydroxy-2-butanone is a flavouring ingredient Constituent of coffee and various edible mushrooms. Flavouring ingredient. 1-Hydroxy-2-butanone is found in mushrooms and coffee and coffee products. 1-Hydroxy-2-butanone is a natural compound isolated from Bomboo Juice with antitubercular activity[1]. 1-Hydroxy-2-butanone is a natural compound isolated from Bomboo Juice with antitubercular activity[1].

   

3-Phenylbutyric acid

beta-Methylbenzenepropanoic acid

C10H12O2 (164.0837252)


3-Phenylbutyric acid, also known as 3-phenylbutyrate or (RS)-3-phenylbutanoate, belongs to the class of organic compounds known as phenylpropanoic acids. Phenylpropanoic acids are compounds with a structure containing a benzene ring conjugated to a propanoic acid. Adverse effects Nearly 1/4 women may experience an adverse effect of amenorrhea or menstrual dysfunction. Sodium phenylbutyrate can act as a chemical chaperone, stabilising the mutant CFTR in the endoplasmic reticulum and allowing it to reach the cell surface. A 5g tablet or powder of sodium phenylbutyrate taken by mouth can be detected in the blood within 15 minutes, and reaches peak concentration in the bloodstream within an hour. Phenylbutyric acid is a metabolite occasionally isolated from biological samples (PMID 11043786; 6511847), and it is speculated that this is due to a pitfall in quantitative urinary organic acid analysis originated in the irreproducible adsorption to glass as a major cause of errors. (PMID 10384390) [HMDB] 3-Phenylbutyric acid is metabolized by initial oxidation of the benzene ring and by initial oxidation of the side chain. 3-Phenylbutyric acid can be used to isolate Rhodococcus rhodochrous PB1 from compost soil[1][2].

   

3-Methoxybenzenepropanoic acid

3-(3’-Methoxyphenyl)propanoic acid

C10H12O3 (180.0786402)


3-Methoxybenzenepropanoic acid, also known as 3-(3-methoxyphenyl)propionate or 3-methoxydihydrocinnamate, belongs to the class of organic compounds known as phenylpropanoic acids. Phenylpropanoic acids are compounds with a structure containing a benzene ring conjugated to a propanoic acid. 3-Methoxybenzenepropanoic acid is a naturally occurring human metabolite, It is an organic acid and excreted in human urine (PMID: 8087979) [HMDB] 3-(3-Methoxyphenyl)propionic acid is an organic acid, naturally occurring human metabolite and excreted in human urine.

   

2-Phenylbutyric acid

alpha-Ethylbenzeneacetic acid

C10H12O2 (164.0837252)


2-Phenylbutyric acid, also known as alpha-phenylbutyrate or alpha-ethyl-alpha-toluate, belongs to the class of organic compounds known as phenylpropanes. Phenylpropanes are organic compounds containing a phenylpropane moiety. 2-Phenylbutyric acid is slightly soluble (in water) and a weakly acidic compound (based on its pKa). 2-Phenylbutyric acid can be biosynthesized from butyric acid. 2-Phenylbutyric acid is used as an anticholesteremic. C471 - Enzyme Inhibitor > C1946 - Histone Deacetylase Inhibitor C274 - Antineoplastic Agent > C163758 - Targeted Therapy Agent 2-Phenylbutyric acid is used as an anticholesteremic. [HMDB] 2-Phenylbutanoic acid is an endogenous metabolite.

   

(R)-3-Hydroxyisobutyric acid

(2R)-3-Hydroxy-2-methylpropionic acid

C4H8O3 (104.0473418)


(R)-3-Hydroxyisobutyric acid (3-HIBA) is an organic acid. The chiral metabolites 3-hydroxyisobutyric acid (HIBA) and 3-aminoisobutyric acid (AIBA) are intermediates in the pathways of L-valine and thymine and play an important role in the diagnosis of the very rare inherited metabolic diseases 3-hydroxyisobutyric aciduria (OMIM: 236795) and methylmalonic semialdehyde dehydrogenase deficiency (OMIM: 603178) (PMID: 10686279). (R)-3-Hydroxyisobutyric acid has been identified in the human placenta (PMID: 32033212). The chiral metabolites 3-hydroxyisobutyric acid (HIBA) and 3-aminoisobutyric acid (AIBA) are intermediates in the pathways of l-valine and thymine and play an important role in the diagnosis of the very rare inherited metabolic diseases 3-hydroxyisobutyric aciduria (OMIM 236795) and methylmalonic semialdehyde dehydrogenase deficiency (OMIM 603178). (PMID 10686279) [HMDB] 3-Hydroxyisobutyric acid is an important interorgan metabolite, an intermediate in the pathways of l-valine and thymine and a good gluconeogenic substrate.

   

trans-2-Octenoic acid

trans-alpha-octenoic acid

C8H14O2 (142.09937440000002)


trans-2-Octenoic acid or (2E)-oct-2-enoic acid is an olefinic fatty acid that is octanoic acid carrying a double bond at position 2 (the 2E-isomer). It has a role as an animal metabolite. It is a medium-chain fatty acid, a monounsaturated fatty acid, a straight-chain fatty acid and an olefinic fatty acid. It is a conjugate acid of a (2E)-oct-2-enoate. Food flavourant for baked goods and candies (E)-Oct-2-enoic acid is an endogenous metabolite. (E)-Oct-2-enoic acid is an endogenous metabolite.

   

(R)-3-Hydroxydodecanoic acid

(R)-beta-Hydroxydodecanoic acid

C12H24O3 (216.1725354)


In humans fatty acids are predominantly formed in the liver and adipose tissue, and mammary glands during lactation.(R)-3-Hydroxydodecanoic acid is an intermediate in fatty acid biosynthesis. Specifically,(R)-3-Hydroxydodecanoic acid is converted from 3-Oxo-Dodecanoic acid via two enzymes; fatty-acid Synthase and 3-oxoacyl-[acyl-carrier-protein] reductase (EC: 2.3.1.85 and EC: 1.1.1.100) [HMDB] In humans fatty acids are predominantly formed in the liver and adipose tissue, and mammary glands during lactation.(R)-3-Hydroxydodecanoic acid is an intermediate in fatty acid biosynthesis. Specifically,(R)-3-Hydroxydodecanoic acid is converted from 3-Oxo-Dodecanoic acid via two enzymes; fatty-acid Synthase and 3-oxoacyl-[acyl-carrier-protein] reductase (EC: 2.3.1.85 and EC: 1.1.1.100). 12-Hydroxydodecanoic acid is an endogenous metabolite.

   

2-Methylcyclohexanone

alpha-Methylcyclohexanone

C7H12O (112.0888102)


(±)-2-Methylcyclohexanone is a flavouring ingredien It is used as a food additive . 2-Methylcyclohexanone is an endogenous metabolite.

   

2',4'-Dimethylacetophenone

1-(2,4-Dimethylphenyl)ethanone, 9ci

C10H12O (148.08881019999998)


2,4-Dimethylacetophenone is found in tea. 2,4-Dimethylacetophenone is a flavouring ingredien Flavouring ingredient. 2,4-Dimethylacetophenone is found in tea. 2',4'-Dimethylacetophenone is an endogenous metabolite. 2',4'-Dimethylacetophenone is an endogenous metabolite.

   

3-O-Methyl-a-methyldopa

(2S)-2-amino-3-(4-hydroxy-3-methoxyphenyl)propanoic acid

C10H13NO4 (211.0844538)


3-O-Methyl-a-methyldopa is a metabolite of methyldopa. Methyldopa (-α-Methyl-3,4-dihydroxyphenylalanine; Aldomet, Aldoril, Dopamet, Dopegyt, etc. ) is an alpha-adrenergic agonist (selective for α2-adrenergic receptors) psychoactive drug used as a sympatholytic or antihypertensive. Its use is now mostly deprecated following the introduction of alternative safer classes of agents. However, it continues to have a role in otherwise difficult to treat hypertension and gestational hypertension (also known as pregnancy-induced hypertension). (Wikipedia) 3-O-Methyldopa (3-Methoxy-L-tyrosine) is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of l-DOPA and dopamine[1]. 3-O-Methyldopa (3-Methoxy-L-tyrosine) is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of l-DOPA and dopamine[1].

   

4-Carboxypyrazole

1H-pyrazole-4-carboxylic acid

C4H4N2O2 (112.02727639999999)


4-Carboxypyrazole is a metabolite of fomepizole. Fomepizole or 4-methylpyrazole is indicated for use as an antidote in confirmed or suspected methanol or ethylene glycol poisoning. It may be used alone or in combination with hemodialysis. Apart from medical uses, the role of 4-methylpyrazole in coordination chemistry has been studied. (Wikipedia) 4-Carboxypyrazole is an endogenous metabolite.

   

Glyceryl monolinoleate

(+-)-2,3-Dihydroxypropyl (9Z,12Z)-9,12-octadecadienoic acid

C21H38O4 (354.2769948)


1-Linoleoyl Glycerol is a fatty acid glycerol. 1-Linoleoyl Glycerol is a fatty acid glycerol. 1-Linoleoyl Glycerol is a fatty acid glycerol.

   

(Z)-2-Decenoic acid

2-Decenoic acid, (e)-isomer

C10H18O2 (170.1306728)


(Z)-2-decenoic acid (cis-2-Decenoic acid) is an unsaturated fatty acid produced by Pseudomonas aeruginosa. (Z)-2-decenoic acid induces a dispersion response in biofilms formed by a range of gram-negative bacteria, including P. aeruginosa, and by gram-positive bacteria. (Z)-2-decenoic acid inhibits biofilm development[1].

   

(2R,6S)-2,6-Diaminoheptanedioic acid

(2R,6S)-2,6-Diaminoheptanedioic acid

C7H14N2O4 (190.0953524)


Meso-diaminopimelate, also known as diaminopimelic acid or dpm, is a member of the class of compounds known as alpha amino acids. Alpha amino acids are amino acids in which the amino group is attached to the carbon atom immediately adjacent to the carboxylate group (alpha carbon). Meso-diaminopimelate is soluble (in water) and a moderately acidic compound (based on its pKa). Meso-diaminopimelate can be found in a number of food items such as italian sweet red pepper, sweet basil, horseradish, and hickory nut, which makes meso-diaminopimelate a potential biomarker for the consumption of these food products. Meso-diaminopimelate is a characteristic of certain cell walls of some bacteria. Meso-diaminopimelate is often found in the peptide linkages of NAM-NAG chains that make up the cell wall of gram-negative bacteria. When provided, they exhibit normal growth. When in deficiency, they still grow but with the inability to make new cell wall proteoglycan . 2,6-Diaminoheptanedioic acid is an endogenous metabolite.

   

D-Citrulline

2-amino-5-[(C-hydroxycarbonimidoyl)amino]pentanoic acid

C6H13N3O3 (175.0956868)


Citrullin, also known as cit or 2-amino-5-uredovaleric acid, is a member of the class of compounds known as alpha amino acids. Alpha amino acids are amino acids in which the amino group is attached to the carbon atom immediately adjacent to the carboxylate group (alpha carbon). Citrullin is slightly soluble (in water) and a moderately acidic compound (based on its pKa). Citrullin can be found in a number of food items such as cow milk, sesame, orange bell pepper, and pepper (c. frutescens), which makes citrullin a potential biomarker for the consumption of these food products. 2-Amino-5-ureidopentanoic acid is an endogenous metabolite. 2-Amino-5-ureidopentanoic acid is an endogenous metabolite.

   

pyrrolidone carboxylic acid

2-oxopyrrolidine-1-carboxylic acid

C5H7NO3 (129.0425912)


2-Pyrrolidone-5-carboxylic acid (PCA) is a cyclic derivative of glutamic acid, physiologically present in mammalian tissues. It has been shown that PCA releases GABA from the cerebral cortex and displays anti-anxiety effects in a simple approach-avoidance conflict situation in the rat. In clinical pharmacology experiments, PCA significantly shortens the plasma half-life of ethanol during acute intoxication. [HMDB] (R)-5-Oxopyrrolidine-2-carboxylic acid is an endogenous metabolite.

   

Methoxyphenylacetic acid

alpha-Methoxy-alpha-phenylacetic acid

C9H10O3 (166.062991)


Methoxyphenylacetic acid is a member of the class of compounds known as benzylethers. Benzylethers are aromatic ethers with the general formula ROCR (R = alkyl, aryl; R=benzene). Methoxyphenylacetic acid is soluble (in water) and a weakly acidic compound (based on its pKa). Methoxyphenylacetic acid can be found in olive, which makes methoxyphenylacetic acid a potential biomarker for the consumption of this food product. 2-(4-Methoxyphenyl)acetic acid is a plasma metabolite, with high sensitivity and specificity value as a biomarker for discriminating between NSCLC and healthy controls. 2-(4-Methoxyphenyl)acetic acid is a plasma metabolite, with high sensitivity and specificity value as a biomarker for discriminating between NSCLC and healthy controls.

   

3-Hydroxyphenylacetic acid

3-Hydroxyphenylacetic acid

C8H8O3 (152.0473418)


A monocarboxylic acid that is phenylacetic acid in which the hydrogen at position 3 on the benzene ring is replaced by a hydroxy group. COVID info from PDB, Protein Data Bank Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS 3-Hydroxyphenylacetic acid is an endogenous metabolite.

   

3,4-dihydroxyphenylacetic acid

3,4-dihydroxyphenylacetic acid

C8H8O4 (168.0422568)


3,4-Dihydroxybenzeneacetic acid is the main neuronal metabolite of dopamine.

   

3-Indolepropionic acid

3-Indolepropionic acid

C11H11NO2 (189.0789746)


3-Indolepropionic acid is shown to be a powerful antioxidant and has potential in the treatment for Alzheimer’s disease.

   

3-methyl-2-oxovalerate

(3S)-3-Methyl-2-oxopentanoic acid

C6H10O3 (130.062991)


3-Methyl-2-oxovaleric acid is a neurotoxin, an acidogen, and a metabotoxin, and also an abnormal metabolite that arises from the incomplete breakdown of branched-chain amino acids.

   

L-3-Methylhistidine

3-Methyl-L-histidine

C7H11N3O2 (169.0851226)


3-Methyl-L-histidine is a biomarker for meat consumption, especially chicken. It is also a biomarker for the consumption of soy products.

   

Ketovaline

3-Methyl-2-oxobutanoic acid

C5H8O3 (116.0473418)


3-Methyl-2-oxobutanoic acid is a precursor of pantothenic acid in Escherichia coli.

   

2-Hydroxyoctanoic acid

2-Hydroxyoctanoic acid

C8H16O3 (160.10993860000002)


2-Hydroxyoctanoic acid is a medium chain acyl-CoA synthetase inhibitor with a Ki of 500 μM[1]. 2-Hydroxyoctanoic acid is a medium chain acyl-CoA synthetase inhibitor with a Ki of 500 μM[1].

   

2-Hydroxybutyric acid

DL-alpha-Hydroxybutyric acid

C4H8O3 (104.0473418)


(S)-2-Hydroxybutanoic acid is the S-enantiomer of?2-Hydroxybutanoic acid. 2-Hydroxybutanoic acid, a coproduct of protein metabolism, is an insulin resistance (IR) biomarker[1].

   

DL-beta-Hydroxybutyric acid

DL-beta-Hydroxybutyric acid

C4H8O3 (104.0473418)


(R)-3-Hydroxybutanoic acid is a metabolite, and converted from acetoacetic acid catalyzed by 3-hydroxybutyrate dehydrogenase. (R)-3-Hydroxybutanoic acid has applications as a nutrition source and as a precursor for vitamins, antibiotics and pheromones[1][2].

   

cis-Aconitic acid

1-Propene-1,2,3-tricarboxylic acid

C6H6O6 (174.01643760000002)


(Z)-Aconitic acid (cis-Aconitic acid) is the cis-isomer of Aconitic acid. (Z)-Aconitic acid (cis-Aconitic acid) is an intermediate in the tricarboxylic acid cycle produced by the dehydration of citric acid. (Z)-Aconitic acid (cis-Aconitic acid) is the cis-isomer of Aconitic acid. (Z)-Aconitic acid (cis-Aconitic acid) is an intermediate in the tricarboxylic acid cycle produced by the dehydration of citric acid.

   

NMPCA

1,6-Dihydro-1-methyl-6-oxo-3-pyridinecarboxylic acid, 97\\%

C7H7NO3 (153.0425912)


1-Methyl-6-oxo-1,6-dihydropyridine-3-carboxylic acid is from Cordyceps bassiana, which is one of Cordyceps species with anti-oxidative, anti-cancer, anti-inflammatory, anti-diabetic, anti-obesity, anti-angiogenic, and anti-nociceptive activities. 1-Methyl-6-oxo-1,6-dihydropyridine-3-carboxylic acid targets to block AP-1-mediated luciferase activity, implying it has an anti-inflammatory function[1].

   

3,4-Dihydroxybenzeneacetic acid

InChI=1/C8H8O4/c9-6-2-1-5(3-7(6)10)4-8(11)12/h1-3,9-10H,4H2,(H,11,12

C8H8O4 (168.0422568)


3,4-Dihydroxyphenylacetic acid (DOPAC) is a phenolic acid. DOPAC is a neuronal metabolite of dopamine (DA). DA undergoes monoamine oxidase-catalyzed oxidative deamination to 3,4-dihydroxyphenylacetaldehyde (DOPAL), which is metabolized primarily into DOPAC via aldehyde dehydrogenase (ALDH2). The biotransformation of DOPAL is critical as previous studies have demonstrated this DA-derived aldehyde to be a reactive electrophile and toxic to dopaminergic cells. Known inhibitors of mitochondrial ALDH2, such as 4-hydroxy-2-nonenal (4HNE) inhibit ALDH2-mediated oxidation of the endogenous neurotoxin DOPAL. 4HNE is one of the resulting products of oxidative stress, thus linking oxidative stress to the uncontrolled production of an endogenous neurotoxin relevant to Parkinsons disease. In early-onset Parkinson disease, there is markedly reduced activities of both monoamine oxidase (MAO) A and B. The amount of DOPAC, which is produced during dopamine oxidation by MAO, is greatly reduced as a result of increased parkin overexpression. Administration of methamphetamine to animals causes loss of DA terminals in the brain and significant decreases in dopamine and dihydroxyphenylacetic acid (DOPAC) in the striatum. Renal dopamine produced in the residual tubular units may be enhanced during a sodium challenge, thus behaving appropriately as a compensatory natriuretic hormone; however, the renal dopaminergic system in patients afflicted with renal parenchymal disorders should address parameters other than free urinary dopamine, namely the urinary excretion of L-DOPA and metabolites. DOPAC is one of the major phenolic acids formed during human microbial fermentation of tea, citrus, and soy flavonoid supplements. DOPAC exhibits a considerable antiproliferative effect in LNCaP prostate cancer and HCT116 colon cancer cells. The antiproliferative activity of DOPAC may be due to its catechol structure. A similar association of the catechol moiety in the B-ring with antiproliferative activity was demonstrated for flavanones (PMID:16956664, 16455660, 8561959, 11369822, 10443478, 16365058). DOPAC can be found in Gram-positive bacteria (PMID:24752840). (3,4-dihydroxyphenyl)acetic acid is a dihydroxyphenylacetic acid having the two hydroxy substituents located at the 3- and 4-positions. It is a metabolite of dopamine. It has a role as a human metabolite. It is a dihydroxyphenylacetic acid and a member of catechols. It is functionally related to a phenylacetic acid. It is a conjugate acid of a (3,4-dihydroxyphenyl)acetate. 3,4-Dihydroxyphenylacetic acid is a natural product found in Liatris elegans, Tragopogon orientalis, and other organisms with data available. A deaminated metabolite of LEVODOPA. 3,4-Dihydroxyphenylacetic acid (DOPAC) is a metabolite of the neurotransmitter dopamine. 3,4-Dihydroxyphenylacetic acid is found in many foods, some of which are alaska blueberry, cauliflower, ucuhuba, and fox grape. 3,4-Dihydroxybenzeneacetic acid is the main neuronal metabolite of dopamine.

   

NCIOpen2_001552

2-Hydroxy-4-methoxybenzoic acid, 99\\%

C8H8O4 (168.0422568)


4-methoxysalicylic acid is a methoxybenzoic acid. 4-Methoxysalicylic acid is a natural product found in Haplophyllum thesioides, Calophyllum polyanthum, and other organisms with data available. 2-Hydroxy-4-methoxybenzoic acid is a derivative of methoxybenzoic. 2-Hydroxy-4-methoxybenzoic is a potential biomarker. 2-Hydroxy-4-methoxybenzoic acid is a derivative of methoxybenzoic. 2-Hydroxy-4-methoxybenzoic is a potential biomarker.

   

6-Methoxysalicylsaure

InChI=1/C8H8O4/c1-12-6-4-2-3-5(9)7(6)8(10)11/h2-4,9H,1H3,(H,10,11

C8H8O4 (168.0422568)


6-Methoxysalicylic acid is a methoxybenzoic acid. 2-Hydroxy-6-methoxybenzoic acid is a natural product found in Colchicum kurdicum, Colchicum manissadjianii, and other organisms with data available. 2-Hydroxy-6-methoxybenzoic acid can be used for the determination of acetylsalicylic acid and its major metabolite, salicylic acid, in animal plasma. 2-Hydroxy-6-methoxybenzoic acid exhibits significant analgesic effects[1][2]. 2-Hydroxy-6-methoxybenzoic acid can be used for the determination of acetylsalicylic acid and its major metabolite, salicylic acid, in animal plasma. 2-Hydroxy-6-methoxybenzoic acid exhibits significant analgesic effects[1][2].

   

3,4-Di-O-caffeoylquinic acid

Cyclohexanecarboxylic acid, 3,4-bis(((2E)-3-(3,4-dihydroxyphenyl)-1-oxo-2-propen-1-yl)oxy)-1,5-dihydroxy-, (1S,3R,4R,5R)-

C25H24O12 (516.1267703999999)


Isochlorogenic acid b is a quinic acid. 3,4-Dicaffeoylquinic acid is a natural product found in Centaurea bracteata, Strychnos axillaris, and other organisms with data available. See also: Lonicera japonica flower (part of); Stevia rebaudiuna Leaf (part of). Isolated from coffee and maté. 3,4-Dicaffeoylquinic acid is found in many foods, some of which are robusta coffee, arabica coffee, coffee, and coffee and coffee products. 3,4-Di-O-caffeoylquinic acid is found in arabica coffee. 3,4-Di-O-caffeoylquinic acid is isolated from coffe 3,4-Dicaffeoylquinic acid (3,4-Di-O-caffeoylquinic acid), naturally isolated from Laggera alata, has antioxidative, DNA protective, neuroprotective and hepatoprotective properties. 3,4-Dicaffeoylquinic acid exerts apoptosis-mediated cytotoxicity and α-glucosidase inhibitory effects. 3,4-Dicaffeoylquinic acid possesses a unique mechanism of anti-influenza viral activity, that is, enhancing viral clearance by increasing TRAIL[1][2][3]. 3,4-Dicaffeoylquinic acid (3,4-Di-O-caffeoylquinic acid), naturally isolated from Laggera alata, has antioxidative, DNA protective, neuroprotective and hepatoprotective properties. 3,4-Dicaffeoylquinic acid exerts apoptosis-mediated cytotoxicity and α-glucosidase inhibitory effects. 3,4-Dicaffeoylquinic acid possesses a unique mechanism of anti-influenza viral activity, that is, enhancing viral clearance by increasing TRAIL[1][2][3].

   

3,4-Di-O-caffeoylquinic acid

Cyclohexanecarboxylic acid, 3,4-bis(((2E)-3-(3,4-dihydroxyphenyl)-1-oxo-2-propen-1-yl)oxy)-1,5-dihydroxy-, (1S,3R,4R,5R)-

C25H24O12 (516.1267703999999)


Isochlorogenic acid b is a quinic acid. 3,4-Dicaffeoylquinic acid is a natural product found in Centaurea bracteata, Strychnos axillaris, and other organisms with data available. See also: Lonicera japonica flower (part of); Stevia rebaudiuna Leaf (part of). Isolated from coffee and maté. 3,4-Dicaffeoylquinic acid is found in many foods, some of which are robusta coffee, arabica coffee, coffee, and coffee and coffee products. 3,4-Di-O-caffeoylquinic acid is found in arabica coffee. 3,4-Di-O-caffeoylquinic acid is isolated from coffe 3,4-Dicaffeoylquinic acid (3,4-Di-O-caffeoylquinic acid), naturally isolated from Laggera alata, has antioxidative, DNA protective, neuroprotective and hepatoprotective properties. 3,4-Dicaffeoylquinic acid exerts apoptosis-mediated cytotoxicity and α-glucosidase inhibitory effects. 3,4-Dicaffeoylquinic acid possesses a unique mechanism of anti-influenza viral activity, that is, enhancing viral clearance by increasing TRAIL[1][2][3]. 3,4-Dicaffeoylquinic acid (3,4-Di-O-caffeoylquinic acid), naturally isolated from Laggera alata, has antioxidative, DNA protective, neuroprotective and hepatoprotective properties. 3,4-Dicaffeoylquinic acid exerts apoptosis-mediated cytotoxicity and α-glucosidase inhibitory effects. 3,4-Dicaffeoylquinic acid possesses a unique mechanism of anti-influenza viral activity, that is, enhancing viral clearance by increasing TRAIL[1][2][3].

   

UsnicAcid

(2R)-4,10-diacetyl-3,11,13-trihydroxy-2,12-dimethyl-8-oxatricyclo[7.4.0.0^{2,7}]trideca-1(13),3,6,9,11-pentaen-5-one

C18H16O7 (344.0895986)


(-)-usnic acid is the (-)-enantiomer of usnic acid. It has a role as an EC 1.13.11.27 (4-hydroxyphenylpyruvate dioxygenase) inhibitor. It is a conjugate acid of a (-)-usnic acid(2-). It is an enantiomer of a (+)-usnic acid. Usnic acid is a furandione found uniquely in lichen that is used widely in cosmetics, deodorants, toothpaste and medicinal creams as well as some herbal products. Taken orally, usnic acid can be toxic and has been linked to instances of clinically apparent, acute liver injury. (-)-Usnic acid is a natural product found in Dactylina arctica, Evernia divaricata, and other organisms with data available. The (-)-enantiomer of usnic acid. (+)-Usnic acid is isolated from isolated from lichens, binds at the ATP-binding pocket of mTOR, and inhibits mTORC1/2 activity. (+)-Usnic acid inhibits the phosphorylation of mTOR downstream effectors: Akt (Ser473), 4EBP1, S6K, induces autophay, with anti-cancer activity[1]. (+)-Usnic acid possesses antimicrobial activity against a number of planktonic gram-positive bacteria, including Staphylococcus aureus, Enterococcus faecalis, and Enterococcus faecium[2]. (+)-Usnic acid is isolated from isolated from lichens, binds at the ATP-binding pocket of mTOR, and inhibits mTORC1/2 activity. (+)-Usnic acid inhibits the phosphorylation of mTOR downstream effectors: Akt (Ser473), 4EBP1, S6K, induces autophay, with anti-cancer activity[1]. (+)-Usnic acid possesses antimicrobial activity against a number of planktonic gram-positive bacteria, including Staphylococcus aureus, Enterococcus faecalis, and Enterococcus faecium[2]. (+)-Usnic acid is isolated from isolated from lichens, binds at the ATP-binding pocket of mTOR, and inhibits mTORC1/2 activity. (+)-Usnic acid inhibits the phosphorylation of mTOR downstream effectors: Akt (Ser473), 4EBP1, S6K, induces autophay, with anti-cancer activity[1]. (+)-Usnic acid possesses antimicrobial activity against a number of planktonic gram-positive bacteria, including Staphylococcus aureus, Enterococcus faecalis, and Enterococcus faecium[2]. (+)-Usnic acid is isolated from isolated from lichens, binds at the ATP-binding pocket of mTOR, and inhibits mTORC1/2 activity. (+)-Usnic acid inhibits the phosphorylation of mTOR downstream effectors: Akt (Ser473), 4EBP1, S6K, induces autophay, with anti-cancer activity[1]. (+)-Usnic acid possesses antimicrobial activity against a number of planktonic gram-positive bacteria, including Staphylococcus aureus, Enterococcus faecalis, and Enterococcus faecium[2].

   

Pasakbumin C

13beta,21-Dihydroeurycomanone

C20H26O9 (410.15767460000006)


13,21-Dihydroeurycomanone, a natural compound isolated from Eurycoma longifolia root, possesses anti-parasite activity for Plasmodium falciparum and Toxoplasma gondii[1][2].

   

3-ACETYLPHENOL

3-Hydroxyacetophenone

C8H8O2 (136.0524268)


3-Hydroxyacetophenone (m-Hydroxyacetophenone) is the hydroxy-substituted alkyl phenyl ketone that can be used in synthesis of enantiopure (-)-rivastigmine[1][2]. 3-Hydroxyacetophenone (m-Hydroxyacetophenone) is the hydroxy-substituted alkyl phenyl ketone that can be used in synthesis of enantiopure (-)-rivastigmine[1][2].

   

3-Hydroxybenzoicacid

3-Hydroxybenzoic acid

C7H6O3 (138.03169259999999)


A monohydroxybenzoic acid that is benzoic acid substituted by a hydroxy group at position 3. It has been isolated from Taxus baccata. It is used as an intermediate in the synthesis of plasticisers, resins, pharmaceuticals, etc. 3-Hydroxybenzoic acid is an endogenous metabolite. 3-Hydroxybenzoic acid is an endogenous metabolite.

   

3-Methoxygallic acid

3,4-Dihydroxy-5-methoxybenzoic acid

C8H8O5 (184.0371718)


3-O-Methylgallic acid (3,4-Dihydroxy-5-methoxybenzoic acid) is an anthocyanin metabolite and has potent antioxidant capacity. 3-O-methylgallic acid inhibits Caco-2 cell proliferation with an IC50 value of 24.1 μM. 3-O-methylgallic acid also induces cell apoptosis and has anti-cancer effects[1][2]. 3-O-Methylgallic acid (3,4-Dihydroxy-5-methoxybenzoic acid) is an anthocyanin metabolite and has potent antioxidant capacity. 3-O-methylgallic acid inhibits Caco-2 cell proliferation with an IC50 value of 24.1 μM. 3-O-methylgallic acid also induces cell apoptosis and has anti-cancer effects[1][2].

   

Malic acid

(±)-Malic Acid

C4H6O5 (134.0215226)


(S)-Malic acid ((S)-2-Hydroxysuccinic acid) is a dicarboxylic acid in naturally occurring form, contributes to the pleasantly sour taste of fruits and is used as a food additive. (S)-Malic acid ((S)-2-Hydroxysuccinic acid) is a dicarboxylic acid in naturally occurring form, contributes to the pleasantly sour taste of fruits and is used as a food additive. Malic acid (Hydroxybutanedioic acid) is a dicarboxylic acid that is naturally found in fruits such as apples and pears. It plays a role in many sour or tart foods. Malic acid (Hydroxybutanedioic acid) is a dicarboxylic acid that is naturally found in fruits such as apples and pears. It plays a role in many sour or tart foods.

   

Phenyllactic acid

L-(-)-3-Phenyllactic acid

C9H10O3 (166.062991)


(S)-2-Hydroxy-3-phenylpropanoic acid is a product of phenylalanine catabolism. An elevated level of phenyllactic acid is found in body fluids of patients with or phenylketonuria. DL-3-Phenyllactic acid is a broad-spectrum antimicrobial compound. DL-3-Phenyllactic acid is a broad-spectrum antimicrobial compound.

   

2-Hydroxybutyric acid

(±)-2-hydroxybutyric acid

C4H8O3 (104.0473418)


A hydroxybutyric acid having a single hydroxyl group located at position 2; urinary secretion of 2-hydroxybutyric acid is increased with alcohol ingestion or vigorous physical exercise and is associated with lactic acidosis and ketoacidosis in humans and diabetes in animals. (S)-2-Hydroxybutanoic acid is the S-enantiomer of?2-Hydroxybutanoic acid. 2-Hydroxybutanoic acid, a coproduct of protein metabolism, is an insulin resistance (IR) biomarker[1].

   

3-hydroxybutyric acid

DL-beta-Hydroxybutyric acid

C4H8O3 (104.0473418)


3-Hydroxybutanoic acid is a ketone body. It is a chiral compound having two enantiomers. The concentration of beta-hydroxybutyrate, like that of other ketone bodies, is increased in ketosis. In humans, beta-hydroxybutyrate is synthesized in the liver from acetyl-CoA in a reaction catalyzed by the enzyme beta-hydroxybutyrate dehydrogenase and can be used as an energy source by the brain when blood glucose is low. Diabetic patients can have their ketone levels tested via urine or blood to indicate diabetic ketoacidosis. In alcoholic ketoacidosis, this ketone body is produced in greatest concentration. Both types of ketoacidosis result in an increasebeta-hydroxybutyrate to oxaloacetate ratio, resulting in TCA cycle stalling and shifting of glucose towards ketone body production. [Wikipedia] (R)-3-Hydroxybutanoic acid is a metabolite, and converted from acetoacetic acid catalyzed by 3-hydroxybutyrate dehydrogenase. (R)-3-Hydroxybutanoic acid has applications as a nutrition source and as a precursor for vitamins, antibiotics and pheromones[1][2]. 3-Hydroxybutyric acid (β-Hydroxybutyric acid) is a metabolite that is elevated in type I diabetes. 3-Hydroxybutyric acid can modulate the properties of membrane lipids[1]. 3-Hydroxybutyric acid (β-Hydroxybutyric acid) is a metabolite that is elevated in type I diabetes. 3-Hydroxybutyric acid can modulate the properties of membrane lipids[1].

   

3-Methyl-2-oxovaleric acid

(3S)-3-Methyl-2-oxopentanoic acid

C6H10O3 (130.062991)


A 2-oxo monocarboxylic acid that is valeric acid carrying oxo- and methyl substituents at C-2 and C-3, respectively. An alpha-keto acid analogue and metabolite of isoleucine in man, animals and bacteria. Used as a clinical marker for maple syrup urine disease (MSUD). 3-Methyl-2-oxovaleric acid is a neurotoxin, an acidogen, and a metabotoxin, and also an abnormal metabolite that arises from the incomplete breakdown of branched-chain amino acids.

   

13-Methyltetradecanoic acid

13-Methyltetradecanoic acid

C15H30O2 (242.224568)


13-Methyltetradecanoic acid (13-MTD), a saturated branched-chain fatty acid with potent anticancer effects. 13-Methyltetradecanoic acid induces apoptosis in many types of human cancer cells[1][2]. 13-Methyltetradecanoic acid (13-MTD), a saturated branched-chain fatty acid with potent anticancer effects. 13-Methyltetradecanoic acid induces apoptosis in many types of human cancer cells[1][2].

   

4-hydroxyphenyl pyruvate

4-hydroxyphenyl pyruvic acid

C9H8O4 (180.0422568)


4-Hydroxyphenylpyruvic acid is an intermediate in the metabolism of the amino acid phenylalanine. 4-Hydroxyphenylpyruvic acid is an intermediate in the metabolism of the amino acid phenylalanine.

   

Maleamate

Maleamic acid

C4H5NO3 (115.026942)


(Z)-4-Amino-4-oxobut-2-enoic acid is an endogenous metabolite.

   

N-acetyl-GABA

4-Acetamidobutanoic acid

C6H11NO3 (145.0738896)


4-Acetamidobutanoic acid (N-acetyl GABA), the main metabolite of GABA, exhibits antioxidant and antibacterial activities[1]. 4-Acetamidobutanoic acid (N-acetyl GABA), the main metabolite of GABA, exhibits antioxidant and antibacterial activities[1]. 4-Acetamidobutanoic acid (N-acetyl GABA), the main metabolite of GABA, exhibits antioxidant and antibacterial activities[1].

   

4-Hydroxyisoleucine

(2S,3R,4R)-2-amino-4-hydroxy-3-methylpentanoic acid

C6H13NO3 (147.0895388)


(2S,3R,4S)-4-Hydroxyisoleucine is an orally active compound isolated from Trigonella foenum-graecum, with anti-diabetes and anti-diabetic nephropathy activity[1]. (2S,3R,4S)-4-Hydroxyisoleucine is an orally active compound isolated from Trigonella foenum-graecum, with anti-diabetes and anti-diabetic nephropathy activity[1]. 4-Hydroxyisoleucine (4-?Hydroxy-?L-?isoleucine) is an amino acid which can be extracted and purified from fenugreek seeds. 4-Hydroxyisoleucine (4-?Hydroxy-?L-?isoleucine) displays an insulinotropic activity of great interest[1]. 4-Hydroxyisoleucine (4-?Hydroxy-?L-?isoleucine) is an amino acid which can be extracted and purified from fenugreek seeds. 4-Hydroxyisoleucine (4-?Hydroxy-?L-?isoleucine) displays an insulinotropic activity of great interest[1].

   

4-Methoxysalicylic acid

2-Hydroxy-4-methoxybenzoic acid

C8H8O4 (168.0422568)


2-hydroxy-4-methoxybenzoic acid belongs to P-methoxybenzoic acids and derivatives class of compounds. Those are benzoic acids in which the hydrogen atom at position 4 of the benzene ring is replaced by a methoxy group. 2-hydroxy-4-methoxybenzoic acid is slightly soluble (in water) and a weakly acidic compound (based on its pKa). 2-hydroxy-4-methoxybenzoic acid can be found in evening primrose, which makes 2-hydroxy-4-methoxybenzoic acid a potential biomarker for the consumption of this food product. 2-Hydroxy-4-methoxybenzoic acid is a derivative of methoxybenzoic. 2-Hydroxy-4-methoxybenzoic is a potential biomarker. 2-Hydroxy-4-methoxybenzoic acid is a derivative of methoxybenzoic. 2-Hydroxy-4-methoxybenzoic is a potential biomarker.

   

2,3,4-Trihydroxybenzoic acid

2,3,4-Trihydroxybenzoic acid

C7H6O5 (170.0215226)


2,3,4-Trihydroxybenzoic acid is an internal standard in separation of phenolic acids by HPLC. 2,3,4-Trihydroxybenzoic acid is an internal standard in separation of phenolic acids by HPLC.

   

Dihydroxyacetone

1,3-Dihydroxyacetone

C3H6O3 (90.0316926)


A ketotriose consisting of acetone bearing hydroxy substituents at positions 1 and 3. The simplest member of the class of ketoses and the parent of the class of glycerones. 1,3-Dihydroxyacetone (DHA), the main active ingredient in sunless tanning skin-care preparations and an important precursor for the synthesis of various fine chemicals, is produced on an industrial scale by microbial fermentation of glycerol over Gluconobacter oxydans[1]. 1,3-Dihydroxyacetone (DHA), the main active ingredient in sunless tanning skin-care preparations and an important precursor for the synthesis of various fine chemicals, is produced on an industrial scale by microbial fermentation of glycerol over Gluconobacter oxydans[1].

   

3-Methylhistidine

3-Methyl-L-histidine

C7H11N3O2 (169.0851226)


A methylhistidine in which the methyl group is located at N-3. 3-Methyl-L-histidine is a biomarker for meat consumption, especially chicken. It is also a biomarker for the consumption of soy products.

   

2-Hydroxy-6-methoxybenzoic acid

2-Hydroxy-6-methoxybenzoic acid

C8H8O4 (168.0422568)


2-Hydroxy-6-methoxybenzoic acid can be used for the determination of acetylsalicylic acid and its major metabolite, salicylic acid, in animal plasma. 2-Hydroxy-6-methoxybenzoic acid exhibits significant analgesic effects[1][2]. 2-Hydroxy-6-methoxybenzoic acid can be used for the determination of acetylsalicylic acid and its major metabolite, salicylic acid, in animal plasma. 2-Hydroxy-6-methoxybenzoic acid exhibits significant analgesic effects[1][2].

   

L(-)-Carvone

Carvone, (-)-

C10H14O (150.1044594)


A p-menthane monoterpenoid that consists of cyclohex-2-enone having methyl and isopropenyl substituents at positions 2 and 5, respectively. (-)-Carvone is an insect neurotoxin and a irreversible acetylcholinesterase (AChE) inhibitor. (-)-Carvone can be used as a bird repellent, inhibits larval growth, decreases pupatation rate, and increases mortality of larvae[1][2]. (-)-Carvone is an insect neurotoxin and a irreversible acetylcholinesterase (AChE) inhibitor. (-)-Carvone can be used as a bird repellent, inhibits larval growth, decreases pupatation rate, and increases mortality of larvae[1][2]. (-)-Carvone is an insect neurotoxin and a irreversible acetylcholinesterase (AChE) inhibitor. (-)-Carvone can be used as a bird repellent, inhibits larval growth, decreases pupatation rate, and increases mortality of larvae[1][2]. (-)-Carvone is an insect neurotoxin and a irreversible acetylcholinesterase (AChE) inhibitor. (-)-Carvone can be used as a bird repellent, inhibits larval growth, decreases pupatation rate, and increases mortality of larvae[1][2].

   

Menthone

Cyclohexanone, 5-methyl-2-(1-methylethyl)-, (2R,5S)-rel-

C10H18O (154.1357578)


P-menthan-3-one is a p-menthane monoterpenoid that is p-menthane substituted by an oxo group at position 3. It has a role as a plant metabolite and a volatile oil component. p-Menthan-3-one is a natural product found in Citrus hystrix, Mentha aquatica, and other organisms with data available. The trans-stereoisomer of p-menthan-3-one. Flavouring compound [Flavornet] (-)-Menthone is a monoterpene component of the essential oil of maturing peppermint. (+)-Neomenthyl-β-d-glucoside is a metabolite of (-)-Menthone[1].Mortality of two biological forms of Anopheles stephensi(larvae) exposed to about 45 ppm (-)-Menthone is 27.67\\\\\\% and 94.92\\\\\\%. [2] (-)-Menthone is a monoterpene component of the essential oil of maturing peppermint. (+)-Neomenthyl-β-d-glucoside is a metabolite of (-)-Menthone[1].Mortality of two biological forms of Anopheles stephensi(larvae) exposed to about 45 ppm (-)-Menthone is 27.67\\\\\% and 94.92\\\\\%. [2] (-)-Menthone is a monoterpene component of the essential oil of maturing peppermint. (+)-Neomenthyl-β-d-glucoside is a metabolite of (-)-Menthone[1].Mortality of two biological forms of Anopheles stephensi(larvae) exposed to about 45 ppm (-)-Menthone is 27.67\\\\% and 94.92\\\\%. [2] (-)-Menthone is a monoterpene component of the essential oil of maturing peppermint. (+)-Neomenthyl-β-d-glucoside is a metabolite of (-)-Menthone[1].Mortality of two biological forms of Anopheles stephensi(larvae) exposed to about 45 ppm (-)-Menthone is 27.67\\\% and 94.92\\\%. [2] Menthone, a monoterpene extracted from plants and Mentha oil with strong antioxidant properties. Menthone is a main volatile component of the essential oil, and has anti-Inflammatory properties in Schistosoma mansoni Infection[1][2]. Menthone, a monoterpene extracted from plants and Mentha oil with strong antioxidant properties. Menthone is a main volatile component of the essential oil, and has anti-Inflammatory properties in Schistosoma mansoni Infection[1][2].

   

3-O-Acetylhamaudol

3-O-Acetylhamaudol

C17H18O6 (318.11033280000004)


3'-O-Acetylhamaudol, isolated from Angelica polymorpha, exhibits anti-tumor activity through dual actions, anti-angiogenesis and intestinal intraepithelial lymphocyte activation[1].

   

3,4,5-Trimethoxybenzaldehyde

InChI=1/C10H12O4/c1-12-8-4-7(6-11)5-9(13-2)10(8)14-3/h4-6H,1-3H

C10H12O4 (196.0735552)


3,4,5-Trimethoxybenzaldehyde is a natural product found in Zanthoxylum ailanthoides, Cassia grandis, and other organisms with data available. 3,4,5-Trimethoxybenzaldehyde is an intermediate for the synthesis of various pharmaceuticals, especially for trimethoprim used to research bacterial infections, including urinary tract pathogens infection. 3,4,5-Trimethoxybenzaldehyde is an intermediate for the synthesis of various pharmaceuticals, especially for trimethoprim used to research bacterial infections, including urinary tract pathogens infection.

   

2,4,5-Trimethoxybenzoic acid

2,4,5-Trimethoxybenzoic acid

C10H12O5 (212.06847019999998)


2,4,5-Trimethoxybenzoic acid is a compound identified in purple perilla extracts. 2,4,5-Trimethoxybenzoic acid inhibits M1 macrophage phenotype-mediated inflammation in diabetes[1]. 2,4,5-Trimethoxybenzoic acid is a compound identified in purple perilla extracts. 2,4,5-Trimethoxybenzoic acid inhibits M1 macrophage phenotype-mediated inflammation in diabetes[1].

   

2-Methylacetophenone

2-Methylacetophenone

C9H10O (134.073161)


A member of the class of acetophenones that is acetophenone which is substituted by a methyl group at position 2. 2-Methylacetophenone is an endogenous metabolite. 2-Methylacetophenone is an endogenous metabolite.

   

mLG cpd

9,12-Octadecadienoic acid (9Z,12Z)-, monoester with 1,2,3-propanetriol

C21H38O4 (354.2769948)


1-monolinolein is a 1-monoglyceride that has octadecadienoyl (linoleoyl) as the acyl group. It has a role as a plant metabolite and an antiviral agent. It is functionally related to a linoleic acid. Glyceryl monolinoleate is a natural product found in Saposhnikovia divaricata, Hyoscyamus niger, and other organisms with data available. A rac-1-monoacylglycerol that is composed of equal amounts of 1-linoleoyl-sn-glycerol and 3-linoleoyl-sn-glycerol. 1-Linoleoyl Glycerol is a fatty acid glycerol. 1-Linoleoyl Glycerol is a fatty acid glycerol. 1-Linoleoyl Glycerol is a fatty acid glycerol.

   

Camphoric_acid

1,3-Cyclopentanedicarboxylic acid, 1,2,2-trimethyl-, (1S,3R)-

C10H16O4 (200.10485359999998)


(-)-Camphoric acid is the less active enantiomer of Camphoric acid. Camphoric acid stimulates osteoblast differentiation and induces glutamate receptor expression. Camphoric acid also significantly induced the activation of NF-κB and AP-1[1]. (-)-Camphoric acid is the less active enantiomer of Camphoric acid. Camphoric acid stimulates osteoblast differentiation and induces glutamate receptor expression. Camphoric acid also significantly induced the activation of NF-κB and AP-1[1]. (-)-Camphoric acid is the less active enantiomer of Camphoric acid. Camphoric acid stimulates osteoblast differentiation and induces glutamate receptor expression. Camphoric acid also significantly induced the activation of NF-κB and AP-1[1]. (-)-Camphoric acid is the less active enantiomer of Camphoric acid. Camphoric acid stimulates osteoblast differentiation and induces glutamate receptor expression. Camphoric acid also significantly induced the activation of NF-κB and AP-1[1]. (-)-Camphoric acid is the less active enantiomer of Camphoric acid. Camphoric acid stimulates osteoblast differentiation and induces glutamate receptor expression. Camphoric acid also significantly induced the activation of NF-κB and AP-1[1]. (-)-Camphoric acid is the less active enantiomer of Camphoric acid. Camphoric acid stimulates osteoblast differentiation and induces glutamate receptor expression. Camphoric acid also significantly induced the activation of NF-κB and AP-1[1].

   

Hydroxycitric_acid

(-)-HYDROXYCITRIC ACID (CONSTITUENT OF GARCINIA CAMBOGIA AND GARCINIA INDICA) [DSC]

C6H8O8 (208.02191679999999)


Garcinia acid is a carbonyl compound. See also: Garcinia gummi-gutta fruit (part of). (-)-Hydroxycitric acid (Garcinia acid) is the principal acid of fruit rinds of Garcinia cambogia. (-)-Hydroxycitric acid is a potent and competitive and orally active inhibitor of ATP citrate lyase. (-)-Hydroxycitric acid suppresses the fatty acid synthesis, lipogenesis, food intake, and induced weight loss[1][2]. (-)-Hydroxycitric acid (Garcinia acid) is the principal acid of fruit rinds of Garcinia cambogia. (-)-Hydroxycitric acid is a potent and competitive inhibitor of ATP citrate lyase. (-)-Hydroxycitric acid suppresses the fatty acid synthesis, lipogenesis, food intake, and induced weight loss[1][2]. (-)-Hydroxycitric acid (Garcinia acid) is the principal acid of fruit rinds of Garcinia cambogia. (-)-Hydroxycitric acid is a potent and competitive and orally active inhibitor of ATP citrate lyase. (-)-Hydroxycitric acid suppresses the fatty acid synthesis, lipogenesis, food intake, and induced weight loss[1][2]. (-)-Hydroxycitric acid (Garcinia acid) is the principal acid of fruit rinds of Garcinia cambogia. (-)-Hydroxycitric acid is a potent and competitive inhibitor of ATP citrate lyase. (-)-Hydroxycitric acid suppresses the fatty acid synthesis, lipogenesis, food intake, and induced weight loss[1][2].

   

Cyh-chid

1,3-Benzodioxole-5-carboxylic acid, 3a,6,7,7a-tetrahydro-7-hydroxy-2,2-dimethyl-,[3aR-(3aalpha,7alpha,7aalpha)]-

C10H14O5 (214.08411940000002)


3,4-O-Isopropylidene-shikimicn acid is a natural product that can be isolated from the whole plants of Hypericum wightianum. 3,4-O-Isopropylidene-shikimic acid has anti-inflammatory effect and antioxidant activities[1][2].

   

iso-Mentone

(+)-Isomenthone; (2R,5R)-2-Isopropyl-5-methyl-cyclohexanone

C10H18O (154.1357578)


(+)-isomenthone is an isomenthone. It is an enantiomer of a (-)-isomenthone. (+)-Isomenthone is a natural product found in Myrtus communis, Cornus officinalis, and other organisms with data available. (+)-Isomenthone is an isomenthone isolated from Ziziphora clinopodioides Lam.. (+)-Isomenthone is an isomer of L-Menthone[1][2]. (+)-Isomenthone is an isomenthone isolated from Ziziphora clinopodioides Lam.. (+)-Isomenthone is an isomer of L-Menthone[1][2]. (+)-Isomenthone is an isomenthone isolated from Ziziphora clinopodioides Lam.. (+)-Isomenthone is an isomer of L-Menthone[1][2]. (+)-Isomenthone is an isomenthone isolated from Ziziphora clinopodioides Lam.. (+)-Isomenthone is an isomer of L-Menthone[1][2].

   

Garcinia lactone

HYDROXYCITRIC ACID LACTONE (CONSTITUENT OF GARCINIA CAMBOGIA AND GARCINIA INDICA) [DSC]

C6H6O7 (190.0113526)


(+)-garcinia acid is a butan-4-olide and a hydroxy carboxylic acid. It has a role as a metabolite. Hydroxycitric acid lactone is a natural product found in Garcinia gummi-gutta and Garcinia cowa with data available. See also: Garcinia gummi-gutta fruit (part of). A natural product found in Garcinia cambogia. (-)-Hydroxycitric acid lactone (Garcinia lactone) is an anti-obesity agent and a popular weight loss food supplement. (-)-Hydroxycitric acid lactone is a potent inhibitor of ATP-citrate lyase. (-)-Hydroxycitric acid lactone catalyzes the extramitochondrial cleavage of citrate to oxaloacetate and acetyl-CoA, limits the availability of acetyl-CoA units required for fatty acid synthesis[1][2]. (-)-Hydroxycitric acid lactone (Garcinia lactone) is an anti-obesity agent and a popular weight loss food supplement. (-)-Hydroxycitric acid lactone is a potent inhibitor of ATP-citrate lyase. (-)-Hydroxycitric acid lactone catalyzes the extramitochondrial cleavage of citrate to oxaloacetate and acetyl-CoA, limits the availability of acetyl-CoA units required for fatty acid synthesis[1][2]. (-)-Hydroxycitric acid lactone (Garcinia lactone) is an anti-obesity agent and a popular weight loss food supplement. (-)-Hydroxycitric acid lactone is a potent inhibitor of ATP-citrate lyase. (-)-Hydroxycitric acid lactone catalyzes the extramitochondrial cleavage of citrate to oxaloacetate and acetyl-CoA, limits the availability of acetyl-CoA units required for fatty acid synthesis[1][2]. (-)-Hydroxycitric acid lactone (Garcinia lactone) is an anti-obesity agent and a popular weight loss food supplement. (-)-Hydroxycitric acid lactone is a potent inhibitor of ATP-citrate lyase. (-)-Hydroxycitric acid lactone catalyzes the extramitochondrial cleavage of citrate to oxaloacetate and acetyl-CoA, limits the availability of acetyl-CoA units required for fatty acid synthesis[1][2].

   

VCONERRCKOKCHE-UHFFFAOYSA-N

Ethanone, 1-(2,3-dihydroxy-4-methoxyphenyl)-

C9H10O4 (182.057906)


1-(2,3-Dihydroxy-4-methoxyphenyl)ethanone is a natural product found in Paeonia suffruticosa with data available. 2,3-Dihydroxy-4-methoxyacetophenone is a neuroprotective compound from Cynenchum paniculatum. 2,3-Dihydroxy-4-methoxyacetophenone improves cognitive function and may has the potential for the treatment of Alzheimer's disease research[1]. 2,3-Dihydroxy-4-methoxyacetophenone is a neuroprotective compound from Cynenchum paniculatum. 2,3-Dihydroxy-4-methoxyacetophenone improves cognitive function and may has the potential for the treatment of Alzheimer's disease research[1].

   

Ginkgolic acid 17:2

2-[(8E,11E)-heptadeca-8,11-dienyl]-6-hydroxybenzoic acid

C24H36O3 (372.26643060000004)


(E/Z)-Ginkgolic acid C17:2, isolated from Ginkgo biloba, can bind with human dihydroorotate dehydrogenase (DHODH) tightly[1].

   

5-O-Cinnamoylquinic acid

5-O-Cinnamoylquinic acid

C16H18O7 (322.10524780000003)


(E)-5-O-Cinnamoylquinic acid is the isomer of 5-O-Cinnamoylquinic acid. 5-O-Cinnamoylquinic acid is a co-pigment. 5-O-Cinnamoylquinic acid could form the stable blue solution to clarify the mechanism of blue sepal-color development of hydrangea[1][2].

   

13,21-Dihydroeurycomanone

(1R,4R,5R,6S,7R,8R,11R,13S,17S,18S,19R)-4,5,7,8,17-Pentahydroxy-6,14,18-trimethyl-3,10-dioxapentacyclo[9.8.0.01,7.04,19.013,18]nonadec-14-ene-9,16-dione

C20H26O9 (410.15767460000006)


13,21-Dihydroeurycomanone is a natural product found in Eurycoma longifolia with data available. 13,21-Dihydroeurycomanone, a natural compound isolated from Eurycoma longifolia root, possesses anti-parasite activity for Plasmodium falciparum and Toxoplasma gondii[1][2].

   

3,5-DimethoxybenzoicAcid

InChI=1/C9H10O4/c1-12-7-3-6(9(10)11)4-8(5-7)13-2/h3-5H,1-2H3,(H,10,11

C9H10O4 (182.057906)


3,5-dimethoxybenzoic acid is a methoxybenzoic acid that is benzoic acid which is substituted by methoxy groups at positions 3 and 5. It has a role as a plant metabolite. It is a conjugate acid of a 3,5-dimethoxybenzoate. 3,5-Dimethoxybenzoic acid is a natural product found in Melia azedarach and Calophyllum polyanthum with data available. A methoxybenzoic acid that is benzoic acid which is substituted by methoxy groups at positions 3 and 5. 3,5-Dimethoxybenzoic acid, isolated from Melia azedarach L. leaves with antifungal activity, is an intermediate in organic synthesis[1]. 3,5-Dimethoxybenzoic acid, isolated from Melia azedarach L. leaves with antifungal activity, is an intermediate in organic synthesis[1].

   

2,5-Dimethoxybenzoicacid

InChI=1/C9H10O4/c1-12-6-3-4-8(13-2)7(5-6)9(10)11/h3-5H,1-2H3,(H,10,11

C9H10O4 (182.057906)


2,5-Dimethoxybenzoic acid is an intermediate used in the synthesis of the galbulimima alkaloid GB 13[1].

   

Oprea1_468323

InChI=1/C11H14O5/c1-14-8-4-7(6-10(12)13)5-9(15-2)11(8)16-3/h4-5H,6H2,1-3H3,(H,12,13

C11H14O5 (226.08411940000002)


2-(3,4,5-trimethoxyphenyl)acetic acid is a member of methoxybenzenes. 3,4,5-Trimethoxyphenylacetic acid is a metabolite of Mescaline[1].

   

4-Acetyl-3-methylphenol

4 inverted exclamation marka-Hydroxy-2 inverted exclamation marka-methylacetophenone

C9H10O2 (150.06807600000002)


4-hydroxy-2-methylacetophenone is a member of the class of acetophenones that is acetophenone substituted by a hydroxy group at position 4 and a methyl group at position 2 respectively. It has a role as a metabolite. It is a member of acetophenones and a member of phenols. A member of the class of acetophenones that is acetophenone substituted by a hydroxy group at position 4 and a methyl group at position 2 respectively. 4′-Hydroxy-2′-methylacetophenone, an aroma compound of red wines, is isolated from cv. Bobal grape variety. 4′-Hydroxy-2′-methylacetophenone has ciliate toxicity. 4′-Hydroxy-2′-methylacetophenone inhibits the growth of T. pyriformis, with an IC50 of 0.65 mM[1][2]. 4′-Hydroxy-2′-methylacetophenone, an aroma compound of red wines, is isolated from cv. Bobal grape variety. 4′-Hydroxy-2′-methylacetophenone has ciliate toxicity. 4′-Hydroxy-2′-methylacetophenone inhibits the growth of T. pyriformis, with an IC50 of 0.65 mM[1][2].

   

ghl.PD_Mitscher_leg0.841

2-Methyl-1,3-cyclopentanedione, 99\\%

C6H8O2 (112.05242679999999)


2-Methylcyclopentane-1,3-dione is a key intermediate for the total synthesis of steroids[1]. 2-Methylcyclopentane-1,3-dione is a key intermediate for the total synthesis of steroids[1].

   

4,4-dimethylcyclopent-2-enone

4,4-Dimethyl-2-cyclopenten-1-one, 99\\%

C7H10O (110.07316100000001)


4,4-Dimethyl-2-cyclopenten-1-one is a natural product found in Perilla frutescens with data available. 4,4-Dimethyl-2-cyclopenten-1-one, a natural compound from Apocyniveneti Folium, displays higher tumor-specific cytotoxicity[1]. 4,4-Dimethyl-2-cyclopenten-1-one, a natural compound from Apocyniveneti Folium, displays higher tumor-specific cytotoxicity[1].

   

asaronic acid

InChI=1/C10H12O5/c1-13-7-5-9(15-3)8(14-2)4-6(7)10(11)12/h4-5H,1-3H3,(H,11,12

C10H12O5 (212.06847019999998)


2,4,5-Trimethoxybenzoic acid is a methoxybenzoic acid. 2,4,5-Trimethoxybenzoic acid is a natural product found in Alpinia flabellata with data available. 2,4,5-Trimethoxybenzoic acid is a compound identified in purple perilla extracts. 2,4,5-Trimethoxybenzoic acid inhibits M1 macrophage phenotype-mediated inflammation in diabetes[1]. 2,4,5-Trimethoxybenzoic acid is a compound identified in purple perilla extracts. 2,4,5-Trimethoxybenzoic acid inhibits M1 macrophage phenotype-mediated inflammation in diabetes[1].

   

3-Hydroxyacetophenone

Etilefrine Hydrochloride Imp. E (EP); Etilefrine Imp. E (EP); 1-(3-Hydroxyphenyl)ethanone; 3-Hydroxyacetophenone; Etilefrine Hydrochloride Impurity E; Etilefrine Impurity E

C8H8O2 (136.0524268)


3-Hydroxyacetophenone is a natural product found in Vincetoxicum paniculatum, Dianthus caryophyllus, and other organisms with data available. 3-Hydroxyacetophenone (m-Hydroxyacetophenone) is the hydroxy-substituted alkyl phenyl ketone that can be used in synthesis of enantiopure (-)-rivastigmine[1][2]. 3-Hydroxyacetophenone (m-Hydroxyacetophenone) is the hydroxy-substituted alkyl phenyl ketone that can be used in synthesis of enantiopure (-)-rivastigmine[1][2].

   

3-Phenoxybenzoic acid

3-Phenoxybenzoic acid

C13H10O3 (214.062991)


A phenoxybenzoic acid in which the phenoxy group is meta to the carboxy group. It is a metabolite of pyrethroid insecticides. CONFIDENCE standard compound; INTERNAL_ID 965; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4541; ORIGINAL_PRECURSOR_SCAN_NO 4540 CONFIDENCE standard compound; INTERNAL_ID 965; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4560; ORIGINAL_PRECURSOR_SCAN_NO 4559 CONFIDENCE standard compound; INTERNAL_ID 965; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4529; ORIGINAL_PRECURSOR_SCAN_NO 4528 CONFIDENCE standard compound; INTERNAL_ID 965; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4551; ORIGINAL_PRECURSOR_SCAN_NO 4547 CONFIDENCE standard compound; INTERNAL_ID 965; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4585; ORIGINAL_PRECURSOR_SCAN_NO 4582 CONFIDENCE standard compound; INTERNAL_ID 965; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4583; ORIGINAL_PRECURSOR_SCAN_NO 4581 CONFIDENCE standard compound; EAWAG_UCHEM_ID 326 CONFIDENCE standard compound; INTERNAL_ID 2005 3-Phenoxybenzoic acid is an endogenous metabolite.

   

m-Anisic-acid

3-METHOXYBENZOIC ACID

C8H8O3 (152.0473418)


[Raw Data] CB243_m-Anisic-acid_pos_50eV_rep000008.txt [Raw Data] CB243_m-Anisic-acid_pos_40eV_rep000008.txt [Raw Data] CB243_m-Anisic-acid_pos_30eV_rep000008.txt [Raw Data] CB243_m-Anisic-acid_pos_20eV_rep000008.txt [Raw Data] CB243_m-Anisic-acid_pos_10eV_rep000008.txt 3-Methoxybenzoic acid can be used in the synthesis of 3-methoxybenzoates of europium (III) and gadolinium (III).

   

2-Hydroxyisobutyrate

2-HYDROXYISOBUTYRIC ACID

C4H8O3 (104.0473418)


KEIO_ID H026 2-Hydroxyisobutyric acid is an endogenous metabolite.

   

2-Hydroxyoctanoate

2-Hydroxyoctanoic acid

C8H16O3 (160.10993860000002)


KEIO_ID H035 2-Hydroxyoctanoic acid is a medium chain acyl-CoA synthetase inhibitor with a Ki of 500 μM[1]. 2-Hydroxyoctanoic acid is a medium chain acyl-CoA synthetase inhibitor with a Ki of 500 μM[1].

   

2-Hydroxyhexanoate

Hexanoic acid,2-hydroxy-

C6H12O3 (132.0786402)


KEIO_ID H036 2-Hydroxyhexanoic acid is an endogenous metabolite.

   

D-3-Methylhistidine

3-Methyl-L-histidine

C7H11N3O2 (169.0851226)


KEIO_ID M077 3-Methyl-L-histidine is a biomarker for meat consumption, especially chicken. It is also a biomarker for the consumption of soy products.

   

undecenoic acid

10c-Undecenoic acid

C11H20O2 (184.14632200000003)


D - Dermatologicals > D01 - Antifungals for dermatological use > D01A - Antifungals for topical use C254 - Anti-Infective Agent > C514 - Antifungal Agent 10-Undecenoic acid is used as a starting agent in the synthesis of Pheromone (11Z)-hexadecenal. 10-Undecenoic acid is used as a starting agent in the synthesis of Pheromone (11Z)-hexadecenal.

   

1-Monolinolein

alpha-Glyceryl linoleate

C21H38O4 (354.2769948)


A 1-monoglyceride that has octadecadienoyl (linoleoyl) as the acyl group. 1-Linoleoyl Glycerol is a fatty acid glycerol. 1-Linoleoyl Glycerol is a fatty acid glycerol. 1-Linoleoyl Glycerol is a fatty acid glycerol.

   

Aspartate

L-Aspartic Acid

C4H7NO4 (133.0375062)


Acquisition and generation of the data is financially supported by the Max-Planck-Society (-)-Aspartic acid is an endogenous NMDA receptor agonist. (-)-Aspartic acid is an endogenous NMDA receptor agonist. (-)-Aspartic acid is an endogenous NMDA receptor agonist. (-)-Aspartic acid is an endogenous NMDA receptor agonist. L-Aspartic acid is is an amino acid, shown to be a suitable proagent for colon-specific agent deliverly. L-Aspartic acid is is an amino acid, shown to be a suitable proagent for colon-specific agent deliverly.

   

2,5-Dihydroxybenzoic acid

"2,5-Dihydroxybenzoic acid"

C7H6O4 (154.0266076)


D000893 - Anti-Inflammatory Agents > D000894 - Anti-Inflammatory Agents, Non-Steroidal > D012459 - Salicylates Profile spectrum of this record is given as a JPEG file.; [Profile] MCH00007.jpg Profile spectrum of this record is given as a JPEG file.; [Profile] MCH00006.jpg Profile spectrum of this record is given as a JPEG file.; [Profile] MCH00002.jpg 2,5-Dihydroxybenzoic acid is a derivative of benzoic and a powerful inhibitor of fibroblast growth factors. 2,5-Dihydroxybenzoic acid is a derivative of benzoic and a powerful inhibitor of fibroblast growth factors.

   

3-HYDROXYPICOLINIC ACID

3-HYDROXYPICOLINIC ACID

C6H5NO3 (139.02694200000002)


COVID info from PDB, Protein Data Bank Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Profile spectrum of this record is given as a JPEG file.; [Profile] MCH00011.jpg Profile spectrum of this record is given as a JPEG file.; [Profile] MCH00010.jpg 3-Hydroxypicolinic acid is a picolinic acid derivative, and belongs to the pyridine family.

   

3,4-Dimethoxycinnamic acid

3,4-Dimethoxycinnamic acid

C11H12O4 (208.0735552)


Annotation level-1 Acquisition and generation of the data is financially supported in part by CREST/JST. (E)-3,4-Dimethoxycinnamic acid is the less active isomer of 3,4-Dimethoxycinnamic acid. 3,4-Dimethoxycinnamic acid exerts anti-apoptotic effects on L-02 cells via the ROS-mediated signaling pathway[1]. Anti-apoptotic effects[1]. (E)-3,4-Dimethoxycinnamic acid is the less active isomer of 3,4-Dimethoxycinnamic acid. 3,4-Dimethoxycinnamic acid exerts anti-apoptotic effects on L-02 cells via the ROS-mediated signaling pathway[1]. Anti-apoptotic effects[1]. 3,4-Dimethoxycinnamic acid (O-Methylferulic acid) is a monomer extracted and purified from Securidaca inappendiculata Hassk. 3,4-Dimethoxycinnamic acid exerts anti-apoptotic effects on L-02 cells via the ROS-mediated signaling pathway[1]. Anti-apoptotic effects[1]. 3,4-Dimethoxycinnamic acid (O-Methylferulic acid) is a monomer extracted and purified from Securidaca inappendiculata Hassk. 3,4-Dimethoxycinnamic acid exerts anti-apoptotic effects on L-02 cells via the ROS-mediated signaling pathway[1]. Anti-apoptotic effects[1].

   

alpha-Hydroxyisobutyric acid

alpha-Hydroxyisobutyric acid

C4H8O3 (104.0473418)


A 2-hydroxy monocarboxylic acid that is isobutyric acid bearing a hydroxy substituent at position 2. It is a metabolite of methyl tertiary-butyl ether. Acquisition and generation of the data is financially supported in part by CREST/JST. 2-Hydroxyisobutyric acid is an endogenous metabolite.

   

3-Chloro-L-tyrosine

3-chloro-l-tyrosine hydrochloride

C9H10ClNO3 (215.034918)


A chloroamino acid comprising a tyrosine core with a chloro- substituent ortho to the phenolic hydroxy group. D004791 - Enzyme Inhibitors Acquisition and generation of the data is financially supported in part by CREST/JST. 3-Chloro-L-tyrosine is a specific marker of myeloperoxidase-catalyzed oxidation, and is markedly elevated in low density lipoprotein isolated from human atherosclerotic intima.

   

Methylsuccinic acid

(2S)-2-methylbutanedioic acid

C5H8O4 (132.0422568)


Acquisition and generation of the data is financially supported in part by CREST/JST. 2-Methylsuccinic acid is a normal metabolite in human fluids and the main biochemical measurable features in ethylmalonic encephalopathy.

   

2-Methylglutaric acid

(2R)-2-Methylpentanedioic acid

C6H10O4 (146.057906)


An alpha,omega-dicarboxylic acid that is glutaric acid substituted at position 2 by a methyl group. Acquisition and generation of the data is financially supported in part by CREST/JST. 2-Methylpentanedioic acid is a metabolite of succinic acid, a citric acid cycle intermediate.

   

3-Hydroxymandelic acid

3-Hydroxymandelic acid

C8H8O4 (168.0422568)


D000890 - Anti-Infective Agents > D000892 - Anti-Infective Agents, Urinary > D008333 - Mandelic Acids A 2-hydroxy monocarboxylic acid that is mandelic acid substituted by a hydroxy group at position 3. Acquisition and generation of the data is financially supported in part by CREST/JST. 3-Hydroxymandelic Acid, a metabolite of Phenylephrine, Phenylephrine is a α-receptor agonist.

   

2-Deoxycytidine 5-monophosphate

2-Deoxycytidine-5-monophosphoric acid

C9H14N3O7P (307.0569344)


relative retention time with respect to 9-anthracene Carboxylic Acid is 0.054 2'-Deoxycytidine-5'-monophosphoric acid is an endogenous metabolite. 2'-Deoxycytidine-5'-monophosphoric acid is an endogenous metabolite.

   

Deoxyadenosine monophosphate

2-DEOXYADENOSINE-5-monophosphoric acid

C10H14N5O6P (331.06816740000005)


COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS relative retention time with respect to 9-anthracene Carboxylic Acid is 0.057 relative retention time with respect to 9-anthracene Carboxylic Acid is 0.056 2′-Deoxyadenosine 5′-monophosphate, a nucleic acid AMP derivative, is a deoxyribonucleotide found in DNA. 2′-Deoxyadenosine 5′-monophosphate can be used to study adenosine-based interactions during DNA synthesis and DNA damage[1]. 2′-Deoxyadenosine 5′-monophosphate, a nucleic acid AMP derivative, is a deoxyribonucleotide found in DNA. 2′-Deoxyadenosine 5′-monophosphate can be used to study adenosine-based interactions during DNA synthesis and DNA damage[1].

   

Kynurenine

(2R)-6-methoxy-2-phenyl-2,3-dihydrochromen-4-one

C10H12N2O3 (208.0847882)


A ketone that is alanine in which one of the methyl hydrogens is substituted by a 2-aminobenzoyl group. relative retention time with respect to 9-anthracene Carboxylic Acid is 0.061 relative retention time with respect to 9-anthracene Carboxylic Acid is 0.060 2-Amino-4-(2-aminophenyl)-4-oxobutanoic acid is an endogenous metabolite. L-Kynurenine is a metabolite of the amino acid L-tryptophan. L-Kynurenine is an aryl hydrocarbon receptor agonist.

   

3-Aminoisobutanoate

3-Aminoisobutanoic acid

C4H9NO2 (103.0633254)


3-Amino-2-methylpropanoic acid could induce browning of white fat and hepatic β-oxidation and is inversely correlated with cardiometabolic risk factors.

   

DL-2,6-Diaminopimelic acid

DL-alpha,epsilon-Diaminopimelic acid

C7H14N2O4 (190.0953524)


2,6-Diaminoheptanedioic acid is an endogenous metabolite.

   

(2-Aminoethyl)phosphonate

(2-Aminoethyl)phosphonic acid

C2H8NO3P (125.0241788)


(2-Aminoethyl)phosphonic acid is an endogenous metabolite.

   

1-Methyl-L-histidine

N(PAI)-METHYL-L-HISTIDINE

C7H11N3O2 (169.0851226)


1-Methyl-L-histidine is an objective indicator of meat ingestion and exogenous 3-methylhistidine (3MH) intake. 1-Methyl-L-histidine is an objective indicator of meat ingestion and exogenous 3-methylhistidine (3MH) intake.

   

4-Acetamidobutanoate

4-Acetamidobutanoic acid

C6H11NO3 (145.0738896)


4-Acetamidobutanoic acid (N-acetyl GABA), the main metabolite of GABA, exhibits antioxidant and antibacterial activities[1]. 4-Acetamidobutanoic acid (N-acetyl GABA), the main metabolite of GABA, exhibits antioxidant and antibacterial activities[1]. 4-Acetamidobutanoic acid (N-acetyl GABA), the main metabolite of GABA, exhibits antioxidant and antibacterial activities[1].

   

1-Aminocyclopropane-1-carboxylate

1-Aminocyclopropane-1-carboxylic acid

C4H7NO2 (101.0476762)


1-Aminocyclopropane-1-carboxylic acid is an endogenous metabolite.

   

Na-Acetyl-L-asparagine

N-ALPHA-ACETYL-L-ASPARAGINE

C6H10N2O4 (174.064054)


(S)-2-acetamido-4-amino-4-oxobutanoic acid is an endogenous metabolite.

   

Methylglutaric acid

3-METHYLGLUTARIC ACID

C6H10O4 (146.057906)


An alpha,omega-dicarboxylic acid that is glutaric acid substituted at position 3 by a methyl group. 3-Methylglutaric acid, a leucine metabolite, is a conspicuous C6 dicarboxylic organic acid classically associated with two distinct leucine pathway enzyme deficiencies, 3-hydroxy-3-methylglutaryl CoA lyase (HMGCL) and 3-methylglutaconyl CoA hydratase (AUH)[1][2].

   

4-Hydroxyphenylpyruvic acid

4-Hydroxyphenylpyruvic acid

C9H8O4 (180.0422568)


A 2-oxo monocarboxylic acid that is pyruvic acid in which one of the methyl hydrogens is substituted by a 4-hydroxyphenyl group. 4-Hydroxyphenylpyruvic acid (4-HPPA) is a keto acid. It is a product of the enzyme (R)-4-hydroxyphenyllactate dehydrogenase [EC 1.1.1.222] and is formed during tyrosine metabolism (KEGG). There are two isomers of HPPA, specifically 4HPPA and 3HPPA, of which 4HPPA is the most common. The enzyme 4-hydroxyphenylpyruvic acid dioxygenase (HPD) catalyzes the reaction of 4-hydroxyphenylpyruvic acid to homogentisic acid in the tyrosine catabolism pathway. A deficiency in the catalytic activity of HPD is known to lead to tyrosinemia type III, an autosomal recessive disorder characterized by elevated levels of blood tyrosine and massive excretion of tyrosine derivatives into urine. It has been shown that hawkinsinuria, an autosomal dominant disorder characterized by the excretion of hawkinsin, may also be a result of HPD deficiency (PMID: 11073718). [HMDB] 4-Hydroxyphenylpyruvic acid is an intermediate in the metabolism of the amino acid phenylalanine. 4-Hydroxyphenylpyruvic acid is an intermediate in the metabolism of the amino acid phenylalanine.

   

D-Aspartate

D-Aspartate

C4H7NO4 (133.0375062)


(-)-Aspartic acid is an endogenous NMDA receptor agonist. (-)-Aspartic acid is an endogenous NMDA receptor agonist. (-)-Aspartic acid is an endogenous NMDA receptor agonist. (-)-Aspartic acid is an endogenous NMDA receptor agonist.

   

L-Malic acid

(2S)-2-hydroxybutanedioic acid

C4H6O5 (134.0215226)


An optically active form of malic acid having (S)-configuration. Occurs naturally in apples and various other fruits. Flavour enhancer, pH control agent. L-Malic acid is found in many foods, some of which are mulberry, black cabbage, european plum, and fig. (S)-Malic acid ((S)-2-Hydroxysuccinic acid) is a dicarboxylic acid in naturally occurring form, contributes to the pleasantly sour taste of fruits and is used as a food additive. (S)-Malic acid ((S)-2-Hydroxysuccinic acid) is a dicarboxylic acid in naturally occurring form, contributes to the pleasantly sour taste of fruits and is used as a food additive.

   

D-Pyroglutamic acid

Pyrrolidonecarboxylic acid

C5H7NO3 (129.0425912)


The D-enantiomer of 5-oxoproline. (R)-5-Oxopyrrolidine-2-carboxylic acid is an endogenous metabolite.

   

Homocystine

4,4-Dithiobis[2-aminobutyric Acid]

C8H16N2O4S2 (268.0551456)


An organic disulfide obtained by oxidative dimerisation of homocysteine. 4,4'-Disulfanediylbis(2-aminobutanoic acid) is an endogenous metabolite.

   

10-Hydroxydecanoate

10-Hydroxydecanoic acid

C10H20O3 (188.14123700000002)


10-Hydroxydecanoic acid (NSC 15139) is a saturated fatty acid of 10-hydroxy-trans-2-decenoic acid from royal jelly, with anti-inflammatory activity[1].

   

3,4-dihydroxyphenylacetic acid

3,4-Dihydroxybenzeneacetic acid

C8H8O4 (168.0422568)


3,4-Dihydroxybenzeneacetic acid is the main neuronal metabolite of dopamine.

   

3-Hydroxyanthranilate

3-Hydroxyanthranilic acid

C7H7NO3 (153.0425912)


3-Hydroxyanthranilic acid is a tryptophan metabolite in the kynurenine pathway.

   

4-Aminobenzoate

4-Aminobenzoic acid

C7H7NO2 (137.0476762)


4-Aminobenzoic acid is an intermediate in the synthesis of folic acid by bacteria, plants and fungi. 4-Aminobenzoic acid is an intermediate in the synthesis of folic acid by bacteria, plants and fungi.

   

3-Hydroxybenzoate

3-Hydroxybenzoicacid

C7H6O3 (138.03169259999999)


3-Hydroxybenzoic acid is an endogenous metabolite. 3-Hydroxybenzoic acid is an endogenous metabolite.

   

3-Hydroxyphenylacetate

3-Hydroxyphenylacetic acid

C8H8O3 (152.0473418)


3-Hydroxyphenylacetic acid is an endogenous metabolite.

   

1-Aminocyclopropane-1-carboxylic acid

1-Aminocyclopropane-1-carboxylic acid

C4H7NO2 (101.0476762)


1-Aminocyclopropane-1-carboxylic acid is an endogenous metabolite.

   

4-Aminobenzoic acid

4-Aminobenzoic acid

C7H7NO2 (137.0476762)


D - Dermatologicals > D02 - Emollients and protectives > D02B - Protectives against uv-radiation > D02BA - Protectives against uv-radiation for topical use An aminobenzoic acid in which the amino group is para to the carboxy group. 4-Aminobenzoic acid is an intermediate in the synthesis of folic acid by bacteria, plants and fungi. 4-Aminobenzoic acid is an intermediate in the synthesis of folic acid by bacteria, plants and fungi.

   

2-Aminoethylphosphonic acid

(2-Aminoethyl)phosphonic acid

C2H8NO3P (125.0241788)


(2-Aminoethyl)phosphonic acid is an endogenous metabolite.

   

L-Homocystine

4,4-Dithiobis[2-aminobutyric Acid]

C8H16N2O4S2 (268.0551456)


A homocystine in which both chiral centres have L configuration. 4,4'-Disulfanediylbis(2-aminobutanoic acid) is an endogenous metabolite. L-Homocystine is the oxidized member of the L-homocysteine. Homocysteine is a pro-thrombotic factor, vasodilation impairing agent, pro-inflammatory factor and endoplasmatic reticulum-stress inducer used to study cardiovascular disease mechanisms.

   

3-Methyl-L-histidine

N(pros)-Methyl-L-histidine

C7H11N3O2 (169.0851226)


A L-histidine derivative that is L-histidine substituted by a methyl group at position 3 on the imidazole ring. 3-Methylhistidine is a product of peptide bond synthesis and methylation of actin and myosin. The measurement of 3-Methylhistidine provides an index of the rate of muscle protein breakdown. [HMDB]. 3-Methylhistidine is a biomarker for meat consumption, especially chicken. It is also a biomarker for the consumption of soy products. 3-Methyl-L-histidine is a biomarker for meat consumption, especially chicken. It is also a biomarker for the consumption of soy products.

   

3-Aminoisobutanoic acid

dl-3-Aminoisobutyric acid

C4H9NO2 (103.0633254)


3-Amino-2-methylpropanoic acid could induce browning of white fat and hepatic β-oxidation and is inversely correlated with cardiometabolic risk factors.

   

3,4-Dihydroxymandelic acid

dl-3,4-dihydroxymandelic acid

C8H8O5 (184.0371718)


D000890 - Anti-Infective Agents > D000892 - Anti-Infective Agents, Urinary > D008333 - Mandelic Acids A catechol that is the 3,4-dihydroxy derivative of mandelic acid; a metabolite of L-dopa. 3,4-Dihydroxymandelic acid is a metabolite of norepinephrine.

   

cis-Aconitic acid

1-Propene-1,2,3-tricarboxylic acid

C6H6O6 (174.01643760000002)


The cis-isomer of aconitic acid. (Z)-Aconitic acid (cis-Aconitic acid) is the cis-isomer of Aconitic acid. (Z)-Aconitic acid (cis-Aconitic acid) is an intermediate in the tricarboxylic acid cycle produced by the dehydration of citric acid. (Z)-Aconitic acid (cis-Aconitic acid) is the cis-isomer of Aconitic acid. (Z)-Aconitic acid (cis-Aconitic acid) is an intermediate in the tricarboxylic acid cycle produced by the dehydration of citric acid.

   

2-Hydroxyphenylacetic acid

ortho-Hydroxyphenylacetic acid

C8H8O3 (152.0473418)


COVID info from PDB, Protein Data Bank Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS 2-Hydroxyphenylacetic acid is a potential biomarker for the food products, and found to be associated with phenylketonuria (PKU). 2-Hydroxyphenylacetic acid is a potential biomarker for the food products, and found to be associated with phenylketonuria (PKU). D-(-)-Mandelic acid is a natural compound isolated from bitter almonds. D-(-)-Mandelic acid is a natural compound isolated from bitter almonds.

   

2-Oxobutyric acid

Sodium 2-Oxobutyrate

C4H6O3 (102.0316926)


A 2-oxo monocarboxylic acid that is the 2-oxo derivative of butanoic acid. 2-Oxobutanoic acid is a product in the enzymatic cleavage of cystathionine.

   

2-Oxovaleric acid

2-Oxopentanoic acid

C5H8O3 (116.0473418)


An oxopentanoic acid carrying an oxo group at position 2. 2-Oxovaleric acid is a keto acid that is found in human blood.

   

2,6-Dihydroxyacetophenone

2,6-Dihydroxyacetophenone

C8H8O3 (152.0473418)


2,6-Dihydroxyacetophenone is an endogenous metabolite. 2,6-Dihydroxyacetophenone is an endogenous metabolite.

   

Isochlorogenic acid C

4,5-Dicaffeoylquinic acids

C25H24O12 (516.1267703999999)


4,5-Dicaffeoylquinic acid (Isochlorogenic acid C) is an antioxidant, can be isolated from Gynura divaricata and Laggera alata. 4,5-Dicaffeoylquinic acid reduces islet cell apoptosis and improves pancreatic function in type 2 diabetic mice, and has obvious inhibitory activities against yeast α-glucosidase. 4,5-Dicaffeoylquinic acid inhibits prostate cancer cells through cell cycle arrest. 4,5-Dicaffeoylquinic acid also has anti-apoptotic, anti-injury and anti-hepatitis B virus effects[1][2][3]. 4,5-Dicaffeoylquinic acid (Isochlorogenic acid C) is an antioxidant, can be isolated from Gynura divaricata and Laggera alata. 4,5-Dicaffeoylquinic acid reduces islet cell apoptosis and improves pancreatic function in type 2 diabetic mice, and has obvious inhibitory activities against yeast α-glucosidase. 4,5-Dicaffeoylquinic acid inhibits prostate cancer cells through cell cycle arrest. 4,5-Dicaffeoylquinic acid also has anti-apoptotic, anti-injury and anti-hepatitis B virus effects[1][2][3].

   

isochlorogenic acid B

3,4-Dicaffeoylquinic acids

C25H24O12 (516.1267703999999)


3,4-Dicaffeoylquinic acid (3,4-Di-O-caffeoylquinic acid), naturally isolated from Laggera alata, has antioxidative, DNA protective, neuroprotective and hepatoprotective properties. 3,4-Dicaffeoylquinic acid exerts apoptosis-mediated cytotoxicity and α-glucosidase inhibitory effects. 3,4-Dicaffeoylquinic acid possesses a unique mechanism of anti-influenza viral activity, that is, enhancing viral clearance by increasing TRAIL[1][2][3]. 3,4-Dicaffeoylquinic acid (3,4-Di-O-caffeoylquinic acid), naturally isolated from Laggera alata, has antioxidative, DNA protective, neuroprotective and hepatoprotective properties. 3,4-Dicaffeoylquinic acid exerts apoptosis-mediated cytotoxicity and α-glucosidase inhibitory effects. 3,4-Dicaffeoylquinic acid possesses a unique mechanism of anti-influenza viral activity, that is, enhancing viral clearance by increasing TRAIL[1][2][3].

   

1-Methylhistidine

1-Methyl-L-histidine

C7H11N3O2 (169.0851226)


A methylhistidine in which the methyl group is located at N-1. 1-Methyl-L-histidine is an objective indicator of meat ingestion and exogenous 3-methylhistidine (3MH) intake. 1-Methyl-L-histidine is an objective indicator of meat ingestion and exogenous 3-methylhistidine (3MH) intake.

   

α-Ketoisovaleric acid

3-Methyl-2-oxobutanoic acid

C5H8O3 (116.0473418)


A 2-oxo monocarboxylic acid that is the 2-oxo derivative of isovaleric acid. 3-Methyl-2-oxobutanoic acid is a precursor of pantothenic acid in Escherichia coli.

   

gentisic acid

2,5-Dihydroxybenzoic acid

C7H6O4 (154.0266076)


2,5-Dihydroxybenzoic acid is a derivative of benzoic and a powerful inhibitor of fibroblast growth factors. 2,5-Dihydroxybenzoic acid is a derivative of benzoic and a powerful inhibitor of fibroblast growth factors.

   

2-hydroxyadipic acid

2-hydroxyadipic acid

C6H10O5 (162.052821)


2-Hydroxyadipic acid is an organic acid, formed by the reduction of 2-ketoadipic acid.

   

2-Octenoic acid

Trans-2-octenoic acid

C8H14O2 (142.09937440000002)


(E)-Oct-2-enoic acid is an endogenous metabolite. (E)-Oct-2-enoic acid is an endogenous metabolite.

   

2-Hydroxy-3-methylbutyric acid

2-Hydroxy-3-methylbutyric acid

C5H10O3 (118.06299100000001)


A valine derivative that is valine in which the amino group has been replaced by a hydroxy group. 2-Hydroxy-3-methylbutanoic acid is a close structure analogue of GHB, which is a naturally occurring neurotransmitter and a psychoactive agent.

   

Homoveratric acid

3,4-Dimethoxyphenylacetic acid

C10H12O4 (196.0735552)


3,4-Dimethoxyphenylacetic acid is a building block in the chemical synthesis. 3,4-Dimethoxyphenylacetic acid is a building block in the chemical synthesis.

   

2-Furoylglycine

N-(2-Furoyl)glycine

C7H7NO4 (169.0375062)


A glycine derivative that is the carboxamide obtained by the formal condensation of the amino group of glycine with 2-furoic acid. 2-Furoylglycine, a urinary metabolite in human, is a putative biomarker for coffee consumption[1].

   

3-Hydroxyphenylacetic acid

3-Hydroxyphenylacetic acid

C8H8O3 (152.0473418)


3-Hydroxyphenylacetic acid is an endogenous metabolite.

   

(S)-3-Hydroxybutyric acid

(S)-3-Hydroxybutanoic acid

C4H8O3 (104.0473418)


The S-enantiomer of 3-hydroxybutyric acid; a normal human metabolite, that has been found elevated in geriatric patients remitting from depression. (S)-3-Hydroxybutanoic acid is a normal human metabolite, that has been found elevated in geriatric patients remitting from depression. In humans, 3-Hydroxybutyric acid is synthesized in the liver from acetyl-CoA, and can be used as an energy source by the brain when blood glucose is low.

   

3-FUROIC ACID

3-FUROIC ACID

C5H4O3 (112.0160434)


A furoic acid carrying the carboxy group at position 3. 3-Furanoic acid is an endogenous metabolite. 3-Furanoic acid is an endogenous metabolite.

   

Senecioic acid

3,3-Dimethylacrylic acid

C5H8O2 (100.05242679999999)


3-Methylbut-2-enoic acid is an endogenous metabolite. 3-Methylbut-2-enoic acid is an endogenous metabolite.

   

3-METHYLADIPIC ACID

(r)-3-methylhexanedioic acid

C7H12O4 (160.0735552)


An alpha,omega-dicarboxylic acid that is adipic acid substituted with a methyl group at position C-3. CONFIDENCE standard compound; INTERNAL_ID 158 3-Methyladipic acid is the final metabolite in the ω-oxidation pathway.

   

Monoethyl malonic acid

3-Ethoxy-3-oxopropanoic acid

C5H8O4 (132.0422568)


3-Ethoxy-3-oxopropanoic acid is an endogenous metabolite. 3-Ethoxy-3-oxopropanoic acid promotes plant growth[1].

   

2-FUROIC ACID

2-FUROIC ACID

C5H4O3 (112.0160434)


A furoic acid having the carboxylic acid group located at position 2. 2-Furoic acid (Furan-2-carboxylic acid) is an organic compound produced through furfural oxidation[1]. 2-Furoic acid exhibits hypolipidemic effet, lowers both serum cholesterol and serum triglyceride levels in rats[2]. 2-Furoic acid (Furan-2-carboxylic acid) is an organic compound produced through furfural oxidation[1]. 2-Furoic acid exhibits hypolipidemic effet, lowers both serum cholesterol and serum triglyceride levels in rats[2]. 2-Furoic acid (Furan-2-carboxylic acid) is an organic compound produced through furfural oxidation[1]. 2-Furoic acid exhibits hypolipidemic effet, lowers both serum cholesterol and serum triglyceride levels in rats[2].

   

Succinylacetone

4,6-Dioxoheptanoic acid

C7H10O4 (158.057906)


D004791 - Enzyme Inhibitors 4,6-Dioxoheptanoic acid is a potent inhibitor of heme biosynthesis.

   

Hydroxyoctanoic acid

2-Hydroxyoctanoic acid

C8H16O3 (160.10993860000002)


2-Hydroxyoctanoic acid is a medium chain acyl-CoA synthetase inhibitor with a Ki of 500 μM[1]. 2-Hydroxyoctanoic acid is a medium chain acyl-CoA synthetase inhibitor with a Ki of 500 μM[1].

   

L-Leucic acid

L-2-Hydroxy-4-methylpentanoic acid

C6H12O3 (132.0786402)


(S)-Leucic acid is an amino acid metabolite.

   

L-3-Phenyllactic acid

L-(-)-3-Phenyllactic acid

C9H10O3 (166.062991)


(S)-2-Hydroxy-3-phenylpropanoic acid is a product of phenylalanine catabolism. An elevated level of phenyllactic acid is found in body fluids of patients with or phenylketonuria.

   

3-Hydroxyisovaleric acid

3-Hydroxy-3-methylbutanoic acid

C5H10O3 (118.06299100000001)


A 3-hydroxy monocarboxylic acid that is isovaleric acid substituted at position 3 by a hydroxy group. Used as indicator of biotin deficiency. 3-Hydroxyisovaleric acid is a normal endogenous metabolite excreted in the urine. The urinary excretion of 3-hydroxyisovaleric acid is early and sensitive indicator of biotin deficiency[1][2]. 3-Hydroxyisovaleric acid is a normal endogenous metabolite excreted in the urine. The urinary excretion of 3-hydroxyisovaleric acid is early and sensitive indicator of biotin deficiency[1][2].

   

dCMP

2-Deoxycytidine-5-monophosphoric acid

C9H14N3O7P (307.0569344)


2'-Deoxycytidine-5'-monophosphoric acid is an endogenous metabolite. 2'-Deoxycytidine-5'-monophosphoric acid is an endogenous metabolite.

   

Diaminopimelic acid

meso-α,ε-Diaminopimelic acid

C7H14N2O4 (190.0953524)


2,6-Diaminoheptanedioic acid is an endogenous metabolite.

   

3-Hydroxyanthranilic acid

3-Hydroxyanthranilic acid

C7H7NO3 (153.0425912)


An aminobenzoic acid that is benzoic acid substituted at C-2 by an amine group and at C-3 by a hydroxy group. It is an intermediate in the metabolism of the amino acid tryptophan. D000975 - Antioxidants > D016166 - Free Radical Scavengers D020011 - Protective Agents > D000975 - Antioxidants MS2 deconvoluted using MS2Dec from all ion fragmentation data, MetaboLights identifier MTBLS1040; WJXSWCUQABXPFS-UHFFFAOYSA-N_STSL_0003_3-hydroxyanthranillic acid_8000fmol_180416_S2_LC02_MS02_37; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. MS2 deconvoluted using CorrDec from all ion fragmentation data, MetaboLights identifier MTBLS1040; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. 3-Hydroxyanthranilic acid is a tryptophan metabolite in the kynurenine pathway.

   

3-Pyridylacetic acid

3-pyridineacetic acid

C7H7NO2 (137.0476762)


A monocarboxylic acid that is acetic acid substituted by a (pyridin-3-yl) group. It is a metabolite of nicotine and other tobacco alkaloids. MS2 deconvoluted using MS2Dec from all ion fragmentation data, MetaboLights identifier MTBLS1040; WGNUNYPERJMVRM-UHFFFAOYSA-N_STSL_0014_3-Pyridylacetic_acid_0250fmol_190413_S2_LC02MS02_067; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. MS2 deconvoluted using CorrDec from all ion fragmentation data, MetaboLights identifier MTBLS1040; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. 3-Pyridineacetic acid is a higher homologue of nicotinic acid, a breakdown product of nicotine (and other tobacco alkaloids)[1][2].

   

2-Hydroxycaproic acid

Hexanoic acid,2-hydroxy-

C6H12O3 (132.0786402)


2-Hydroxyhexanoic acid is an endogenous metabolite.

   

m-Coumaric acid

3-Hydroxycinnamic acid

C9H8O3 (164.0473418)


(E)-m-Coumaric acid (3-Hydroxycinnamic acid) is an aromatic acid that highly abundant in food. (E)-m-Coumaric acid (3-Hydroxycinnamic acid) is an antioxidant. (E)-m-Coumaric acid (3-Hydroxycinnamic acid) is an aromatic acid that highly abundant in food. (E)-m-Coumaric acid (3-Hydroxycinnamic acid) is an antioxidant.

   

3-Chlorotyrosine

3-Chloro-L-tyrosine

C9H10ClNO3 (215.034918)


3-Chloro-L-tyrosine is a specific marker of myeloperoxidase-catalyzed oxidation, and is markedly elevated in low density lipoprotein isolated from human atherosclerotic intima.

   

3-Phenylbutyric acid

(±)-β-Methylhydrocinnamic acid

C10H12O2 (164.0837252)


A monocarboxylic acid that is butanoic acid substituted by a phenyl group at position 3. 3-Phenylbutyric acid is metabolized by initial oxidation of the benzene ring and by initial oxidation of the side chain. 3-Phenylbutyric acid can be used to isolate Rhodococcus rhodochrous PB1 from compost soil[1][2].

   

2-Hydroxy-2-methylbutyric acid

2-Hydroxy-2-methylbutyric acid

C5H10O3 (118.06299100000001)


A branched-chain fatty acid that is 2-methylbutyric acid substituted at C-2 by a hydroxy group. 2-Hydroxy-2-methylbutanoic acid, an unusual metabolite, is associated with 2-hydroxyglutaric aciduria and maple syrup urine disease.

   

12-Hydroxydodecanoic acid

12-Hydroxydodecanoic acid

C12H24O3 (216.1725354)


12-Hydroxydodecanoic acid is an endogenous metabolite.

   

4-Methoxyphenylacetic acid

4-Methoxyphenylacetic acid

C9H10O3 (166.062991)


2-(4-Methoxyphenyl)acetic acid is a plasma metabolite, with high sensitivity and specificity value as a biomarker for discriminating between NSCLC and healthy controls. 2-(4-Methoxyphenyl)acetic acid is a plasma metabolite, with high sensitivity and specificity value as a biomarker for discriminating between NSCLC and healthy controls.

   

2,2-Dimethylsuccinic acid

2,2-Dimethylsuccinic acid

C6H10O4 (146.057906)


2,2-Dimethylsuccinic acid belongs to the class of organic compounds known as methyl-branched fatty acids.

   

2,5-Furandicarboxylic acid

2,5-Furandicarboxylic acid

C6H4O5 (156.00587339999998)


2,5-Furandicarboxylic acid, detected in human urine, is an important renewable biotechnological building block because it serves as an environmentally friendly substitute for terephthalic acid in the production of polyesters[1].

   

D-Aspartic acid

D-Aspartic acid

C4H7NO4 (133.0375062)


The D-enantiomer of aspartic acid. (-)-Aspartic acid is an endogenous NMDA receptor agonist. (-)-Aspartic acid is an endogenous NMDA receptor agonist. (-)-Aspartic acid is an endogenous NMDA receptor agonist. (-)-Aspartic acid is an endogenous NMDA receptor agonist.

   

3-Methoxybenzenepropanoic acid

3-(3-Methoxyphenyl)propanoic acid

C10H12O3 (180.0786402)


3-(3-Methoxyphenyl)propionic acid is an organic acid, naturally occurring human metabolite and excreted in human urine.

   

2,4-dichlorophenoxyacetic acid

2,4-dichlorophenoxyacetic acid

C8H6Cl2O3 (219.9693986)


D010575 - Pesticides > D006540 - Herbicides D016573 - Agrochemicals 2,4-D (2,4-Dichlorophenoxyacetic acid) is a selective systemic herbicide for the control of broad-leaved weeds. 2,4-D acts as a plant hormone, causing uncontrolled growth in the meristematic tissues. 2,4-D inhibits DNA and protein synthesis and thereby prevents normal plant growth and development[1].

   

4-Acetamidobutyric acid

4-Acetamidobutanoic acid

C6H11NO3 (145.0738896)


4-Acetamidobutanoic acid (N-acetyl GABA), the main metabolite of GABA, exhibits antioxidant and antibacterial activities[1]. 4-Acetamidobutanoic acid (N-acetyl GABA), the main metabolite of GABA, exhibits antioxidant and antibacterial activities[1]. 4-Acetamidobutanoic acid (N-acetyl GABA), the main metabolite of GABA, exhibits antioxidant and antibacterial activities[1].

   

1,2-CYCLOHEXANEDIONE

1,2-CYCLOHEXANEDIONE

C6H8O2 (112.05242679999999)


1,2-Cyclohexanedione is an endogenous metabolite.

   

2,6-Diaminopimelic acid

DL-2,6-Diaminopimelic acid

C7H14N2O4 (190.0953524)


The amino dicarboxylic acid that is heptanedioic acid with amino substituents at C-2 and C-6. MS2 deconvoluted using MS2Dec from all ion fragmentation data, MetaboLights identifier MTBLS1040; GMKMEZVLHJARHF-UHFFFAOYSA-N_STSL_0247_26-diaminopimelic_acid_4000fmol_190413_S2_LC02MS02_053; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. MS2 deconvoluted using CorrDec from all ion fragmentation data, MetaboLights identifier MTBLS1040; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. 2,6-Diaminoheptanedioic acid is an endogenous metabolite.

   

10-Hydroxydecanoic acid

10-Hydroxydecanoic acid

C10H20O3 (188.14123700000002)


10-Hydroxydecanoic acid (NSC 15139) is a saturated fatty acid of 10-hydroxy-trans-2-decenoic acid from royal jelly, with anti-inflammatory activity[1].

   

2,5-Dihydroxybenzaldehyde

2,5-Dihydroxybenzaldehyde

C7H6O3 (138.03169259999999)


A dihydroxybenzaldehyde carrying hydroxy groups at positions 2 and 5. 2,5-Dihydroxybenzaldehyde (Gentisaldehyde) is a naturally occurring antimicrobial that inhibits the growth of Mycobacterium avium subsp. paratuberculosis. 2,5-Dihydroxybenzaldehyde is active against S. aureus strains with a MIC50 of 500 mg/L[1][2].

   

3-HYDROXYGLUTARIC ACID

3-HYDROXYGLUTARIC ACID

C5H8O5 (148.0371718)


A 3 hydroxy carboxylic acid that is glutaric acid which is substituted by a hydroxy group at position 3. It is a diagnostic marker for glutaric aciduria type I. 3-Hydroxyglutaric acid is a glutaric acid derivative.

   

3-Methylglutaric acid

3-METHYLGLUTARIC ACID

C6H10O4 (146.057906)


3-Methylglutaric acid, a leucine metabolite, is a conspicuous C6 dicarboxylic organic acid classically associated with two distinct leucine pathway enzyme deficiencies, 3-hydroxy-3-methylglutaryl CoA lyase (HMGCL) and 3-methylglutaconyl CoA hydratase (AUH)[1][2]. 3-Methylglutaric acid, a leucine metabolite, is a conspicuous C6 dicarboxylic organic acid classically associated with two distinct leucine pathway enzyme deficiencies, 3-hydroxy-3-methylglutaryl CoA lyase (HMGCL) and 3-methylglutaconyl CoA hydratase (AUH)[1][2].

   

2,4-Dihydroxypyrimidine-5-carboxylic acid

"2,4-DIHYDROXYPYRIMIDINE-5-CARBOXYLIC ACID"

C5H4N2O4 (156.0171064)


2,4-Dihydroxypyrimidine-5-carboxylic Acid is an endogenous metabolite.

   

(2-Aminoethyl)phosphonic acid

(2-Aminoethyl)phosphonic acid

C2H8NO3P (125.0241788)


A phosphonic acid in which the hydrogen attached to the phosphorus of phosphonic acid is substituted by a 2-aminoethyl group. (2-Aminoethyl)phosphonic acid is an endogenous metabolite.

   

2-DEOXYCYTIDINE 5-MONOPHOSPHATE

2-Deoxycytidine-5-monophosphoric acid

C9H14N3O7P (307.0569344)


2'-Deoxycytidine-5'-monophosphoric acid is an endogenous metabolite. 2'-Deoxycytidine-5'-monophosphoric acid is an endogenous metabolite.

   

1-Naphthaleneacetic acid

1-Naphthaleneacetic acid

C12H10O2 (186.06807600000002)


1-Naphthaleneacetic acid (1-Naphthylacetic acid), a auxin, can promote plant growth. 1-Naphthaleneacetic acid is also an inhibitor of PLA2, with an IC50 of 13.16 μM[1][2]. 1-Naphthaleneacetic acid (1-Naphthylacetic acid), a auxin, can promote plant growth. 1-Naphthaleneacetic acid is also an inhibitor of PLA2, with an IC50 of 13.16 μM[1][2].

   

3-Hydroxycinnamic acid

3-Hydroxycinnamic acid

C9H8O3 (164.0473418)


Annotation level-1 (E)-m-Coumaric acid (3-Hydroxycinnamic acid) is an aromatic acid that highly abundant in food. (E)-m-Coumaric acid (3-Hydroxycinnamic acid) is an antioxidant. (E)-m-Coumaric acid (3-Hydroxycinnamic acid) is an aromatic acid that highly abundant in food. (E)-m-Coumaric acid (3-Hydroxycinnamic acid) is an antioxidant. m-Coumaric acid is a polyphenol metabolite from caffeic acid, formed by the gut microflora and the amount in human biofluids is diet-dependant. m-Coumaric acid is a polyphenol metabolite from caffeic acid, formed by the gut microflora and the amount in human biofluids is diet-dependant.

   

2-Piperidone

δ-Valerolactam

C5H9NO (99.0684104)


MS2 deconvoluted using MS2Dec from all ion fragmentation data, MetaboLights identifier MTBLS1040; XUWHAWMETYGRKB-UHFFFAOYSA-N_STSL_0198_2-Piperidone_0031fmol_180831_S2_L02M02_73; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. MS2 deconvoluted using CorrDec from all ion fragmentation data, MetaboLights identifier MTBLS1040; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. 2-Piperidone is an endogenous metabolite.

   

2-Acetonaphthone

2-Acetylnaphthalene

C12H10O (170.073161)


CONFIDENCE standard compound; INTERNAL_ID 1243; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4862; ORIGINAL_PRECURSOR_SCAN_NO 4859 CONFIDENCE standard compound; INTERNAL_ID 1243; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4890; ORIGINAL_PRECURSOR_SCAN_NO 4887 CONFIDENCE standard compound; INTERNAL_ID 1243; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4839; ORIGINAL_PRECURSOR_SCAN_NO 4835 CONFIDENCE standard compound; INTERNAL_ID 1243; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4872; ORIGINAL_PRECURSOR_SCAN_NO 4871 CONFIDENCE standard compound; INTERNAL_ID 1243; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4893; ORIGINAL_PRECURSOR_SCAN_NO 4890 CONFIDENCE standard compound; INTERNAL_ID 1243; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4882; ORIGINAL_PRECURSOR_SCAN_NO 4877 CONFIDENCE standard compound; INTERNAL_ID 2446 2-Acetonaphthone is an endogenous metabolite.

   

UNII:S7S079H2C2

2-Phenylbutyric acid

C10H12O2 (164.0837252)


A monocarboxylic acid that is butyric acid substituted by a phenyl group at position 2. C471 - Enzyme Inhibitor > C1946 - Histone Deacetylase Inhibitor C274 - Antineoplastic Agent > C163758 - Targeted Therapy Agent 2-Phenylbutanoic acid is an endogenous metabolite.

   

Trans-2-octenoic acid

Oct-trans-2-enoic acid

C8H14O2 (142.09937440000002)


2-octenoic acid, also known as (E)-2-octenoate or trans-alpha-octenoic acid, is a member of the class of compounds known as medium-chain fatty acids. Medium-chain fatty acids are fatty acids with an aliphatic tail that contains between 4 and 12 carbon atoms. Thus, 2-octenoic acid is considered to be a fatty acid lipid molecule. 2-octenoic acid is practically insoluble (in water) and a very weakly acidic compound (based on its pKa). Within the cell, 2-octenoic acid is primarily located in the membrane (predicted from logP). It can also be found in the extracellular space. 2-octenoic acid exists in all eukaryotes, ranging from yeast to humans. In humans, 2-octenoic acid is involved in the fatty acid biosynthesis. (E)-Oct-2-enoic acid is an endogenous metabolite. (E)-Oct-2-enoic acid is an endogenous metabolite.

   

(R)-Carvone

L(-)-Carvone

C10H14O (150.1044594)


(-)-Carvone is an insect neurotoxin and a irreversible acetylcholinesterase (AChE) inhibitor. (-)-Carvone can be used as a bird repellent, inhibits larval growth, decreases pupatation rate, and increases mortality of larvae[1][2]. (-)-Carvone is an insect neurotoxin and a irreversible acetylcholinesterase (AChE) inhibitor. (-)-Carvone can be used as a bird repellent, inhibits larval growth, decreases pupatation rate, and increases mortality of larvae[1][2]. (-)-Carvone is an insect neurotoxin and a irreversible acetylcholinesterase (AChE) inhibitor. (-)-Carvone can be used as a bird repellent, inhibits larval growth, decreases pupatation rate, and increases mortality of larvae[1][2]. (-)-Carvone is an insect neurotoxin and a irreversible acetylcholinesterase (AChE) inhibitor. (-)-Carvone can be used as a bird repellent, inhibits larval growth, decreases pupatation rate, and increases mortality of larvae[1][2].

   

Dimethylcaffeic acid

3,4-Dimethoxycinnamic acid, predominantly trans

C11H12O4 (208.0735552)


(E)-3,4-Dimethoxycinnamic acid is the less active isomer of 3,4-Dimethoxycinnamic acid. 3,4-Dimethoxycinnamic acid exerts anti-apoptotic effects on L-02 cells via the ROS-mediated signaling pathway[1]. Anti-apoptotic effects[1]. (E)-3,4-Dimethoxycinnamic acid is the less active isomer of 3,4-Dimethoxycinnamic acid. 3,4-Dimethoxycinnamic acid exerts anti-apoptotic effects on L-02 cells via the ROS-mediated signaling pathway[1]. Anti-apoptotic effects[1]. 3,4-Dimethoxycinnamic acid (O-Methylferulic acid) is a monomer extracted and purified from Securidaca inappendiculata Hassk. 3,4-Dimethoxycinnamic acid exerts anti-apoptotic effects on L-02 cells via the ROS-mediated signaling pathway[1]. Anti-apoptotic effects[1]. 3,4-Dimethoxycinnamic acid (O-Methylferulic acid) is a monomer extracted and purified from Securidaca inappendiculata Hassk. 3,4-Dimethoxycinnamic acid exerts anti-apoptotic effects on L-02 cells via the ROS-mediated signaling pathway[1]. Anti-apoptotic effects[1].

   

3-nitro-L-tyrosine

3-nitro-L-tyrosine

C9H10N2O5 (226.058969)


A 3-nitrotyrosine comprising L-tyrosine having a nitro group at the 3-position on the phenyl ring. 3-Nitro-L-tyrosine is a biomarker of nitrogen free radical species modified proteins in systemic autoimmunogenic conditions.

   

3,4-AHBA

3-Amino-4-hydroxybenzoic acid

C7H7NO3 (153.0425912)


3-Amino-4-hydroxybenzoic acid is an endogenous metabolite.

   

Deoxycytidine monophosphate

2-Deoxycytidine-5-monophosphoric acid

C9H14N3O7P (307.0569344)


2'-Deoxycytidine-5'-monophosphoric acid is an endogenous metabolite. 2'-Deoxycytidine-5'-monophosphoric acid is an endogenous metabolite.

   

2,6-Dimethoxybenzoic acid

2,6-dimethoxy-benzoic acid

C9H10O4 (182.057906)


CONFIDENCE standard compound; INTERNAL_ID 599; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 6415; ORIGINAL_PRECURSOR_SCAN_NO 6412 CONFIDENCE standard compound; INTERNAL_ID 599; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 6444; ORIGINAL_PRECURSOR_SCAN_NO 6442 CONFIDENCE standard compound; INTERNAL_ID 599; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 6448; ORIGINAL_PRECURSOR_SCAN_NO 6446 CONFIDENCE standard compound; INTERNAL_ID 599; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 6463; ORIGINAL_PRECURSOR_SCAN_NO 6460 CONFIDENCE standard compound; INTERNAL_ID 599; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 6470; ORIGINAL_PRECURSOR_SCAN_NO 6466 CONFIDENCE standard compound; INTERNAL_ID 599; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 6472; ORIGINAL_PRECURSOR_SCAN_NO 6470 2,6-Dimethoxybenzoic acid is a member of organic compounds known as o-methoxybenzoic acids and derivatives. 2,6-Dimethoxybenzoic acid is a member of organic compounds known as o-methoxybenzoic acids and derivatives.

   

3-Amino-4-hydroxybenzoic acid

3-Amino-4-hydroxybenzoic acid

C7H7NO3 (153.0425912)


3-Amino-4-hydroxybenzoic acid is an endogenous metabolite.

   

Dihydroxymandelic acid

3,4-Dihydroxymandelic acid

C8H8O5 (184.0371718)


3,4-Dihydroxymandelic acid is a metabolite of norepinephrine.

   

3-Amino-4-hydroxybenzoate

3-Amino-4-hydroxybenzoic acid

C7H7NO3 (153.0425912)


3-Amino-4-hydroxybenzoic acid is an endogenous metabolite.

   

3-Methoxytyrosine

(DL)-3-O-Methyldopa

C10H13NO4 (211.0844538)


3-O-Methyldopa (3-Methoxy-L-tyrosine) is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of l-DOPA and dopamine[1]. 3-O-Methyldopa (3-Methoxy-L-tyrosine) is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of l-DOPA and dopamine[1].

   

ANILINE-2-SULFONATE

2-Aminobenzenesulfonic acid

C6H7NO3S (173.0146632)


2-Aminobenzenesulfonic acid is an endogenous metabolite.

   

URACIL 5-CARBOXYLATE

2,4-Dihydroxypyrimidine-5-carboxylic acid

C5H4N2O4 (156.0171064)


2,4-Dihydroxypyrimidine-5-carboxylic Acid is an endogenous metabolite.

   

N-Acetylasparagine

Na-Acetyl-L-asparagine

C6H10N2O4 (174.064054)


(S)-2-acetamido-4-amino-4-oxobutanoic acid is an endogenous metabolite.

   

Oxoproline

D-Pyroglutamic acid

C5H7NO3 (129.0425912)


(R)-5-Oxopyrrolidine-2-carboxylic acid is an endogenous metabolite.

   

malate

D-(+)-Malic acid

C4H6O5 (134.0215226)


(S)-Malic acid ((S)-2-Hydroxysuccinic acid) is a dicarboxylic acid in naturally occurring form, contributes to the pleasantly sour taste of fruits and is used as a food additive. (S)-Malic acid ((S)-2-Hydroxysuccinic acid) is a dicarboxylic acid in naturally occurring form, contributes to the pleasantly sour taste of fruits and is used as a food additive. D-(+)-Malic acid (D-Malic acid), an active enantiomer of Malic acid, is a competitive inhibitor of L(--)malic acid transport[1]. D-(+)-Malic acid (D-Malic acid), an active enantiomer of Malic acid, is a competitive inhibitor of L(--)malic acid transport[1].

   

4,6-Dioxoheptanoic acid

4,6-Dioxoheptanoic acid

C7H10O4 (158.057906)


A dioxo monocarboxylic acid that is heptanoic acid in which oxo groups replace the hydrogens at positions 4 and 6. It is an abnormal metabolite of the tyrosine metabolic pathway and a marker for type 1 tyrosinaemia. D004791 - Enzyme Inhibitors 4,6-Dioxoheptanoic acid is a potent inhibitor of heme biosynthesis.

   

2-Hydroxyoctanoic acid

(R)-2-Hydroxycaprylic acid

C8H16O3 (160.10993860000002)


A hydroxy fatty acid that is caprylic (octanoic) acid substituted by a hydroxy group at position 2. 2-Hydroxyoctanoic acid is a medium chain acyl-CoA synthetase inhibitor with a Ki of 500 μM[1]. 2-Hydroxyoctanoic acid is a medium chain acyl-CoA synthetase inhibitor with a Ki of 500 μM[1].

   

2-Methylhippuric acid

2-(2-Methylbenzamido)acetic acid

C10H11NO3 (193.0738896)


2-(2-Methylbenzamido)acetic acid is a metabolite detected in urine.

   

3,5-DIHYDROXYBENZOIC ACID

3,5-DIHYDROXYBENZOIC ACID

C7H6O4 (154.0266076)


A dihydroxybenzoic acid in which the hydroxy groups are located at positions 3 and 5. 3,5-Dihydroxybenzoic acid a potential biomarker for the consumption of many food products, including beer, nuts, peanut, and pulses. 3,5-Dihydroxybenzoic acid a potential biomarker for the consumption of many food products, including beer, nuts, peanut, and pulses.

   

2,6-DIHYDROXYBENZOIC ACID

2,6-DIHYDROXYBENZOIC ACID

C7H6O4 (154.0266076)


A dihydroxybenzoic acid having the two hydroxy groups at the C-2 and C-6 positions. 2,6-Dihydroxybenzoic acid is a secondary metabolite of salicylic acid which has been hydrolyzed by liver enzymes during phase I metabolism. 2,6-Dihydroxybenzoic acid is a secondary metabolite of salicylic acid which has been hydrolyzed by liver enzymes during phase I metabolism.

   

2-Anisic acid

Salicylic acid methyl ether

C8H8O3 (152.0473418)


D000893 - Anti-Inflammatory Agents > D000894 - Anti-Inflammatory Agents, Non-Steroidal > D012459 - Salicylates 2-Methoxybenzoic acid (NSC 3778) is used as an internal standard of salicylic acid and its putative biosynthetic precursors in cucumber leaves. Another known use is in the synthesis of Benextramine. 2-Methoxybenzoic acid (NSC 3778) is used as an internal standard of salicylic acid and its putative biosynthetic precursors in cucumber leaves. Another known use is in the synthesis of Benextramine.

   

Aminohippuric acid

Aminohippuric acid (USP)

C9H10N2O3 (194.069139)


An N-acylglycine that is the 4-amino derivative of hippuric acid; used as a diagnostic agent in the measurement of renal plasma flow. V - Various > V04 - Diagnostic agents > V04C - Other diagnostic agents > V04CH - Tests for renal function and ureteral injuries D019995 - Laboratory Chemicals > D007202 - Indicators and Reagents ATC code: V04CH30 4-Aminohippuric acid is a diagnostic agent used in renal testing and is used in the determination of renal plasma flow.

   

2-carboxy-1-naphthol

1-Hydroxy-2-naphthoic acid

C11H8O3 (188.0473418)


A naphthoic acid with the carboxy group at position 2 and carrying a hydroxy substituent at the 1-position. It is a xenobiotic metabolite produced by the biodegradation of phenanthrene by microorganisms. 1-Hydroxy-2-naphthoic acid is an endogenous metabolite.

   

2-Aminobenzenesulfonic acid

2-Aminobenzenesulfonic acid

C6H7NO3S (173.0146632)


2-Aminobenzenesulfonic acid is an endogenous metabolite.

   

HYDROXYISOBUTYRIC ACID

2-HYDROXYISOBUTYRIC ACID

C4H8O3 (104.0473418)


2-Hydroxyisobutyric acid is an endogenous metabolite.

   

Omega-hydroxydodecanoate

12-Hydroxydodecanoic acid

C12H24O3 (216.1725354)


12-Hydroxydodecanoic acid is an endogenous metabolite.

   

3-methyl-2-oxovalerate

(3S)-3-Methyl-2-oxopentanoic acid

C6H10O3 (130.062991)


3-Methyl-2-oxovaleric acid is a neurotoxin, an acidogen, and a metabotoxin, and also an abnormal metabolite that arises from the incomplete breakdown of branched-chain amino acids.

   

L-Phenyl lactate

Α-hydroxy-β-phenyl-propionic acid

C9H10O3 (166.062991)


(S)-2-Hydroxy-3-phenylpropanoic acid is a product of phenylalanine catabolism. An elevated level of phenyllactic acid is found in body fluids of patients with or phenylketonuria.

   

2-hydroxy Palmitic Acid

2-hydroxy-hexadecanoic acid

C16H32O3 (272.2351322)


A 2-hydroxy fatty acid comprising a C16 straight chain carrying a hydroxy substituent at position 2. 2-Hydroxypalmitic acid is an intermediate in phytosphingosine metabolism[1].

   

2-Phenylpropionic acid

DL-2-Phenylpropionic acid

C9H10O2 (150.06807600000002)


2-Phenylpropionic acid is an intermediate in alpha-Methylstyrene metabolism. 2-Phenylpropionic acid is an intermediate in alpha-Methylstyrene metabolism.

   

Pyrotartarate

(S)-2-HYDROXY-2-METHYLSUCCINIC ACID

C5H8O4 (132.0422568)


2-Methylsuccinic acid is a normal metabolite in human fluids and the main biochemical measurable features in ethylmalonic encephalopathy.

   

b-Hydroxyisovalerate

β-hydroxy-beta-methylbutyric acid

C5H10O3 (118.06299100000001)


3-Hydroxyisovaleric acid is a normal endogenous metabolite excreted in the urine. The urinary excretion of 3-hydroxyisovaleric acid is early and sensitive indicator of biotin deficiency[1][2]. 3-Hydroxyisovaleric acid is a normal endogenous metabolite excreted in the urine. The urinary excretion of 3-hydroxyisovaleric acid is early and sensitive indicator of biotin deficiency[1][2].

   

Methylglutarate

β-methyl-Glutaric acid

C6H10O4 (146.057906)


3-Methylglutaric acid, a leucine metabolite, is a conspicuous C6 dicarboxylic organic acid classically associated with two distinct leucine pathway enzyme deficiencies, 3-hydroxy-3-methylglutaryl CoA lyase (HMGCL) and 3-methylglutaconyl CoA hydratase (AUH)[1][2].

   

MG(18:2)

2,3-Dihydroxypropyl 9,12-octadecadienoate

C21H38O4 (354.2769948)


1-Linoleoyl Glycerol is a fatty acid glycerol. 1-Linoleoyl Glycerol is a fatty acid glycerol. 1-Linoleoyl Glycerol is a fatty acid glycerol.

   

eudesmic acid

3,4,5-Trimethoxybenzoic acid

C10H12O5 (212.06847019999998)


3,4,5-Trimethoxybenzoic acid (Eudesmic acid;Trimethylgallic Acid) is a benzoic acid derivative. A building block in medicine and organic synthesis. 3,4,5-Trimethoxybenzoic acid (Eudesmic acid;Trimethylgallic Acid) is a benzoic acid derivative. A building block in medicine and organic synthesis.

   

SENECate

3-methylbut-2-enoic acid;�3-methylbut-2-enoate

C5H8O2 (100.05242679999999)


3-Methylbut-2-enoic acid is an endogenous metabolite. 3-Methylbut-2-enoic acid is an endogenous metabolite.

   

3-Furoate

furan-3-carboxylic acid

C5H4O3 (112.0160434)


3-Furanoic acid is an endogenous metabolite. 3-Furanoic acid is an endogenous metabolite.

   

Dehydromucate

(1,5-Dimethylhexyl)hydrazine

C6H4O5 (156.00587339999998)


2,5-Furandicarboxylic acid, detected in human urine, is an important renewable biotechnological building block because it serves as an environmentally friendly substitute for terephthalic acid in the production of polyesters[1].

   

3-Hydroxyhippurate

N-m-Hydroxylbenzoylglycine

C9H9NO4 (195.0531554)


3-Hydroxyhippuric acid is an acyl glycine. Acyl glycines are normally minor metabolites of fatty acids.

   

m-Methoxyhydrocinnamate

3-(3-Methoxyphenyl)propionic acid

C10H12O3 (180.0786402)


3-(3-Methoxyphenyl)propionic acid is an organic acid, naturally occurring human metabolite and excreted in human urine.

   

Monochlorotyrosine

2-amino-3-(3-chloro-4-hydroxyphenyl)propanoic acid

C9H10ClNO3 (215.034918)


D004791 - Enzyme Inhibitors 3-Chloro-L-tyrosine is a specific marker of myeloperoxidase-catalyzed oxidation, and is markedly elevated in low density lipoprotein isolated from human atherosclerotic intima.

   

Nitrotyrosine

3-nitro-L-tyrosine

C9H10N2O5 (226.058969)


3-Nitro-L-tyrosine is a biomarker of nitrogen free radical species modified proteins in systemic autoimmunogenic conditions.

   

2,2-Dimethylsuccinate

α,α-Dimethyl-succinic acid

C6H10O4 (146.057906)


2,2-Dimethylsuccinic acid belongs to the class of organic compounds known as methyl-branched fatty acids.

   

Homoanisate

2-(4-methoxyphenyl)acetic acid

C9H10O3 (166.062991)


2-(4-Methoxyphenyl)acetic acid is a plasma metabolite, with high sensitivity and specificity value as a biomarker for discriminating between NSCLC and healthy controls. 2-(4-Methoxyphenyl)acetic acid is a plasma metabolite, with high sensitivity and specificity value as a biomarker for discriminating between NSCLC and healthy controls.

   

Paraxylic Acid

1-Carboxy-3,4-dimethylbenzene

C9H10O2 (150.06807600000002)


3,4-Dimethylbenzoic acid acts as a product of dimethylbenzoate metabolism by Rhodococcus rhodochrous N75[1].

   

3,3-Dimethylglutarate

3,3-Dimethylpentanedioic acid

C7H12O4 (160.0735552)


3,3-Dimethylglutaric acid, a member of methyl-branched fatty acids, is a endogenous metabolite occasionally found in human urine[1].

   

3-Hydroxymandelate

2-Hydroxy-2-(3-hydroxyphenyl)acetic acid

C8H8O4 (168.0422568)


D000890 - Anti-Infective Agents > D000892 - Anti-Infective Agents, Urinary > D008333 - Mandelic Acids 3-Hydroxymandelic Acid, a metabolite of Phenylephrine, Phenylephrine is a α-receptor agonist.

   

benzoate

3,5-Dihydroxybenzoic acid (acd/name 4.0)

C7H6O4 (154.0266076)


2,6-Dihydroxybenzoic acid is a secondary metabolite of salicylic acid which has been hydrolyzed by liver enzymes during phase I metabolism. 2,6-Dihydroxybenzoic acid is a secondary metabolite of salicylic acid which has been hydrolyzed by liver enzymes during phase I metabolism. 3,5-Dihydroxybenzoic acid a potential biomarker for the consumption of many food products, including beer, nuts, peanut, and pulses. 3,5-Dihydroxybenzoic acid a potential biomarker for the consumption of many food products, including beer, nuts, peanut, and pulses.

   

Phloroglucinic acid

2,4,6-Trihydroxybenzene carboxylic acid

C7H6O5 (170.0215226)


2,4,6-Trihydroxybenzoic acid, the flavonoid metabolite, is a CDK inhibitor. 2,4,6-Trihydroxybenzoic acid can be used for the research of cancer[1].

   

«

Acetophenone, 2',6'-dihydroxy- (8CI)

C8H8O3 (152.0473418)


2,6-Dihydroxyacetophenone is an endogenous metabolite. 2,6-Dihydroxyacetophenone is an endogenous metabolite.

   

2,4-DHBA

Resorcinol-4-carboxylic acid

C7H6O4 (154.0266076)


2,4-Dihydroxybenzoic acid is a degradation product of cyaniding glycoside from tart cheeries in cell culture. 2,4-Dihydroxybenzoic acid is a degradation product of cyaniding glycoside from tart cheeries in cell culture.

   

&alpha

alpha-Thiophenecarboxaldehyde

C5H4OS (111.9982854)


COVID info from PDB, Protein Data Bank Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS 2-Thiophenecarboxaldehyde is an endogenous metabolite.

   

&beta

3-(3,4,5-Trimethoxyphenyl)propionic acid

C12H16O5 (240.0997686)


3-(3,4,5-Trimethoxyphenyl)propanoic acid is found in herbs and spices. 3-(3,4,5-Trimethoxyphenyl)propanoic acid is a constituent of Piper longum (long pepper) and Piper retrofractum (Javanese long pepper). 3-(3,4,5-Trimethoxyphenyl)propanoic acid is found in herbs and spices. 3-(3,4,5-Trimethoxyphenyl)propanoic acid is a constituent of Piper longum (long pepper) and Piper retrofractum (Javanese long pepper).

   

4,5-DCQA

(1R,3R,4S,5R)-3,4-bis({[(2E)-3-(3,4-dihydroxyphenyl)prop-2-enoyl]oxy})-1,5-dihydroxycyclohexane-1-carboxylic acid

C25H24O12 (516.1267703999999)


3,4-Dicaffeoylquinic acid (3,4-Di-O-caffeoylquinic acid), naturally isolated from Laggera alata, has antioxidative, DNA protective, neuroprotective and hepatoprotective properties. 3,4-Dicaffeoylquinic acid exerts apoptosis-mediated cytotoxicity and α-glucosidase inhibitory effects. 3,4-Dicaffeoylquinic acid possesses a unique mechanism of anti-influenza viral activity, that is, enhancing viral clearance by increasing TRAIL[1][2][3]. 3,4-Dicaffeoylquinic acid (3,4-Di-O-caffeoylquinic acid), naturally isolated from Laggera alata, has antioxidative, DNA protective, neuroprotective and hepatoprotective properties. 3,4-Dicaffeoylquinic acid exerts apoptosis-mediated cytotoxicity and α-glucosidase inhibitory effects. 3,4-Dicaffeoylquinic acid possesses a unique mechanism of anti-influenza viral activity, that is, enhancing viral clearance by increasing TRAIL[1][2][3]. 4,5-Dicaffeoylquinic acid (Isochlorogenic acid C) is an antioxidant, can be isolated from Gynura divaricata and Laggera alata. 4,5-Dicaffeoylquinic acid reduces islet cell apoptosis and improves pancreatic function in type 2 diabetic mice, and has obvious inhibitory activities against yeast α-glucosidase. 4,5-Dicaffeoylquinic acid inhibits prostate cancer cells through cell cycle arrest. 4,5-Dicaffeoylquinic acid also has anti-apoptotic, anti-injury and anti-hepatitis B virus effects[1][2][3]. 4,5-Dicaffeoylquinic acid (Isochlorogenic acid C) is an antioxidant, can be isolated from Gynura divaricata and Laggera alata. 4,5-Dicaffeoylquinic acid reduces islet cell apoptosis and improves pancreatic function in type 2 diabetic mice, and has obvious inhibitory activities against yeast α-glucosidase. 4,5-Dicaffeoylquinic acid inhibits prostate cancer cells through cell cycle arrest. 4,5-Dicaffeoylquinic acid also has anti-apoptotic, anti-injury and anti-hepatitis B virus effects[1][2][3].

   

UNII:29HK385L3G

2-Methylpent-4-en-1-oic acid

C6H10O2 (114.068076)


2-Methyl-4-pentenoic Acid is an organic acid. 2-Methyl-4-pentenoic Acid is an organic acid.

   

FEMA 3373

Dihydro-2-methyl-3(2H)-furanone

C5H8O2 (100.05242679999999)


2-Methyltetrahydrofuran-3-one is one of the volatile constituents of roasted coffee[1]. 2-Methyltetrahydrofuran-3-one is one of the volatile constituents of roasted coffee[1].

   

2-Oxobutanol

Ethyl hydroxymethyl ketone

C4H8O2 (88.0524268)


1-Hydroxy-2-butanone is a natural compound isolated from Bomboo Juice with antitubercular activity[1]. 1-Hydroxy-2-butanone is a natural compound isolated from Bomboo Juice with antitubercular activity[1].

   

FEMA 3946

alpha-Methylcyclohexanone

C7H12O (112.0888102)


2-Methylcyclohexanone is an endogenous metabolite.

   

FEMA 3435

1-Methyl-1-cyclopenten-3-one

C6H8O (96.0575118)


3-Methyl-2-cyclopenten-1-one is an endogenous metabolite. 3-Methyl-2-cyclopenten-1-one is an endogenous metabolite.

   

Acetylpropionyl

Benzil-related compound, 43

C5H8O2 (100.05242679999999)


2,3-Pentanedione is a common constituent of synthetic flavorings and is used to impart a butter, strawberry, caramel, fruit, rum, or cheese flavor in beverages, ice cream, candy, baked goods, gelatins, and puddings. 2,3-Pentanedione also occurs naturally as a fermentation product in beer, wine, and yogurt and is releasedduring roasting of coffee beans[1]. 2,3-Pentanedione is a common constituent of synthetic flavorings and is used to impart a butter, strawberry, caramel, fruit, rum, or cheese flavor in beverages, ice cream, candy, baked goods, gelatins, and puddings. 2,3-Pentanedione also occurs naturally as a fermentation product in beer, wine, and yogurt and is releasedduring roasting of coffee beans[1].

   

FEMA 2387

Acetophenone, 2',4'-dimethyl- (8CI)

C10H12O (148.08881019999998)


2',4'-Dimethylacetophenone is an endogenous metabolite. 2',4'-Dimethylacetophenone is an endogenous metabolite.

   

&beta

1-(naphthalen-2-yl)ethan-1-one

C12H10O (170.073161)


2-Acetonaphthone is an endogenous metabolite.

   

Glycolophenone

Acetophenone, 2'-hydroxy- (8CI)

C8H8O2 (136.0524268)


2'-Hydroxyacetophenone is found in alcoholic beverages. 2'-Hydroxyacetophenone is present in tomato, cassia, fried beef, rum, whiskey, cocoa, coffee and black tea. 2'-Hydroxyacetophenone is a flavouring ingredient. Building block in chemical synthesis. 2'-Hydroxyacetophenone is found in alcoholic beverages. 2'-Hydroxyacetophenone is present in tomato, cassia, fried beef, rum, whiskey, cocoa, coffee and black tea. 2'-Hydroxyacetophenone is a flavouring ingredient. Building block in chemical synthesis.

   

3-Anisic acid

BENZOIC ACID,3-methoxy

C8H8O3 (152.0473418)


3-Methoxybenzoic acid can be used in the synthesis of 3-methoxybenzoates of europium (III) and gadolinium (III).

   

O-Acetylaniline

1-(2-Aminophenyl)ethanone, 9ci

C8H9NO (135.0684104)


2'-Aminoacetophenone is an aromatic compound containing a ketone substituted by one alkyl group, and a phenyl group. 2'-Aminoacetophenone can be used as a breath biomarker for the detection of Ps. Aeruginosa infections in the cystic fibrosis lung[1].

   

o-Anisaldehyde

2-Methoxybenzenecarboxaldehyde

C8H8O2 (136.0524268)


2-Methoxybenzaldehyde (o-Anisaldehyde), isolated from cinnamon essential oil (CEO), exists antibacterial and antifungal activity[1]. 2-Methoxybenzaldehyde (o-Anisaldehyde), isolated from cinnamon essential oil (CEO), exists antibacterial and antifungal activity[1].

   

2-Tridecanone

Methyl n-undecyl ketone

C13H26O (198.1983546)


2-Tridecanone, a nonalkaloid insecticide, is isolated from the wild tomato Lycopersicon hirsutum f. glabratum. 2-Tridecanone is a volatile organic compound[1][2]. 2-Tridecanone, a nonalkaloid insecticide, is isolated from the wild tomato Lycopersicon hirsutum f. glabratum. 2-Tridecanone is a volatile organic compound[1][2].

   

3-O-Methyl-L-DOPA

3-O-Methyl-L-DOPA

C10H13NO4 (211.0844538)


3-O-Methyldopa (3-Methoxy-L-tyrosine) is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of l-DOPA and dopamine[1]. 3-O-Methyldopa (3-Methoxy-L-tyrosine) is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of l-DOPA and dopamine[1].

   

FA 8:1

(2S,4R,5S)-2,4-Dimethyl-5-hexanolide

C8H14O2 (142.09937440000002)


D009676 - Noxae > D013723 - Teratogens (E)-Oct-2-enoic acid is an endogenous metabolite. (E)-Oct-2-enoic acid is an endogenous metabolite.

   

FA 5:1;O2

(4S)-4-hydroxy-2-ketovaleric acid;(4S)-4-hydroxy-2-oxovaleric acid;(S)-4-hydroxy-2-ketopentanoic acid

C5H8O4 (132.0422568)


D018377 - Neurotransmitter Agents > D018847 - Opioid Peptides D018377 - Neurotransmitter Agents > D004399 - Dynorphins 2-Methylsuccinic acid is a normal metabolite in human fluids and the main biochemical measurable features in ethylmalonic encephalopathy. Ethylmalonic acid is non-carcinogenic potentially toxic and associated with anorexia nervosa and malonyl-CoA decarboxylase deficiency.

   

FA 4:0;O

(R)-2-hydroxybutanoic acid;D-2-hydroxybutanoic acid;D-2-hydroxybutyric acid

C4H8O3 (104.0473418)


(S)-3-Hydroxybutanoic acid is a normal human metabolite, that has been found elevated in geriatric patients remitting from depression. In humans, 3-Hydroxybutyric acid is synthesized in the liver from acetyl-CoA, and can be used as an energy source by the brain when blood glucose is low.

   

FA 5:0;O

3-Hydroxy-2-methyl-[S-(R,R)]-butanoic acid

C5H10O3 (118.06299100000001)


2-Hydroxy-3-methylbutanoic acid is a close structure analogue of GHB, which is a naturally occurring neurotransmitter and a psychoactive agent.

   

FA 6:1;O3

2-hydroxy-2,3-dimethylbutanedioic acid

C6H10O5 (162.052821)


2-Hydroxyadipic acid is an organic acid, formed by the reduction of 2-ketoadipic acid.

   

3,5-Diiodo-L-tyrosine dihydrate

3,5-Diiodo-L-tyrosine dihydrate

C9H13I2NO5 (468.8883228)


(S)-2-Amino-3-(4-hydroxy-3,5-diiodophenyl)propanoic acid dihydrate is an endogenous metabolite.

   

Alanine, 3-amino-, hydrochloride (1:1)

2,3-Diaminopropanoic acid monohydrochloride

C3H9ClN2O2 (140.03525240000002)


Alanine, 3-amino-, hydrochloride (1:1). CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=54897-59-5 (retrieved 2024-07-09) (CAS RN: 54897-59-5). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). 2,3-Diaminopropanoic acid hydrochloride is an endogenous metabolite.

   

2-Oxoacetic acid

2-Oxoacetic acid

C2H4O4 (92.0109584)


2,2-Dihydroxyacetic acid is an endogenous metabolite.

   

2,6-Dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid hydrate

2,6-Dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid hydrate

C5H6N2O5 (174.0276706)


2,6-Dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid hydrate is an endogenous metabolite. Orotic acid hydrate is an endogenous metabolite.

   

(3-Carboxypropyl)trimethylammonium chloride

(3-Carboxypropyl)trimethylammonium chloride

C7H16ClNO2 (181.08695060000002)


(3-Carboxypropyl)trimethylammonium chloride is angiopathic substance produced as an intermediary metabolite by gut microbiota that feed on carnitine in dietary red meat.

   

(R)-3-Hydroxybutanoic acid sodium

(R)-3-Hydroxybutanoic acid sodium

C4H7NaO3 (126.0292872)


(R)-3-Hydroxybutanoic acid sodium ((R)-3-Hydroxybutyric acid) is a metabolite converted from acetoacetic acid catalyzed by 3-hydroxybutyrate dehydrogenase. (R)-3-Hydroxybutanoic acid sodium can function as a nutrition source, and as a precursor for vitamins, antibiotics and pheromones[1][2].

   

3-Furaldehyde

3-Furaldehyde

C5H4O2 (96.0211284)


An aldehyde that is furan substituted by a formyl group at position 3. 3-Furaldehyde is a member of furans and an aldehyde, and can be used to synthesize the neoclerodane diterpene Salvinorin A[1][2]. 3-Furaldehyde is a member of furans and an aldehyde, and can be used to synthesize the neoclerodane diterpene Salvinorin A[1][2].

   

Carnitine chloride

(3-Carboxy-2-hydroxypropyl)trimethylammonium chloride

C7H16ClNO3 (197.08186560000001)


Carnitine chloride. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=461-05-2 (retrieved 2024-07-09) (CAS RN: 461-05-2). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). (±)-Carnitine chloride exists in two isomers, known as D and L. L-carnitine plays an essential role in the β-oxidation of fatty acids and also shows antioxidant, and anti-inflammatory activities. (±)-Carnitine chloride exists in two isomers, known as D and L. L-carnitine plays an essential role in the β-oxidation of fatty acids and also shows antioxidant, and anti-inflammatory activities.

   

1-Naphthylacetic acid

1-Naphthaleneacetic acid

C12H10O2 (186.06807600000002)


1-Naphthaleneacetic acid (1-Naphthylacetic acid), a auxin, can promote plant growth. 1-Naphthaleneacetic acid is also an inhibitor of PLA2, with an IC50 of 13.16 μM[1][2]. 1-Naphthaleneacetic acid (1-Naphthylacetic acid), a auxin, can promote plant growth. 1-Naphthaleneacetic acid is also an inhibitor of PLA2, with an IC50 of 13.16 μM[1][2].

   

AI3-14650

InChI=1\C8H8O2\c1-6(9)7-3-2-4-8(10)5-7\h2-5,10H,1H

C8H8O2 (136.0524268)


3-Hydroxyacetophenone (m-Hydroxyacetophenone) is the hydroxy-substituted alkyl phenyl ketone that can be used in synthesis of enantiopure (-)-rivastigmine[1][2]. 3-Hydroxyacetophenone (m-Hydroxyacetophenone) is the hydroxy-substituted alkyl phenyl ketone that can be used in synthesis of enantiopure (-)-rivastigmine[1][2].

   

CHEBI:36492

Cyclohexanone, 5-methyl-2-(1-methylethyl)-, (2R-cis)-

C10H18O (154.1357578)


(+)-Isomenthone is an isomenthone isolated from Ziziphora clinopodioides Lam.. (+)-Isomenthone is an isomer of L-Menthone[1][2]. (+)-Isomenthone is an isomenthone isolated from Ziziphora clinopodioides Lam.. (+)-Isomenthone is an isomer of L-Menthone[1][2]. (+)-Isomenthone is an isomenthone isolated from Ziziphora clinopodioides Lam.. (+)-Isomenthone is an isomer of L-Menthone[1][2]. (+)-Isomenthone is an isomenthone isolated from Ziziphora clinopodioides Lam.. (+)-Isomenthone is an isomer of L-Menthone[1][2].

   

577-16-2

InChI=1\C9H10O\c1-7-5-3-4-6-9(7)8(2)10\h3-6H,1-2H

C9H10O (134.073161)


2-Methylacetophenone is an endogenous metabolite. 2-Methylacetophenone is an endogenous metabolite.

   

89-74-7

Ethanone, 1-(2,4-dimethylphenyl)-

C10H12O (148.08881019999998)


2',4'-Dimethylacetophenone is an endogenous metabolite. 2',4'-Dimethylacetophenone is an endogenous metabolite.

   

97-67-6

(S)-(−)-2-Hydroxysuccinic acid

C4H6O5 (134.0215226)


(S)-Malic acid ((S)-2-Hydroxysuccinic acid) is a dicarboxylic acid in naturally occurring form, contributes to the pleasantly sour taste of fruits and is used as a food additive. (S)-Malic acid ((S)-2-Hydroxysuccinic acid) is a dicarboxylic acid in naturally occurring form, contributes to the pleasantly sour taste of fruits and is used as a food additive.

   

2277-28-3

(9Z,12Z)-octadeca-9,12-dienoic acid [(2S)-2,3-dihydroxypropyl] ester

C21H38O4 (354.2769948)


1-Linoleoyl Glycerol is a fatty acid glycerol. 1-Linoleoyl Glycerol is a fatty acid glycerol. 1-Linoleoyl Glycerol is a fatty acid glycerol.

   

AI3-01375

InChI=1\C8H8O2\c1-10-8-5-3-2-4-7(8)6-9\h2-6H,1H

C8H8O2 (136.0524268)


2-Methoxybenzaldehyde (o-Anisaldehyde), isolated from cinnamon essential oil (CEO), exists antibacterial and antifungal activity[1]. 2-Methoxybenzaldehyde (o-Anisaldehyde), isolated from cinnamon essential oil (CEO), exists antibacterial and antifungal activity[1].

   

GENOP

InChI=1\C7H6O4\c8-4-1-2-6(9)5(3-4)7(10)11\h1-3,8-9H,(H,10,11

C7H6O4 (154.0266076)


D000893 - Anti-Inflammatory Agents > D000894 - Anti-Inflammatory Agents, Non-Steroidal > D012459 - Salicylates 2,5-Dihydroxybenzoic acid is a derivative of benzoic and a powerful inhibitor of fibroblast growth factors. 2,5-Dihydroxybenzoic acid is a derivative of benzoic and a powerful inhibitor of fibroblast growth factors.

   

AI3-23868

InChI=1\C9H8O2\c1-7(10)9(11)8-5-3-2-4-6-8\h2-6H,1H

C9H8O2 (148.0524268)


1-Phenylpropane-1,2-dione, isolated from young Ephedra sinica Stapf (Ephedraceae), is biosynthetic precursors of the ephedrine alkaloids[1][2]. 1-Phenylpropane-1,2-dione, isolated from young Ephedra sinica Stapf (Ephedraceae), is biosynthetic precursors of the ephedrine alkaloids[1][2].

   

AI3-38428

InChI=1\C10H12O5\c1-13-7-5-9(15-3)8(14-2)4-6(7)10(11)12\h4-5H,1-3H3,(H,11,12

C10H12O5 (212.06847019999998)


2,4,5-Trimethoxybenzoic acid is a compound identified in purple perilla extracts. 2,4,5-Trimethoxybenzoic acid inhibits M1 macrophage phenotype-mediated inflammation in diabetes[1]. 2,4,5-Trimethoxybenzoic acid is a compound identified in purple perilla extracts. 2,4,5-Trimethoxybenzoic acid inhibits M1 macrophage phenotype-mediated inflammation in diabetes[1].

   

13-Mtd

Tetradecanoic acid, 13-methyl-

C15H30O2 (242.224568)


13-Methyltetradecanoic acid (13-MTD), a saturated branched-chain fatty acid with potent anticancer effects. 13-Methyltetradecanoic acid induces apoptosis in many types of human cancer cells[1][2]. 13-Methyltetradecanoic acid (13-MTD), a saturated branched-chain fatty acid with potent anticancer effects. 13-Methyltetradecanoic acid induces apoptosis in many types of human cancer cells[1][2].

   

AI3-04238

2-Tridecanone (natural)

C13H26O (198.1983546)


2-Tridecanone, a nonalkaloid insecticide, is isolated from the wild tomato Lycopersicon hirsutum f. glabratum. 2-Tridecanone is a volatile organic compound[1][2]. 2-Tridecanone, a nonalkaloid insecticide, is isolated from the wild tomato Lycopersicon hirsutum f. glabratum. 2-Tridecanone is a volatile organic compound[1][2].

   

498-60-2

InChI=1\C5H4O2\c6-3-5-1-2-7-4-5\h1-4

C5H4O2 (96.0211284)


3-Furaldehyde is a member of furans and an aldehyde, and can be used to synthesize the neoclerodane diterpene Salvinorin A[1][2]. 3-Furaldehyde is a member of furans and an aldehyde, and can be used to synthesize the neoclerodane diterpene Salvinorin A[1][2].

   

AIDS-018090

InChI=1\C9H10O4\c1-12-6-4-3-5-7(13-2)8(6)9(10)11\h3-5H,1-2H3,(H,10,11

C9H10O4 (182.057906)


2,6-Dimethoxybenzoic acid is a member of organic compounds known as o-methoxybenzoic acids and derivatives. 2,6-Dimethoxybenzoic acid is a member of organic compounds known as o-methoxybenzoic acids and derivatives.

   

89-86-1

InChI=1\C7H6O4\c8-4-1-2-5(7(10)11)6(9)3-4\h1-3,8-9H,(H,10,11

C7H6O4 (154.0266076)


2,4-Dihydroxybenzoic acid is a degradation product of cyaniding glycoside from tart cheeries in cell culture. 2,4-Dihydroxybenzoic acid is a degradation product of cyaniding glycoside from tart cheeries in cell culture.

   

Soleal

4-01-00-04119 (Beilstein Handbook Reference)

C3H6O3 (90.0316926)


1,3-Dihydroxyacetone (DHA), the main active ingredient in sunless tanning skin-care preparations and an important precursor for the synthesis of various fine chemicals, is produced on an industrial scale by microbial fermentation of glycerol over Gluconobacter oxydans[1]. 1,3-Dihydroxyacetone (DHA), the main active ingredient in sunless tanning skin-care preparations and an important precursor for the synthesis of various fine chemicals, is produced on an industrial scale by microbial fermentation of glycerol over Gluconobacter oxydans[1].

   

5077-67-8

Ethyl hydroxymethyl ketone

C4H8O2 (88.0524268)


1-Hydroxy-2-butanone is a natural compound isolated from Bomboo Juice with antitubercular activity[1]. 1-Hydroxy-2-butanone is a natural compound isolated from Bomboo Juice with antitubercular activity[1].

   

AI3-32389

InChI=1\C9H8O3\c10-8-3-1-2-7(6-8)4-5-9(11)12\h1-6,10H,(H,11,12)\b5-4

C9H8O3 (164.0473418)


(E)-m-Coumaric acid (3-Hydroxycinnamic acid) is an aromatic acid that highly abundant in food. (E)-m-Coumaric acid (3-Hydroxycinnamic acid) is an antioxidant. (E)-m-Coumaric acid (3-Hydroxycinnamic acid) is an aromatic acid that highly abundant in food. (E)-m-Coumaric acid (3-Hydroxycinnamic acid) is an antioxidant. m-Coumaric acid is a polyphenol metabolite from caffeic acid, formed by the gut microflora and the amount in human biofluids is diet-dependant. m-Coumaric acid is a polyphenol metabolite from caffeic acid, formed by the gut microflora and the amount in human biofluids is diet-dependant.

   

O5209_ALDRICH

trans-alpha-octenoic acid

C8H14O2 (142.09937440000002)


(E)-Oct-2-enoic acid is an endogenous metabolite. (E)-Oct-2-enoic acid is an endogenous metabolite.

   

Cruex

InChI=1\C11H20O2\c1-2-3-4-5-6-7-8-9-10-11(12)13\h2H,1,3-10H2,(H,12,13

C11H20O2 (184.14632200000003)


D - Dermatologicals > D01 - Antifungals for dermatological use > D01A - Antifungals for topical use C254 - Anti-Infective Agent > C514 - Antifungal Agent 10-Undecenoic acid is used as a starting agent in the synthesis of Pheromone (11Z)-hexadecenal. 10-Undecenoic acid is used as a starting agent in the synthesis of Pheromone (11Z)-hexadecenal.

   

875-59-2

InChI=1\C9H10O2\c1-6-5-8(11)3-4-9(6)7(2)10\h3-5,11H,1-2H

C9H10O2 (150.06807600000002)


4′-Hydroxy-2′-methylacetophenone, an aroma compound of red wines, is isolated from cv. Bobal grape variety. 4′-Hydroxy-2′-methylacetophenone has ciliate toxicity. 4′-Hydroxy-2′-methylacetophenone inhibits the growth of T. pyriformis, with an IC50 of 0.65 mM[1][2]. 4′-Hydroxy-2′-methylacetophenone, an aroma compound of red wines, is isolated from cv. Bobal grape variety. 4′-Hydroxy-2′-methylacetophenone has ciliate toxicity. 4′-Hydroxy-2′-methylacetophenone inhibits the growth of T. pyriformis, with an IC50 of 0.65 mM[1][2].

   

furoic acid

InChI=1\C5H4O3\c6-5(7)4-2-1-3-8-4\h1-3H,(H,6,7

C5H4O3 (112.0160434)


2-Furoic acid (Furan-2-carboxylic acid) is an organic compound produced through furfural oxidation[1]. 2-Furoic acid exhibits hypolipidemic effet, lowers both serum cholesterol and serum triglyceride levels in rats[2]. 2-Furoic acid (Furan-2-carboxylic acid) is an organic compound produced through furfural oxidation[1]. 2-Furoic acid exhibits hypolipidemic effet, lowers both serum cholesterol and serum triglyceride levels in rats[2]. 2-Furoic acid (Furan-2-carboxylic acid) is an organic compound produced through furfural oxidation[1]. 2-Furoic acid exhibits hypolipidemic effet, lowers both serum cholesterol and serum triglyceride levels in rats[2].

   

99-10-5

InChI=1\C7H6O4\c8-5-1-4(7(10)11)2-6(9)3-5\h1-3,8-9H,(H,10,11

C7H6O4 (154.0266076)


3,5-Dihydroxybenzoic acid a potential biomarker for the consumption of many food products, including beer, nuts, peanut, and pulses. 3,5-Dihydroxybenzoic acid a potential biomarker for the consumption of many food products, including beer, nuts, peanut, and pulses.

   

AI3-12134

InChI=1\C8H8O2\c1-6(9)7-4-2-3-5-8(7)10\h2-5,10H,1H

C8H8O2 (136.0524268)


2'-Hydroxyacetophenone is found in alcoholic beverages. 2'-Hydroxyacetophenone is present in tomato, cassia, fried beef, rum, whiskey, cocoa, coffee and black tea. 2'-Hydroxyacetophenone is a flavouring ingredient. Building block in chemical synthesis. 2'-Hydroxyacetophenone is found in alcoholic beverages. 2'-Hydroxyacetophenone is present in tomato, cassia, fried beef, rum, whiskey, cocoa, coffee and black tea. 2'-Hydroxyacetophenone is a flavouring ingredient. Building block in chemical synthesis.

   

614-75-5

InChI=1\C8H8O3\c9-7-4-2-1-3-6(7)5-8(10)11\h1-4,9H,5H2,(H,10,11

C8H8O3 (152.0473418)


COVID info from PDB, Protein Data Bank Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS 2-Hydroxyphenylacetic acid is a potential biomarker for the food products, and found to be associated with phenylketonuria (PKU). 2-Hydroxyphenylacetic acid is a potential biomarker for the food products, and found to be associated with phenylketonuria (PKU).

   

699-83-2

Ethanone, 1-(2,6-dihydroxyphenyl)- (9ci)

C8H8O3 (152.0473418)


2,6-Dihydroxyacetophenone is an endogenous metabolite. 2,6-Dihydroxyacetophenone is an endogenous metabolite.

   

AIDS-021439

InChI=1\C11H12O4\c1-14-9-5-3-8(4-6-11(12)13)7-10(9)15-2\h3-7H,1-2H3,(H,12,13)\b6-4

C11H12O4 (208.0735552)


(E)-3,4-Dimethoxycinnamic acid is the less active isomer of 3,4-Dimethoxycinnamic acid. 3,4-Dimethoxycinnamic acid exerts anti-apoptotic effects on L-02 cells via the ROS-mediated signaling pathway[1]. Anti-apoptotic effects[1]. (E)-3,4-Dimethoxycinnamic acid is the less active isomer of 3,4-Dimethoxycinnamic acid. 3,4-Dimethoxycinnamic acid exerts anti-apoptotic effects on L-02 cells via the ROS-mediated signaling pathway[1]. Anti-apoptotic effects[1]. 3,4-Dimethoxycinnamic acid (O-Methylferulic acid) is a monomer extracted and purified from Securidaca inappendiculata Hassk. 3,4-Dimethoxycinnamic acid exerts anti-apoptotic effects on L-02 cells via the ROS-mediated signaling pathway[1]. Anti-apoptotic effects[1]. 3,4-Dimethoxycinnamic acid (O-Methylferulic acid) is a monomer extracted and purified from Securidaca inappendiculata Hassk. 3,4-Dimethoxycinnamic acid exerts anti-apoptotic effects on L-02 cells via the ROS-mediated signaling pathway[1]. Anti-apoptotic effects[1].

   

303-07-1

InChI=1\C7H6O4\c8-4-2-1-3-5(9)6(4)7(10)11\h1-3,8-9H,(H,10,11

C7H6O4 (154.0266076)


2,6-Dihydroxybenzoic acid is a secondary metabolite of salicylic acid which has been hydrolyzed by liver enzymes during phase I metabolism. 2,6-Dihydroxybenzoic acid is a secondary metabolite of salicylic acid which has been hydrolyzed by liver enzymes during phase I metabolism.

   

600-14-6

4-01-00-03660 (Beilstein Handbook Reference)

C5H8O2 (100.05242679999999)


2,3-Pentanedione is a common constituent of synthetic flavorings and is used to impart a butter, strawberry, caramel, fruit, rum, or cheese flavor in beverages, ice cream, candy, baked goods, gelatins, and puddings. 2,3-Pentanedione also occurs naturally as a fermentation product in beer, wine, and yogurt and is releasedduring roasting of coffee beans[1]. 2,3-Pentanedione is a common constituent of synthetic flavorings and is used to impart a butter, strawberry, caramel, fruit, rum, or cheese flavor in beverages, ice cream, candy, baked goods, gelatins, and puddings. 2,3-Pentanedione also occurs naturally as a fermentation product in beer, wine, and yogurt and is releasedduring roasting of coffee beans[1].

   

AI3-32395

InChI=1\C9H10O3\c10-8-3-1-2-7(6-8)4-5-9(11)12\h1-3,6,10H,4-5H2,(H,11,12

C9H10O3 (166.062991)


3-(3-Hydroxyphenyl)propionic acid is a flavonoid metabolite formed by human microflora. 3-(3-Hydroxyphenyl)propionic acid shows vasodilatory activity[1]. 3-(3-Hydroxyphenyl)propionic acid is a flavonoid metabolite formed by human microflora. 3-(3-Hydroxyphenyl)propionic acid shows vasodilatory activity[1].

   

88-09-5

InChI=1\C6H12O2\c1-3-5(4-2)6(7)8\h5H,3-4H2,1-2H3,(H,7,8

C6H12O2 (116.08372519999999)


2-Ethylbutyric acid acts as an internal standard (IS) in a standard addition calibration method for the VFA analysis of faeces[1].

   

765-69-5

2-methylcyclopentane-1,3-quinone

C6H8O2 (112.05242679999999)


2-Methylcyclopentane-1,3-dione is a key intermediate for the total synthesis of steroids[1]. 2-Methylcyclopentane-1,3-dione is a key intermediate for the total synthesis of steroids[1].

   

61828-53-3

4H-1-Benzopyran-4-one, 2-(2-phenylethyl)-

C17H14O2 (250.09937440000002)


2-(2-Phenylethyl)chromone (Flidersiachromone) is one of 2-(2-phenylethyl)chromones that can be found in Chinese eaglewood from Aquilaria sinensis[1]. 2-(2-Phenylethyl)chromone (Flidersiachromone) is one of 2-(2-phenylethyl)chromones that can be found in Chinese eaglewood from Aquilaria sinensis[1].

   

3-Formylphenol

3-Hydroxybenzaldehyde

C7H6O2 (122.0367776)


3-Hydroxybenzaldehyde. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=100-83-4 (retrieved 2024-08-06) (CAS RN: 100-83-4). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). 3-Hydroxybenzaldehyde?is a precursor compound for phenolic compounds, such as Protocatechualdehyde (HY-N0295). 3-Hydroxybenzaldehyde is a substrate of aldehyde dehydrogenase (ALDH) in rats and humans (ALDH2). 3-Hydroxybenzaldehyde has vasculoprotective effects?in vitro and in vivo[1]. 3-Hydroxybenzaldehyde?is a precursor compound for phenolic compounds, such as Protocatechualdehyde (HY-N0295). 3-Hydroxybenzaldehyde is a substrate of aldehyde dehydrogenase (ALDH) in rats and humans (ALDH2). 3-Hydroxybenzaldehyde has vasculoprotective effects?in vitro and in vivo[1]. 3-Hydroxybenzaldehyde?is a precursor compound for phenolic compounds, such as Protocatechualdehyde (HY-N0295). 3-Hydroxybenzaldehyde is a substrate of aldehyde dehydrogenase (ALDH) in rats and humans (ALDH2). 3-Hydroxybenzaldehyde has vasculoprotective effects?in vitro and in vivo[1].

   

86-81-7

InChI=1\C10H12O4\c1-12-8-4-7(6-11)5-9(13-2)10(8)14-3\h4-6H,1-3H

C10H12O4 (196.0735552)


3,4,5-Trimethoxybenzaldehyde is an intermediate for the synthesis of various pharmaceuticals, especially for trimethoprim used to research bacterial infections, including urinary tract pathogens infection. 3,4,5-Trimethoxybenzaldehyde is an intermediate for the synthesis of various pharmaceuticals, especially for trimethoprim used to research bacterial infections, including urinary tract pathogens infection.

   

2758-18-1

InChI=1\C6H8O\c1-5-2-3-6(7)4-5\h4H,2-3H2,1H

C6H8O (96.0575118)


3-Methyl-2-cyclopenten-1-one is an endogenous metabolite. 3-Methyl-2-cyclopenten-1-one is an endogenous metabolite.

   

m-Hba

InChI=1\C7H6O3\c8-6-3-1-2-5(4-6)7(9)10\h1-4,8H,(H,9,10

C7H6O3 (138.03169259999999)


3-Hydroxybenzoic acid is an endogenous metabolite. 3-Hydroxybenzoic acid is an endogenous metabolite.

   

464139_ALDRICH

InChI=1\C8H8O4\c1-12-6-4-2-3-5(9)7(6)8(10)11\h2-4,9H,1H3,(H,10,11

C8H8O4 (168.0422568)


2-Hydroxy-6-methoxybenzoic acid can be used for the determination of acetylsalicylic acid and its major metabolite, salicylic acid, in animal plasma. 2-Hydroxy-6-methoxybenzoic acid exhibits significant analgesic effects[1][2]. 2-Hydroxy-6-methoxybenzoic acid can be used for the determination of acetylsalicylic acid and its major metabolite, salicylic acid, in animal plasma. 2-Hydroxy-6-methoxybenzoic acid exhibits significant analgesic effects[1][2].

   

AI3-20226

InChI=1\C8H8O3\c1-11-7-5-3-2-4-6(7)8(9)10\h2-5H,1H3,(H,9,10

C8H8O3 (152.0473418)


D000893 - Anti-Inflammatory Agents > D000894 - Anti-Inflammatory Agents, Non-Steroidal > D012459 - Salicylates 2-Methoxybenzoic acid (NSC 3778) is used as an internal standard of salicylic acid and its putative biosynthetic precursors in cucumber leaves. Another known use is in the synthesis of Benextramine. 2-Methoxybenzoic acid (NSC 3778) is used as an internal standard of salicylic acid and its putative biosynthetic precursors in cucumber leaves. Another known use is in the synthesis of Benextramine.

   

610-02-6

InChI=1\C7H6O5\c8-4-2-1-3(7(11)12)5(9)6(4)10\h1-2,8-10H,(H,11,12

C7H6O5 (170.0215226)


2,3,4-Trihydroxybenzoic acid is an internal standard in separation of phenolic acids by HPLC. 2,3,4-Trihydroxybenzoic acid is an internal standard in separation of phenolic acids by HPLC.

   

b-Resorcylaldehyde

(1RS,2RS)-Guaiacylglycerol 2-glucoside

C7H6O3 (138.03169259999999)


Isolated from Pinus sylvestris ( Scotch pine) needles. A polyphenol metabolite detected in biological fluids [PhenolExplorer] 2,4-Dihydroxybenzaldehyde is an endogenous metabolite. 2,4-Dihydroxybenzaldehyde is an endogenous metabolite.

   

2-Thiophenecarboxaldehyde

Thiophen-2-carboxyaldehyde

C5H4OS (111.9982854)


2-thiophenecarboxaldehyde, also known as alpha-formylthiophene or 2-thienylaldehyde, is a member of the class of compounds known as aryl-aldehydes. Aryl-aldehydes are compounds containing an aldehyde group directly attached to an aromatic ring. 2-thiophenecarboxaldehyde is slightly soluble (in water) and an extremely weak basic (essentially neutral) compound (based on its pKa). 2-thiophenecarboxaldehyde has a sulfurous taste. 2-thiophenecarboxaldehyde exists in all eukaryotes, ranging from yeast to humans. 2-Thiophenecarboxaldehyde is an endogenous metabolite.

   

3,4-Dihydroxy-5-methoxybenzoic acid

3,4-Dihydroxy-5-methoxybenzoic acid

C8H8O5 (184.0371718)


Present in hydrolysed soy protein and oak aged wines and brandies. 3,4-Dihydroxy-5-methoxybenzoic acid is found in alcoholic beverages and pulses. 3-O-Methylgallic acid (3,4-Dihydroxy-5-methoxybenzoic acid) is an anthocyanin metabolite and has potent antioxidant capacity. 3-O-methylgallic acid inhibits Caco-2 cell proliferation with an IC50 value of 24.1 μM. 3-O-methylgallic acid also induces cell apoptosis and has anti-cancer effects[1][2]. 3-O-Methylgallic acid (3,4-Dihydroxy-5-methoxybenzoic acid) is an anthocyanin metabolite and has potent antioxidant capacity. 3-O-methylgallic acid inhibits Caco-2 cell proliferation with an IC50 value of 24.1 μM. 3-O-methylgallic acid also induces cell apoptosis and has anti-cancer effects[1][2].

   

L-1-Methylhistidine

1-Methyl-L-histidine

C7H11N3O2 (169.0851226)


Protein metabolite; formed mainly by methylation of histidine residues in muscle actin and myosin. Urinary excretion levels used as an index of muscle protein breakdown. 1-Methylhistidine is a biomarker for the consumption of meat, especially red meat. 1-Methyl-L-histidine is an objective indicator of meat ingestion and exogenous 3-methylhistidine (3MH) intake. 1-Methyl-L-histidine is an objective indicator of meat ingestion and exogenous 3-methylhistidine (3MH) intake.

   

3-Methyl-2-oxopentanoic acid

(3S)-3-Methyl-2-oxopentanoic acid

C6H10O3 (130.062991)


Flavouring ingredient. Aroma constituent of cocoa, Fontina cheese and cooked white asparagusand is) also present in beer, dough preferment and pumpkin sap. 3-Methyl-2-oxopentanoic acid is found in many foods, some of which are cocoa and cocoa products, alcoholic beverages, milk and milk products, and green vegetables. 3-Methyl-2-oxovaleric acid is a neurotoxin, an acidogen, and a metabotoxin, and also an abnormal metabolite that arises from the incomplete breakdown of branched-chain amino acids.

   

cis-Aconitate

(Z)-Aconitic Acid

C6H6O6 (174.01643760000002)


Cis-aconitic acid, also known as (Z)-1-propene-1,2,3-tricarboxylic acid or cis-aconitate, belongs to tricarboxylic acids and derivatives class of compounds. Those are carboxylic acids containing exactly three carboxyl groups. Cis-aconitic acid is slightly soluble (in water) and a moderately acidic compound (based on its pKa). Cis-aconitic acid is a very mild, musty, and nutty tasting compound and can be found in a number of food items such as red beetroot, barley, corn, and oat, which makes cis-aconitic acid a potential biomarker for the consumption of these food products. Cis-aconitic acid can be found primarily in most biofluids, including urine, saliva, sweat, and breast milk, as well as in human prostate tissue. Cis-aconitic acid exists in all living species, ranging from bacteria to humans. In humans, cis-aconitic acid is involved in several metabolic pathways, some of which include the oncogenic action of succinate, congenital lactic acidosis, the oncogenic action of fumarate, and the oncogenic action of 2-hydroxyglutarate. Cis-aconitic acid is also involved in several metabolic disorders, some of which include pyruvate dehydrogenase deficiency (E3), glutaminolysis and cancer, mitochondrial complex II deficiency, and the oncogenic action of d-2-hydroxyglutarate in hydroxygluaricaciduria. Moreover, cis-aconitic acid is found to be associated with schizophrenia and lung Cancer. (Z)-Aconitic acid (cis-Aconitic acid) is the cis-isomer of Aconitic acid. (Z)-Aconitic acid (cis-Aconitic acid) is an intermediate in the tricarboxylic acid cycle produced by the dehydration of citric acid. (Z)-Aconitic acid (cis-Aconitic acid) is the cis-isomer of Aconitic acid. (Z)-Aconitic acid (cis-Aconitic acid) is an intermediate in the tricarboxylic acid cycle produced by the dehydration of citric acid.

   

L,L-Diaminopimelate

DL-2,6-Diaminopimelic acid

C7H14N2O4 (190.0953524)


Diaminopimelic acid, also known as ll-2,6-diaminopimelate or ll-2,6-diaminoheptanedioic acid, is a member of the class of compounds known as L-alpha-amino acids. L-alpha-amino acids are alpha amino acids which have the L-configuration of the alpha-carbon atom. Thus, diaminopimelic acid is considered to be a fatty acid lipid molecule. Diaminopimelic acid is soluble (in water) and a moderately acidic compound (based on its pKa). Diaminopimelic acid can be found in a number of food items such as quinoa, allium (onion), star anise, and dock, which makes diaminopimelic acid a potential biomarker for the consumption of these food products. Diaminopimelic acid can be found primarily in blood, feces, and urine. Diaminopimelic acid exists in all living species, ranging from bacteria to humans. Diaminopimelic acid is a characteristic of certain cell walls of some bacteria. Diaminopimelic acid is often found in the peptide linkages of NAM-NAG chains that make up the cell wall of gram-negative bacteria. When provided, they exhibit normal growth. When in deficiency, they still grow but with the inability to make new cell wall proteoglycan . 2,6-Diaminoheptanedioic acid is an endogenous metabolite.

   

Adyvia

(2S,3R,4S)-2-Amino-4-hydroxy-3-methylpentanoic acid (H-L-Ile(4-OH)-OH)

C6H13NO3 (147.0895388)


(4S)-4-hydroxy-L-isoleucine is an L-isoleucine derivative that is L-isoleucine bearing a (4S)-hydroxy substituent. It has a role as a plant metabolite. It is an amino alcohol, a L-isoleucine derivative and a non-proteinogenic L-alpha-amino acid. It is a tautomer of a (4S)-4-hydroxy-L-isoleucine zwitterion. See also: Fenugreek seed (part of). (2S,3R,4S)-4-Hydroxyisoleucine is an orally active compound isolated from Trigonella foenum-graecum, with anti-diabetes and anti-diabetic nephropathy activity[1]. (2S,3R,4S)-4-Hydroxyisoleucine is an orally active compound isolated from Trigonella foenum-graecum, with anti-diabetes and anti-diabetic nephropathy activity[1]. 4-Hydroxyisoleucine (4-?Hydroxy-?L-?isoleucine) is an amino acid which can be extracted and purified from fenugreek seeds. 4-Hydroxyisoleucine (4-?Hydroxy-?L-?isoleucine) displays an insulinotropic activity of great interest[1]. 4-Hydroxyisoleucine (4-?Hydroxy-?L-?isoleucine) is an amino acid which can be extracted and purified from fenugreek seeds. 4-Hydroxyisoleucine (4-?Hydroxy-?L-?isoleucine) displays an insulinotropic activity of great interest[1].

   

3-(Methylthio)propionic acid

3-(Methylthio)propionic acid

C4H8O2S (120.0244988)


A thia fatty acid acid consisting of propionic acid with a methylthio substituent at the 3-position; an intermediate in mammalian methionine metabolism in vitro. The simplest known phytotoxin, it is a blight-inducing toxin produced by the cassava pathogen Xanthomonas campestris manihotis. 3-(Methylthio)propionic acid is an intermediate in the methionine metabolism.

   

1-Phenylpropane-1,2-dione

1-Phenylpropane-1,2-dione

C9H8O2 (148.0524268)


An alpha-diketone that consists of 1-phenylpropane bearing keto substituents at positions 1 and 2. It is found in coffee. 1-Phenylpropane-1,2-dione, isolated from young Ephedra sinica Stapf (Ephedraceae), is biosynthetic precursors of the ephedrine alkaloids[1][2]. 1-Phenylpropane-1,2-dione, isolated from young Ephedra sinica Stapf (Ephedraceae), is biosynthetic precursors of the ephedrine alkaloids[1][2].

   

(R)-3-Hydroxybutyric acid

(R)-3-Hydroxybutanoic acid

C4H8O3 (104.0473418)


The R-enantiomer of 3-hydroxybutyric acid. Involved in the synthesis and degradation of ketone bodies, it can be used as an energy source by the brain during hypoglycaemia, and for the synthesis of biodegradable plastics. It is a sex pheremone in the European spider Linyphia triangularis. (R)-3-Hydroxybutanoic acid is a metabolite, and converted from acetoacetic acid catalyzed by 3-hydroxybutyrate dehydrogenase. (R)-3-Hydroxybutanoic acid has applications as a nutrition source and as a precursor for vitamins, antibiotics and pheromones[1][2].

   

D-Proline

H-D-Pro-OH

C5H9NO2 (115.0633254)


The D-enantiomer of proline. (R)-pyrrolidine-2-carboxylic acid is an endogenous metabolite. (R)-pyrrolidine-2-carboxylic acid is an endogenous metabolite.

   

H-Aib-OH

3-Amino-2-methylpropanoic acid

C4H9NO2 (103.0633254)


A beta-amino-acid that is isobutyric acid in which one of the methyl hydrogens is substituted by an amino group. 3-Amino-2-methylpropanoic acid could induce browning of white fat and hepatic β-oxidation and is inversely correlated with cardiometabolic risk factors.

   

(S)-2-Hydroxybutyric acid

(S)-2-Hydroxybutyric acid

C4H8O3 (104.0473418)


An optically active form of 2-hydroxybutyric acid having (S)-configuration. (S)-2-Hydroxybutanoic acid is the S-enantiomer of?2-Hydroxybutanoic acid. 2-Hydroxybutanoic acid, a coproduct of protein metabolism, is an insulin resistance (IR) biomarker[1].

   

1-Aminocyclopropanecarboxylic acid

1-Aminocyclopropane-1-carboxylic acid

C4H7NO2 (101.0476762)


A non-proteinogenic alpha-amino acid consisting of cyclopropane having amino and carboxy substituents both at the 1-position. D002491 - Central Nervous System Agents > D018696 - Neuroprotective Agents D020011 - Protective Agents 1-Aminocyclopropane-1-carboxylic acid is an endogenous metabolite.

   

(R)-Leucic acid

(R)-2-Hydroxy-4-methylpentanoic acid

C6H12O3 (132.0786402)


The (R)-enantiomer of 2-hydroxy-4-methylpentanoic acid. Found in patients with short-bowel syndrome (an inborn error of metabolism), and in maple syrup urine disease, MSUD. (R)-Leucic acid is an amino acid metabolite[1].

   

Deoxycytidine 5-monophosphate

2-Deoxycytidine-5-monophosphoric acid

C9H14N3O7P (307.0569344)


A pyrimidine 2-deoxyribonucleoside 5-monophosphate having cytosine as the nucleobase. 2'-Deoxycytidine-5'-monophosphoric acid is an endogenous metabolite. 2'-Deoxycytidine-5'-monophosphoric acid is an endogenous metabolite.

   

2-Formylbenzoic acid

2-Carboxybenzaldehyde

C8H6O3 (150.03169259999999)


An aldehydic acid which consists of benzoic acid substituted by a formyl group at position 2. Metabolite of ampicillin phthalidyl ester. 2-Carboxybenzaldehyde is the major metabolite found in phenanthrene metabolism. Phenanthrene can be degrade by Pseudomonas sp. Lphe-2 strain[1].

   

3,4-Methylenedioxycinnamic acid

(2E)-3-(1,3-BENZODIOXOL-5-YL)-2-PROPENOIC ACID

C10H8O4 (192.0422568)


(E)-3,4-(Methylenedioxy)cinnamic acid is a cinnamic acid derivative obtained from the stem bark of Brombya platynema[1]. 3,4-Methylenedioxycinnamic acid is an inhibitor of the phenylpropanoid enzyme 4-hydroxycinnamoyl-CoA ligase. 3,4-Methylenedioxycinnamic acid increases the formation of soluble phenolics in particular of vanillic acid[1].

   

2,4-dihydroxybenzoic acid

2,4-dihydroxybenzoic acid

C7H6O4 (154.0266076)


2,4-Dihydroxybenzoic acid is a degradation product of cyaniding glycoside from tart cheeries in cell culture. 2,4-Dihydroxybenzoic acid is a degradation product of cyaniding glycoside from tart cheeries in cell culture.

   

L-(-)-3-Phenyllactic acid

L-(-)-3-Phenyllactic acid

C9H10O3 (166.062991)


(S)-2-Hydroxy-3-phenylpropanoic acid is a product of phenylalanine catabolism. An elevated level of phenyllactic acid is found in body fluids of patients with or phenylketonuria.

   

3-hydroxyhippuric acid

3-hydroxyhippuric acid

C9H9NO4 (195.0531554)


COVID info from PDB, Protein Data Bank Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS 3-Hydroxyhippuric acid is an acyl glycine. Acyl glycines are normally minor metabolites of fatty acids.

   

3-METHOXYBENZOIC ACID

3-METHOXYBENZOIC ACID

C8H8O3 (152.0473418)


A methoxybenzoic acid that is benzoic acid substituted by a methoxy group at position 3. 3-Methoxybenzoic acid can be used in the synthesis of 3-methoxybenzoates of europium (III) and gadolinium (III).

   

Phloroglucinol carboxylic acid

Phloroglucinol carboxylic acid

C7H6O5 (170.0215226)


2,4,6-Trihydroxybenzoic acid, the flavonoid metabolite, is a CDK inhibitor. 2,4,6-Trihydroxybenzoic acid can be used for the research of cancer[1].

   

β-Hydroxybutyric acid

β-Hydroxybutyric acid

C4H8O3 (104.0473418)


A straight-chain 3-hydroxy monocarboxylic acid comprising a butyric acid core with a single hydroxy substituent in the 3- position; a ketone body whose levels are raised during ketosis, used as an energy source by the brain during fasting in humans. Also used to synthesise biodegradable plastics. 3-Hydroxybutyric acid (β-Hydroxybutyric acid) is a metabolite that is elevated in type I diabetes. 3-Hydroxybutyric acid can modulate the properties of membrane lipids[1]. 3-Hydroxybutyric acid (β-Hydroxybutyric acid) is a metabolite that is elevated in type I diabetes. 3-Hydroxybutyric acid can modulate the properties of membrane lipids[1].

   

3-Hydroxyphenylpropanoate

3-(3-hydroxyphenyl)propanoic acid

C9H10O3 (166.062991)


A monocarboxylic acid that is propionic acid carrying a 3-hydroxyphenyl substituent at C-3. 3-(3-Hydroxyphenyl)propionic acid is a flavonoid metabolite formed by human microflora. 3-(3-Hydroxyphenyl)propionic acid shows vasodilatory activity[1]. 3-(3-Hydroxyphenyl)propionic acid is a flavonoid metabolite formed by human microflora. 3-(3-Hydroxyphenyl)propionic acid shows vasodilatory activity[1].

   

3-Methylvaleric acid

3-Methylvaleric acid

C6H12O2 (116.08372519999999)


A methyl-branched fatty acid that is pentanoic acid which carries a methyl group at position 3. 3-Methylvaleric Acid is a flavouring ingredient.

   

3-Hydroxydecanoic acid

3-Hydroxydecanoic acid

C10H20O3 (188.14123700000002)


A medium-chain fatty acid that is decanoic acid substituted at position 3 by a hydroxy group. 3-Hydroxycapric acid is an inhibitor for mitotic progression.

   

2-Methylcyclohexanone

2-Methylcyclohexanone

C7H12O (112.0888102)


A member of the class of cyclohexanones that is cyclohexanone substituted by a methyl group at position 2. 2-Methylcyclohexanone is an endogenous metabolite.

   

3-methoxyphenylacetic acid

3-methoxyphenylacetic acid

C9H10O3 (166.062991)


3-Methoxyphenylacetic acid (m-Methoxyphenylacetic acid), a m-hydroxyphenylacetic acid (m-OHPAA) derivative, is a phytotoxin in Rhizoctonia solani. 3-Methoxyphenylacetic acid is used to develop a toxin-mediated bioassay for resistance to rhizoctonia root rot[1].

   

3-METHYL-2-CYCLOPENTEN-1-ONE

3-METHYL-2-CYCLOPENTEN-1-ONE

C6H8O (96.0575118)


3-Methyl-2-cyclopenten-1-one is an endogenous metabolite. 3-Methyl-2-cyclopenten-1-one is an endogenous metabolite.

   

2,4-Dimethylacetophenone

2,4-Dimethylacetophenone

C10H12O (148.08881019999998)


2',4'-Dimethylacetophenone is an endogenous metabolite. 2',4'-Dimethylacetophenone is an endogenous metabolite.

   

2-Methylcitric acid

2-Methylcitric acid

C7H10O7 (206.042651)


2-Methylcitric acid (Methylcitric acid) is an endogenous metabolite in the 2-methylcitric acid cycle. 2-Methylcitric acid accumulates in methylmalonic and propionic acidemias and acts as a marker metabolite. 2-Methylcitric acid markedly inhibits ADP-stimulated and uncoupled respiration in mitochondria supported by glutamate[1]. 2-Methylcitric acid (Methylcitric acid) is an endogenous metabolite in the 2-methylcitric acid cycle. 2-Methylcitric acid accumulates in methylmalonic and propionic acidemias and acts as a marker metabolite. 2-Methylcitric acid markedly inhibits ADP-stimulated and uncoupled respiration in mitochondria supported by glutamate[1]. 2-Methylcitric acid (Methylcitric acid) is an endogenous metabolite in the 2-methylcitric acid cycle. 2-Methylcitric acid accumulates in methylmalonic and propionic acidemias and acts as a marker metabolite. 2-Methylcitric acid markedly inhibits ADP-stimulated and uncoupled respiration in mitochondria supported by glutamate[1].

   

3-(3,4,5-Trimethoxyphenyl)propanoic acid

3-(3,4,5-Trimethoxyphenyl)propanoic acid

C12H16O5 (240.0997686)


3-(3,4,5-Trimethoxyphenyl)propanoic acid is found in herbs and spices. 3-(3,4,5-Trimethoxyphenyl)propanoic acid is a constituent of Piper longum (long pepper) and Piper retrofractum (Javanese long pepper). 3-(3,4,5-Trimethoxyphenyl)propanoic acid is found in herbs and spices. 3-(3,4,5-Trimethoxyphenyl)propanoic acid is a constituent of Piper longum (long pepper) and Piper retrofractum (Javanese long pepper).

   

3,3-DIMETHYLGLUTARIC ACID

3,3-DIMETHYLGLUTARIC ACID

C7H12O4 (160.0735552)


An alpha,omega-dicarboxylic acid that is glutaric acid substituted by two methyl groups at the C-3 position. 3,3-Dimethylglutaric acid, a member of methyl-branched fatty acids, is a endogenous metabolite occasionally found in human urine[1].

   

DL-Citrulline

DL-Citrulline

C6H13N3O3 (175.0956868)


2-Amino-5-ureidopentanoic acid is an endogenous metabolite. 2-Amino-5-ureidopentanoic acid is an endogenous metabolite.

   

3-(3-Methoxyphenyl)propionic acid

3-(3-Methoxyphenyl)propionic acid

C10H12O3 (180.0786402)


3-(3-Methoxyphenyl)propionic acid is an organic acid, naturally occurring human metabolite and excreted in human urine.

   

4-Carboxypyrazole

1H-pyrazole-4-carboxylic acid

C4H4N2O2 (112.02727639999999)


4-Carboxypyrazole is an endogenous metabolite.

   

2'-Deoxycytidine-5'-diphosphate (trisodium)

2'-Deoxycytidine-5'-diphosphate (trisodium)

C9H12N3Na3O10P2 (452.9691032)


2'-Deoxycytidine-5'-diphosphate (dCDP) trisodium is an endogenous metabolite. 2'-Deoxycytidine-5'-diphosphate (dCDP) trisodium is an endogenous metabolite.

   

3′,5′-Dimethoxyacetophenone

3′,5′-Dimethoxyacetophenone

C8H8O3 (152.0473418)


3′,5′-Dimethoxyacetophenone is a natural ketone compound with antioxidant activities. 3′,5′-Dimethoxyacetophenone is a building block in the chemical synthesis[1]. 3′,5′-Dimethoxyacetophenone is a natural ketone compound with antioxidant activities. 3′,5′-Dimethoxyacetophenone is a building block in the chemical synthesis[1].