Exact Mass: 132.0898732
Exact Mass Matches: 132.0898732
Found 500 metabolites which its exact mass value is equals to given mass value 132.0898732,
within given mass tolerance error 0.05 dalton. Try search metabolite list with more accurate mass tolerance error
0.01 dalton.
Cinnamaldehyde
(E)-cinnamaldehyde is the E (trans) stereoisomer of cinnamaldehyde, the parent of the class of cinnamaldehydes. It has a role as a hypoglycemic agent, an EC 4.3.1.24 (phenylalanine ammonia-lyase) inhibitor, a vasodilator agent, an antifungal agent, a flavouring agent, a plant metabolite and a sensitiser. It is a 3-phenylprop-2-enal and a member of cinnamaldehydes. Cinnamaldehyde is a naturally occurring flavonoid that gives the spice cinnamon its flavour and odour. It occurs naturally in the bark of cinnamon trees and other species of the genus Cinnamomum such as camphor and cassia. Sensitivity to cinnamaldehyde may be identified with a clinical patch test. Cinnamaldehyde is a Standardized Chemical Allergen. The physiologic effect of cinnamaldehyde is by means of Increased Histamine Release, and Cell-mediated Immunity. Cinnamaldehyde is a natural product found in Chaerophyllum bulbosum, Cinnamomum sieboldii, and other organisms with data available. Cinnamaldehyde is the aldehyde that gives cinnamon its flavor and odor. Cinnamaldehyde occurs naturally in the bark of cinnamon trees and other species of the genus Cinnamomum like camphor and cassia. These trees are the natural source of cinnamon, and the essential oil of cinnamon bark is about 90\\\\% cinnamaldehyde. Cinnamaldehyde is also used as a fungicide. Proven effective on over 40 different crops, cinnamaldehyde is typically applied to the root systems of plants. Its low toxicity and well-known properties make it ideal for agriculture. To a lesser extent, cinnamaldehyde is an effective insecticide, and its scent is also known to repel animals like cats and dogs. Cinnamaldehyde is also known as a corrosion inhibitor for steel and other ferrous alloys in corrosive fluids. It can be used in combination with additional components such as dispersing agents, solvents and other surfactants. Concentrated cinnamaldehyde is a skin irritant, and the chemical is toxic in large doses, but no agencies suspect the compound is a carcinogen or poses a long-term health hazard. Most cinnamaldehyde is excreted in urine as cinnamic acid, an oxidized form of cinnamaldehyde. Cinnamaldehyde is a metabolite found in or produced by Saccharomyces cerevisiae. Cinnamaldehyde, also known as (E)-3-phenyl-2-propenal or 3-phenylacrylaldehyde, is a member of the class of compounds known as cinnamaldehydes. Cinnamaldehydes are organic aromatic compounds containing a cinnamlaldehyde moiety, consisting of a benzene and an aldehyde group to form 3-phenylprop-2-enal. Cinnamaldehyde is practically insoluble (in water) and an extremely weak basic (essentially neutral) compound (based on its pKa). Cinnamaldehyde is a sweet, candy, and cinnamon tasting compound and can be found in a number of food items such as sour cherry, rubus (blackberry, raspberry), horseradish, and sea-buckthornberry, which makes cinnamaldehyde a potential biomarker for the consumption of these food products. Cinnamaldehyde can be found primarily in feces, as well as in human neuron and skin tissues. Cinnamaldehyde exists in all eukaryotes, ranging from yeast to humans. Cinnamaldehyde is a non-carcinogenic (not listed by IARC) potentially toxic compound. Cinnamaldehyde is an organic compound with the formula C6H5CH=CHCHO. Occurring naturally as predominantly the trans (E) isomer, it gives cinnamon its flavor and odor. It is a flavonoid that is naturally synthesized by the shikimate pathway. This pale yellow, viscous liquid occurs in the bark of cinnamon trees and other species of the genus Cinnamomum. The essential oil of cinnamon bark is about 50\\\\% cinnamaldehyde . The specific symptoms that can result from cinnamic aldehyde allergy can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches (L2140) (T3DB). Cinnamaldehyde is the aldehyde that gives cinnamon its flavor and odor. Cinnamaldehyde occurs naturally in the bark of cinnamon trees and other species of the genus Cinnamomum like camphor and cassia. These trees are the natural source of cinnamon, and the essential oil of cinnamon bark is about 90\\\\% cinnamaldehyde. Cinnamaldehyde is also used as a fungicide. Proven effective on over 40 different crops, cinnamaldehyde is typically applied to the root systems of plants. Its low toxicity and well-known properties make it ideal for agriculture. To a lesser extent, cinnamaldehyde is an effective insecticide, and its scent is also known to repel animals like cats and dogs. Cinnamaldehyde is also known as a corrosion inhibitor for steel and other ferrous alloys in corrosive fluids. It can be used in combination with additional components such as dispersing agents, solvents and other surfactants. Concentrated cinnamaldehyde is a skin irritant, and the chemical is toxic in large doses, but no agencies suspect the compound is a carcinogen or poses a long-term health hazard. Most cinnamaldehyde is excreted in urine as cinnamic acid, an oxidized form of cinnamaldehyde. D020011 - Protective Agents > D016587 - Antimutagenic Agents D000074385 - Food Ingredients > D005503 - Food Additives D010592 - Pharmaceutic Aids > D005421 - Flavoring Agents D000970 - Antineoplastic Agents Acquisition and generation of the data is financially supported in part by CREST/JST. trans-Cinnamaldehyde can be used to prepare highly polyfunctionalized furan ring by reaction of alkyl isocyanides with dialkyl acetylenedicarboxylate[1]. trans-Cinnamaldehyde can be used to synthesize trans-cinnamaldehyde -β-cyclodextrin complex, an antimicrobial edible coating that increases the shelf life of fresh-cut fruits[2]. trans-Cinnamaldehyde can be used to prepare highly polyfunctionalized furan ring by reaction of alkyl isocyanides with dialkyl acetylenedicarboxylate[1]. trans-Cinnamaldehyde can be used to synthesize trans-cinnamaldehyde -β-cyclodextrin complex, an antimicrobial edible coating that increases the shelf life of fresh-cut fruits[2].
L-Ornithine
Ornithine, also known as (S)-2,5-diaminopentanoic acid or ornithine, (L)-isomer, 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. Ornithine is soluble (in water) and a moderately acidic compound (based on its pKa). Ornithine can be found in a number of food items such as pine nut, lingonberry, turnip, and cassava, which makes ornithine a potential biomarker for the consumption of these food products. Ornithine can be found primarily in most biofluids, including urine, cerebrospinal fluid (CSF), feces, and saliva, as well as throughout most human tissues. Ornithine exists in all living species, ranging from bacteria to humans. In humans, ornithine is involved in few metabolic pathways, which include arginine and proline metabolism, glycine and serine metabolism, spermidine and spermine biosynthesis, and urea cycle. Ornithine is also involved in several metabolic disorders, some of which include ornithine transcarbamylase deficiency (OTC deficiency), prolidase deficiency (PD), citrullinemia type I, and arginine: glycine amidinotransferase deficiency (AGAT deficiency). Moreover, ornithine is found to be associated with cystinuria, alzheimers disease, leukemia, and uremia. Ornithine is a non-carcinogenic (not listed by IARC) potentially toxic compound. Ornithine is a drug which is used for nutritional supplementation, also for treating dietary shortage or imbalance. it has been claimed that ornithine improves athletic performance, has anabolic effects, has wound-healing effects, and is immuno-enhancing. Ornithine is a non-proteinogenic amino acid that plays a role in the urea cycle. Ornithine is abnormally accumulated in the body in ornithine transcarbamylase deficiency. The radical is ornithyl . L-Ornithine is metabolised to L-arginine. L-arginine stimulates the pituitary release of growth hormone. Burns or other injuries affect the state of L-arginine in tissues throughout the body. As De novo synthesis of L-arginine during these conditions is usually not sufficient for normal immune function, nor for normal protein synthesis, L-ornithine may have immunomodulatory and wound-healing activities under these conditions (by virtue of its metabolism to L-arginine) (DrugBank). Chronically high levels of ornithine are associated with at least 9 inborn errors of metabolism including: Cystathionine Beta-Synthase Deficiency, Hyperornithinemia with gyrate atrophy, Hyperornithinemia-hyperammonemia-homocitrullinuria syndrome, Hyperornithinemia-hyperammonemia-homocitrullinuria syndrome, Hyperprolinemia Type II, Lysinuric Protein Intolerance, Ornithine Aminotransferase Deficiency, Ornithine Transcarbamylase Deficiency and Prolinemia Type II (T3DB). Ornithine or L-ornithine, also known as (S)-2,5-diaminopentanoic 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. L-ornithine is soluble (in water) and a moderately basic compound. Ornithine is a non-proteinogenic amino acid that plays a role in the urea cycle. It is considered to be a non-essential amino acid. A non-essential amino acid is an amino acid that can be synthesized from central metabolic pathway intermediates in humans and is not required in the diet. L-Ornithine is one of the products of the action of the enzyme arginase on L-arginine, creating urea. Therefore, ornithine is a central part of the urea cycle, which allows for the disposal of excess nitrogen. Outside the human body, L-ornithine is abundant in a number of food items such as wild rice, brazil nuts, common oregano, and common grapes. L-ornithine can be found throughout most human tissues; and in most biofluids, some of which include blood, urine, cerebrospinal fluid (CSF), sweat, saliva, and feces. L-ornithine exists in all living species, from bacteria to plants to humans. L-Ornithine is also a precursor of citrulline and arginine. In order for ornithine that is produced in the cytosol to be converted to citrulline, it must first cross the inner mitochondrial membrane into the mitochondrial matrix where it is carbamylated by the enzyme known as ornithine transcarbamylase. This transfer is mediated by the mitochondrial ornithine transporter (SLC25A15; AF112968; ORNT1). Mutations in the mitochondrial ornithine transporter result in hyperammonemia, hyperornithinemia, homocitrullinuria (HHH) syndrome, a disorder of the urea cycle (PMID: 16256388). The pathophysiology of the disease may involve diminished ornithine transport into mitochondria, resulting in ornithine accumulation in the cytoplasm and reduced ability to clear carbamoyl phosphate and ammonia loads (OMIM 838970). In humans, L-ornithine is involved in a number of other metabolic disorders, some of which include, ornithine transcarbamylase deficiency (OTC deficiency), argininemia, and guanidinoacetate methyltransferase deficiency (GAMT deficiency). Ornithine is abnormally accumulated in the body in ornithine transcarbamylase deficiency. Moreover, Ornithine is found to be associated with cystinuria, hyperdibasic aminoaciduria I, and lysinuric protein intolerance, which are inborn errors of metabolism. It has been claimed that ornithine improves athletic performance, has anabolic effects, has wound-healing effects, and is immuno-enhancing. L-Ornithine. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=70-26-8 (retrieved 2024-07-01) (CAS RN: 70-26-8). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). L-Ornithine ((S)-2,5-Diaminopentanoic acid) is a non-proteinogenic amino acid, is mainly used in urea cycle removing excess nitrogen in vivo. L-Ornithine shows nephroprotective[1][2]. L-Ornithine ((S)-2,5-Diaminopentanoic acid) is a non-proteinogenic amino acid, is mainly used in urea cycle removing excess nitrogen in vivo. L-Ornithine shows nephroprotective[1][2].
6-Hydroxyhexanoic acid
6-Hydroxyhexanoate was identified as the immediate product of hexanoate w-hydroxylation by whole cells and was further oxidized into adipic acid and an unexpected metabolite identified as 2-tetrahydrofuranacetic acid. This same metabolite, together with adipic acid, was also detected when similarly induced cells were incubated with hexanoate or 1,6-hexanediol, but not with 6-oxohexanoate (adipic semialdehyde).Cells grown on hexanoate and incubated with 6-hydroxyhexanoate were also found to accumulate 2-tetrahydrofuranacetic acid, which was not further degraded. Utilization of 6-hydroxyhexanoate for growth was restricted to those organisms also able to utilize adipate. Similar observations were made with 1,6-hexanediol serving as the carbon source and cells obtained from one organism,Pseudomonas aeruginosa PAO, grown either on 1,6-hexanediol or 6-hydroxyhexanoate,were found to be well induced for both 6-oxohexanoate and adipate oxidation. The results indicate that 6-hydroxyhexanoate and 1,6-hexanediol are susceptible to both 1B- and w-oxidative attack; however, the former pathway appears to be of no physiological significance since it generates 2-tetrahydrofuranacetic acid as a nonmetabolizable intermediate, making w-oxidation via adipate the exclusive pathway for degradation. [HMDB] 6-Hydroxyhexanoate was identified as the immediate product of hexanoate w-hydroxylation by whole cells and was further oxidized into adipic acid and an unexpected metabolite identified as 2-tetrahydrofuranacetic acid. This same metabolite, together with adipic acid, was also detected when similarly induced cells were incubated with hexanoate or 1,6-hexanediol, but not with 6-oxohexanoate (adipic semialdehyde).Cells grown on hexanoate and incubated with 6-hydroxyhexanoate were also found to accumulate 2-tetrahydrofuranacetic acid, which was not further degraded. Utilization of 6-hydroxyhexanoate for growth was restricted to those organisms also able to utilize adipate. Similar observations were made with 1,6-hexanediol serving as the carbon source and cells obtained from one organism,Pseudomonas aeruginosa PAO, grown either on 1,6-hexanediol or 6-hydroxyhexanoate,were found to be well induced for both 6-oxohexanoate and adipate oxidation. The results indicate that 6-hydroxyhexanoate and 1,6-hexanediol are susceptible to both 1B- and w-oxidative attack; however, the former pathway appears to be of no physiological significance since it generates 2-tetrahydrofuranacetic acid as a nonmetabolizable intermediate, making w-oxidation via adipate the exclusive pathway for degradation. KEIO_ID H061
Ethyl (±)-3-hydroxybutyrate
Ethyl (±)-3-hydroxybutyrate is a flavouring ingredient. Flavouring ingredient Ethyl 3-hydroxybutyrate is a fragrance found in wine and Tribolium castaneum[1][2]. Ethyl 3-hydroxybutyrate is a fragrance found in wine and Tribolium castaneum[1][2].
D-Leucic acid
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].
Paraldehyde
Paraldehyde is used as a food additive [EAFUS] ("EAFUS: Everything Added to Food in the United States. [http://www.eafus.com/]") D002491 - Central Nervous System Agents > D002492 - Central Nervous System Depressants > D006993 - Hypnotics and Sedatives N - Nervous system > N05 - Psycholeptics > N05C - Hypnotics and sedatives > N05CC - Aldehydes and derivatives D002491 - Central Nervous System Agents > D000927 - Anticonvulsants
D-NONOate
D002317 - Cardiovascular Agents > D020030 - Nitric Oxide Donors
D-Ornithine
D-Ornithine is an amino acid produced in the urea cycle by the splitting off of urea from arginine. Ornithine is one of the products of the action of the enzyme arginase on L-arginine, creating urea. Therefore, ornithine is a central part of the urea cycle, which allows for the disposal of excess nitrogen. D-Ornithine has been identified in the human placenta (PMID: 32033212). An amino acid produced in the urea cycle by the splitting off of urea from arginine. KEIO_ID O005
Ornithine
An alpha-amino acid that is pentanoic acid bearing two amino substituents at positions 2 and 5. L-Ornithine ((S)-2,5-Diaminopentanoic acid) is a non-proteinogenic amino acid, is mainly used in urea cycle removing excess nitrogen in vivo. L-Ornithine shows nephroprotective[1][2]. L-Ornithine ((S)-2,5-Diaminopentanoic acid) is a non-proteinogenic amino acid, is mainly used in urea cycle removing excess nitrogen in vivo. L-Ornithine shows nephroprotective[1][2].
2-Hydroxyhexanoic acid
A hydroxy fatty acid that is caproic (hexanoic) acid substituted by a hydroxy group at position 2. 2-Hydroxyhexanoic acid is an endogenous metabolite.
2-Hydroxycaproic acid
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.
Butoxyacetic acid
Butoxyacetic acid belongs to the family of Carboxylic Acids. These are compounds containing a carboxylic acid group with the formula -C(=O)OH.
(5R)-5-Hydroxyhexanoic acid
5-hydroxyhexanoic acid is produced during omega-oxidation of fatty acids in people unable to beta-oxidize fatty acids properly. Excessive excretion of 5-hydroxyhexanoic acid appears to be a part of Reyes syndrome. [HMDB] 5-hydroxyhexanoic acid is produced during omega-oxidation of fatty acids in people unable to beta-oxidize fatty acids properly. Excessive excretion of 5-hydroxyhexanoic acid appears to be a part of Reyes syndrome.
4-Methylpyrrolo[1,2-a]pyrazine
4-Methylpyrrolo[1,2-a]pyrazine is a component of roast beef aroma. Component of roast beef aroma
(3-Aminopropoxy)guanidine
(3-Aminopropoxy)guanidine is found in pulses. (3-Aminopropoxy)guanidine is a constituent of Canavalia gladiata (swordbean). Constituent of Canavalia gladiata (swordbean). (3-Aminopropoxy)guanidine is found in pulses.
Threo-3-Hydroxy-2-methylbutyric acid
Threo-3-Hydroxy-2-methylbutyric acid belongs to the family of Beta Hydroxy Acids and Derivatives. These are compounds containing a carboxylic acid substituted with a hydroxyl group on the C3 carbon atom
2-Ethyl-2-Hydroxybutyric acid
2-Ethyl-2-Hydroxybutyric acid, also known as 2-ethyl-2-hydroxybutanoate or 2-et-2-hba, 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-Ethyl-2-Hydroxybutyric acid is a very hydrophobic molecule, practically insoluble in water, and relatively neutral. 2-Ethyl-2-Hydroxybutyric acid is found in small amounts in the urine after intake of therapeutic doses of carbromal. Larger quantities are found in poisoning, hence its significance (PMID 13348692) [HMDB]
2-hydroxy-3-methylvalerate
2-Hydroxy-3-methylpentanoic acid or 2-hydroxy-3-methylvaleric acid (HMVA) is an organic acid generated by L-isoleucine metabolism. It is derived from the reduction of 2-Keto-3-methylvaleric acid (KMVA), possibly through the action of a lactate dehydrogenase (PMID: 1429566). There are 4 stereoisomers of HMVA (2S,3S-HMVA, 2R,3R-HMVA, 2S,3R-HMVA and 2R,3S-HMVA), of which the 2S,3S and 2S,3R derivatives are generally separable. HMVA is found in the urine and blood of normal individuals but in very elevated levels in patients with maple syrup urine disease (MSUD) (PMID: 1429566). Maple syrup urine disease (MSUD) is an inherited metabolic disease predominantly characterized by neurological dysfunction including psychomotor/delay/mental retardation. [HMDB] 2-Hydroxy-3-methylpentanoic acid or 2-hydroxy-3-methylvaleric acid (HMVA) is an organic acid generated by L-isoleucine metabolism. It is derived from the reduction of 2-Keto-3-methylvaleric acid (KMVA), possibly through the action of a lactate dehydrogenase (PMID: 1429566). There are 4 stereoisomers of HMVA (2S,3S-HMVA, 2R,3R-HMVA, 2S,3R-HMVA and 2R,3S-HMVA), of which the 2S,3S and 2S,3R derivatives are generally separable. HMVA is found in the urine and blood of normal individuals but in very elevated levels in patients with maple syrup urine disease (MSUD) (PMID: 1429566). Maple syrup urine disease (MSUD) is an inherited metabolic disease predominantly characterized by neurological dysfunction including psychomotor/delay/mental retardation.
1-Methylpyrrolo[1,2-a]pyrazine
1-Methylpyrrolo[1,2-a]pyrazine is a maillard product. Maillard product
xi-1-Butoxy-1-methoxyethane
xi-1-Butoxy-1-methoxyethane is found in fruits. xi-1-Butoxy-1-methoxyethane is detected in strawberry volatiles by gc-ms. Detected in strawberry volatiles by gc-ms. xi-1-Butoxy-1-methoxyethane is found in fruits.
p-Mentha-1,3,5,8-tetraene
Occurs in Chamaecyparis, Citrus, Eucalyptus, Juniperus and Ribes subspecies oils and juices. Flavouring ingredient. p-Mentha-1,3,5,8-tetraene is found in many foods, some of which are lemon, parsley, spearmint, and roman camomile. p-Mentha-1,3,5,8-tetraene is found in citrus. p-Mentha-1,3,5,8-tetraene occurs in Chamaecyparis, Citrus, Eucalyptus, Juniperus and Ribes species oils and juices. p-Mentha-1,3,5,8-tetraene is a flavouring ingredien
2-Methyl-3-hydroxyvaleric acid
2-Methyl-3-hydroxyvaleric acid might be a urine target compound in maple syrup urine disease.
5-Hydroxyhexanoic acid
5-Hydroxyhexanoic acid is a normal dicarboxylic acid degradation product of fatty acids; however, it has been found in patients with non-ketotic dicarboxylic aciduria and one patient on a diet containing excessive amounts of medium-chain triglycerides. Increased amounts of dicarboxylic acids are excreted in human urine under conditions of medium-chain triglyceride (MCT) feeding, abnormal fatty acid oxidation (FAO) and fasting. Criteria to distinguish dicarboxylic aciduria originating from MCT feeding and other conditions are needed in urinary organic acid profiling for detecting inborn errors of metabolism. Medium-chain triglycerides (MCTs) are absorbed and metabolized differently from long-chain triglycerides (LCTs). MCTs may be useful as a dietary substitute in a variety of clinical disorders. Urinary excretion of 5-hydroxyhexanoic acid, the (omega-1) hydroxylation product, was increased during MCT feeding as compared with LCT feeding in patients with non-insulin-dependent diabetes mellitus (PMID: 6897376, 2239769, 8596483). Moreover, 5-hydroxyhexanoic acid is also found to be associated with Medium chain acyl-CoA dehydrogenase deficiency (MCADD), which is also an inborn error of metabolism. 5-Hydroxyhexanoic acid has be found to be a microbial metabolite (PMID: 20615997). 5-Hydroxyhexanoic acid is a normal dicarboxylic acid degradation product of fatty acids; however, it has been found in patients with non-ketotic dicarboxylic aciduria and one patient on a diet containing excessive amounts of medium-chain triglycerides. Increased amounts of dicarboxylic acids are excreted in human urine under conditions of medium-chain triglyceride (MCT) feeding, abnormal fatty acid oxidation (FAO) and fasting. Criteria to distinguish dicarboxylic aciduria originating from MCT feeding and other conditions are needed in urinary organic acid profiling for detecting inborn errors of metabolism. Medium-chain triglycerides (MCTs) are absorbed and metabolized differently from long-chain triglycerides (LCTs). MCTs may be useful as a dietary substitute in a variety of clinical disorders. Urinary excretion of 5-hydroxyhexanoic acid, the (omega-1) hydroxylation product, was increased during MCT feeding as compared with LCT feeding in patients with non-insulin-dependent diabetes mellitus. (PMID: 6897376, 2239769, 8596483) [HMDB]
Leucinic acid
Leucinic acid, also known as leucic acid, 2-hydroxyisocaproic acid or 2-hydroxy-4-methylvaleric 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. Leucinic acid is a valeric acid derivative having a hydroxy substituent at the 2-position and a methyl substituent at the 4-position. It is an alpha-hydroxy analogue of leucine and a metabolite of the branched-chain amino acid leucine. Leucinic acid is found in all organisms ranging from bacteria to plants to animals. Leucinic acid has been found in a patient with dihydrolipoyl dehydrogenase (DLD) deficiency (PMID: 6688766). DLD deficiency is caused by mutations in the DLD gene and is inherited in an autosomal recessive manner. A common feature of dihydrolipoamide dehydrogenase deficiency is a potentially life-threatening buildup of lactic acid in tissues (lactic acidosis), which can cause nausea, vomiting, severe breathing problems, and an abnormal heartbeat. Neurological problems are also common in this condition; the first symptoms in affected infants are often decreased muscle tone (hypotonia) and extreme tiredness (lethargy). As the problems worsen, affected infants can have difficulty feeding, decreased alertness, and seizures. Liver problems can also occur in dihydrolipoamide dehydrogenase deficiency, ranging from an enlarged liver (hepatomegaly) to life-threatening liver failure. In some affected people, liver disease, which can begin anytime from infancy to adulthood, is the primary symptom. Leucinic acid is also present in the urine of patients with short bowel syndrome (PMID: 4018104) Leucinic acid has been isolated from amniotic fluid (PMID: 6467607), and have been found in a patient with dihydrolipoyl dehydrogenase deficiency (PMID 6688766).
Hydroxyisocaproic acid
Hydroxyisocaproic acid is an end product of leucine metabolism in human tissues such as muscle and connective tissue. It belongs to 2-hydroxycarboxylic acid group of amino acid metabolites (PMID 6434570). Hydroxyisocaproic acid functions as an “anti-catabolite” and is widely used in the body building community. Chronic alpha-hydroxyisocaproic acid treatment of rats has been shown to improve muscle recovery after immobilization-induced atrophy (PMID: 23757407). Additionally, a 4-week hydroxyisocaproic acid supplementation of 1.5 g a day was shown to lead to increases in muscle mass during an intensive training period among soccer athletes (PMID: 20051111). Hydroxyisocaproic acid has also shown some potential as a topical antibiotic (PMID: 22483561). Elevated levels of 2-hydroxyisocaproic acid have been found in the urine of patients with dihydrolipoyl dehydrogenase (E3) deficiency (PMID: 6688766). Hydroxyisocaproic acid is also elevated in maple syrup urine disease, a genetic disorder, and has been shown to accelerate lipid peroxidation. It may also be an indicator of oxidative stress (PMID: 11894849). Hydroxyisocaproic acid has been found to be a metabolite of Lactobacillus and fungal species (http://jultika.oulu.fi/files/isbn9789526211046.pdf). Hydroxyisocaproic acid is derived from the metabolism of the branched-chain amino acids. It belongs to 2-hydroxycarboxylic acid group of amino acid metabolites (PMID 6434570). [HMDB] (S)-Leucic acid is an amino acid metabolite.
(R)-3-Hydroxyhexanoic acid
==(R)==-3-Hydroxyhexanoic acid is a fatty acid formed by the action of fatty acid synthases from acetyl-CoA and malonyl-CoA precursors. It is involved in the fatty acid biosynthesis. Specifically, it is the product of reaction between 3-Oxohexanoic acid and 2 enzymes; fatty-acid Synthase and 3-oxoacyl- [acyl-carrier-protein] reductase. [HMDB] (R)-3-Hydroxyhexanoic acid is a fatty acid formed by the action of fatty acid synthases from acetyl-CoA and malonyl-CoA precursors. It is involved in fatty acid biosynthesis. Specifically, it is the product of a reaction between 3-oxohexanoic acid and 2 enzymes: fatty-acid synthase and 3-oxoacyl-[acyl-carrier-protein] reductase.
1-Nitrohexane
1-nitrohexane is oxidized by the enzyme flavoenzyme nitroalkane oxidase (PMID 19265437). Researchers have also proposed to use 1-nitrohexane as a retention index scale in reverse-phase high-performance liquid chromatography (PMID: 3350897).
4-Mercapto-4-methyl-2-pentanone
4-Mercapto-4-methyl-2-pentanone is found in alcoholic beverages. 4-Mercapto-4-methyl-2-pentanone is present in Sauvignon wine Present in Sauvignon wines. 4-Mercapto-4-methyl-2-pentanone is found in alcoholic beverages.
(+/-)-1-Acetoxy-1-ethoxyethane
(+/-)-1-Acetoxy-1-ethoxyethane is used as a food additive [EAFUS] ("EAFUS: Everything Added to Food in the United States. [http://www.eafus.com/]")
2,5-Dimethyl-3-mercaptotetrahydrofuran
2,5-Dimethyl-3-mercaptotetrahydrofuran is used as a food additive [EAFUS] ("EAFUS: Everything Added to Food in the United States. [http://www.eafus.com/]")
2-Heptanethiol
2-Heptanethiol is used as a food additive [EAFUS] ("EAFUS: Everything Added to Food in the United States. [http://www.eafus.com/]") It is used as a food additive . 2-Heptanethiol is found in green bell pepper.
Heptane-1-thiol
Heptane-1-thiol is used as a food additive [EAFUS] ("EAFUS: Everything Added to Food in the United States. [http://www.eafus.com/]")
4-(Methylthio)-2-pentanone
4-(Methylthio)-2-pentanone is used as a food additive [EAFUS] ("EAFUS: Everything Added to Food in the United States. [http://www.eafus.com/]")
4,4-Dimethoxy-2-butanone
4,4-Dimethoxy-2-butanone is a flavouring ingredient. Flavouring ingredient
3-Mercapto-2-methylpentanal
Aroma constituent of cut raw onion. 3-Mercapto-2-methylpentanal is found in onion-family vegetables. 3-Mercapto-2-methylpentanal is found in onion-family vegetables. Aroma constituent of cut raw onio
S-Methyl 3-methylthiobutyrate
S-Methyl 3-methylthiobutyrate is found in fruits. S-Methyl 3-methylthiobutyrate is produced by micrococaceae and coryneform bacteria isolated from cheeses. Also in hop oil, honeydew melon, galbanum oil and (tentatively) cantaloupes. S-Methyl 3-methylthiobutyrate is a flavouring ingredient. Production by micrococaceae and coryneform bacteria isolated from cheesesand is) also in hop oil, honeydew melon, galbanum oil and (tentatively) cantaloupes. Flavouring ingredient. S-Methyl 3-methylthiobutyrate is found in milk and milk products and fruits.
3-hydroxyhexanoate
3-Hydroxyhexanoic acid (CAS: 10191-24-9) is a hydroxy fatty acid. In humans, fatty acids are predominantly formed in the liver and adipose tissue, and mammary glands during lactation. 3-Hydroxyhexanoic acid has been identified in the human placenta (PMID: 32033212).
1-Methylthiopentan-3-one
1-methylthiopentan-3-one is a member of the class of compounds known as ketones. Ketones are organic compounds in which a carbonyl group is bonded to two carbon atoms R2C=O (neither R may be a hydrogen atom). Ketones that have one or more alpha-hydrogen atoms undergo keto-enol tautomerization, the tautomer being an enol. 1-methylthiopentan-3-one is slightly soluble (in water) and an extremely weak acidic compound (based on its pKa). 1-methylthiopentan-3-one can be found in kohlrabi, which makes 1-methylthiopentan-3-one a potential biomarker for the consumption of this food product.
2,5-Dimethylstyrene
2,5-dimethylstyrene is a member of the class of compounds known as styrenes. Styrenes are organic compounds containing an ethenylbenzene moiety. 2,5-dimethylstyrene can be found in rosemary, which makes 2,5-dimethylstyrene a potential biomarker for the consumption of this food product.
Methyl 3-hydroxyisovalerate
Methyl 3-hydroxyisovalerate is a member of the class of compounds known as fatty acid methyl esters. Fatty acid methyl esters are compounds containing a fatty acid that is esterified with a methyl group. They have the general structure RC(=O)OR, where R=fatty aliphatic tail or organyl group and R=methyl group. Methyl 3-hydroxyisovalerate is soluble (in water) and an extremely weak acidic compound (based on its pKa). Methyl 3-hydroxyisovalerate can be found in bilberry and black walnut, which makes methyl 3-hydroxyisovalerate a potential biomarker for the consumption of these food products.
1-decene-7,9-diyne|Dec-9-en-1,3-diin|dec-9-ene-1,3-diyne
3-Methylpyrrolo[1,2-a]pyrazine
A pyrrolopyrazine that is pyrrolo[1,2-a]pyrazine in which the hydrogen at position 3 is replaced by a methyl group.
Ethyl (±)-3-hydroxybutyrate
Ethyl 3-hydroxybutyrate is a clear colorless liquid. (NTP, 1992) Ethyl 3-hydroxybutyrate is the fatty acid ethyl ester of 3-hydroxybutyric acid. It has a role as a metabolite. It is functionally related to a 3-hydroxybutyric acid. Ethyl 3-hydroxybutyrate is a natural product found in Opuntia ficus-indica, Camellia sinensis, and Aeromonas veronii with data available. ethyl 3-hydroxybutanoate is a metabolite found in or produced by Saccharomyces cerevisiae. Ethyl (±)-3-hydroxybutyrate is a flavouring ingredient. The fatty acid ethyl ester of 3-hydroxybutyric acid. Flavouring ingredient Ethyl 3-hydroxybutyrate is a fragrance found in wine and Tribolium castaneum[1][2]. Ethyl 3-hydroxybutyrate is a fragrance found in wine and Tribolium castaneum[1][2].
2-Hydroxyhexanoate
KEIO_ID H036 2-Hydroxyhexanoic acid is an endogenous metabolite.
D-ornithine
The D-enantiomer of ornithine. It is an intermediate metabolite produced in the urea cycle.
L-Ornithine
L-Ornithine ((S)-2,5-Diaminopentanoic acid) is a non-proteinogenic amino acid, is mainly used in urea cycle removing excess nitrogen in vivo. L-Ornithine shows nephroprotective[1][2]. L-Ornithine ((S)-2,5-Diaminopentanoic acid) is a non-proteinogenic amino acid, is mainly used in urea cycle removing excess nitrogen in vivo. L-Ornithine shows nephroprotective[1][2].
6-HYDROXYCAPROIC ACID
An omega-hydroxy fatty acid comprising hexanoic acid having a hydroxy group at the 6-position.
polyornithine
An optically active form of ornithine having L-configuration. L-Ornithine ((S)-2,5-Diaminopentanoic acid) is a non-proteinogenic amino acid, is mainly used in urea cycle removing excess nitrogen in vivo. L-Ornithine shows nephroprotective[1][2]. L-Ornithine ((S)-2,5-Diaminopentanoic acid) is a non-proteinogenic amino acid, is mainly used in urea cycle removing excess nitrogen in vivo. L-Ornithine shows nephroprotective[1][2].
(5R)-5-Hydroxyhexanoic acid
An (omega-1)-hydroxy fatty acid that is caproic acid in which the 5-pro-R hydrogen is replaced by a hydroxy group.
4-Mercapto-4-methylpentan-2-one
An alkylthiol that is 4-methylpentan-2-one substituted at position 4 by a mercapto group.
Prenderol
C78272 - Agent Affecting Nervous System > C264 - Anticonvulsant Agent
(S)-3-AMINO-3-(4-TRIFLUOROMETHYLPHENYL)PROPIONICACID
1-allyl-4-methylbenzene
4-Allyltoluene, an aromatic compound, can elicite antennal olfactory response of Mediterranean fruit fly measured by electroantennography (EAG)[1].
(2S)-[1-[(2S)-2-AMINO-1-OXOBUTYL]-N-BUTYL]-2,3-DIHYDRO-1H-INDOLE-2-CARBOXAMIDEOXALATE
PARALDEHYDE
D002491 - Central Nervous System Agents > D002492 - Central Nervous System Depressants > D006993 - Hypnotics and Sedatives N - Nervous system > N05 - Psycholeptics > N05C - Hypnotics and sedatives > N05CC - Aldehydes and derivatives D002491 - Central Nervous System Agents > D000927 - Anticonvulsants
N-hydroxy-L-valinate
A monocarboxylic acid anion, obtained by removal of a proton from the carboxylic acid group of N-hydroxy-L-valine.
N-(3-aminopropyl)-N-hydroxyacetamide
A member of the class of acetohydroxamic acids that is trimethylenediamine bearing N-hydroxy and N-acetyl substituents.
1,1-Diethyl-2-hydroxy-2-nitrosohydrazine
D002317 - Cardiovascular Agents > D020030 - Nitric Oxide Donors
5-Ammoniolevulinic acid
A primary ammonium ion obtained by protonation of the amino group of 5-aminolevulinic acid.
Leucinium
C6H14NO2+ (132.10244840000001)
An alpha-amino-acid cation that is the conjugate acid of leucine, arising from protonation of the amino group.
Trimethyl(1-carboxyethyl)aminium
C6H14NO2+ (132.10244840000001)
(2S)-2,5-diamino-3,3,4,4,5,5-hexadeuteriopentanoic acid
Deuterio-[[deuterio(dimethyl)silyl]methyl]-dimethylsilane
Deuterio-[deuterio(dimethyl)silyl]-ethyl-methylsilane
(R)-Leucic acid
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].
(2R,4S)-2,4-diaminopentanoic acid
The (2R,4S)-diastereomer of 2,4-diaminopentanoic acid
(S)-2-hydroxy-4-methylpentanoic acid
The (S)-enantiomer of 2-hydroxy-4-methylpentanoic acid. Derived from the metabolism of the branched-chain amino acids, it belongs to the 2-hydroxycarboxylic acid group of amino acid metabolites.
DL-Leucic Acid
A valeric acid derivative having a hydroxy substituent at the 2-position and a methyl substituent at the 4-position; an alpha-hydroxy analogue of leucine. A bacterial metabolite, it has also been isolated from amniotic fluid, was found in a patient with dihydrolipoyl dehydrogenase deficiency and is present in the urine of patients with short bowel syndrome.
5-Hydroxyhexanoic acid
A medium-chain fatty acid that is hexanoic acid substituted at position 5 by a hydroxy group.
(2R,3S)-2-hydroxy-3-methylpentanoic acid
A valeric acid derivative having an (R)-hydroxy substituent at the 2-position and an (S)-methyl substituent at the 3-position; one of 4 steroisomers of 2-hydroxy-3-methylpentanoic acid, generated by isoleucine metabolism. Found at significantly higher levels than normal in patients with maple syrup urine disease (MSUD).
4-ETHENYL-1,2-DIMETHYLBENZENE
A member of the class of styrenes that is 1,2-dimethylbenzene substituted by a vinyl group at position 4.
3-hydroxy-2,2-dimethylbutyric acid
A 3-hydroxy monocarboxylic acid that is 2,2-dimethylbutyric acid carrying a single hydroxy substituent at position 3.
(2S,3R)-3-hydroxy-2-methylpentanoic acid
A diketide with a pentanoic acid structure substituted at the alpha and beta positions by methyl and hydroxy groups respectively.
2,4-diaminopentanoic acid
A diamino acid consisting of pentanoic acid having the amino substituents placed in the 2- and 4-positions.