Exact Mass: 140.024
Exact Mass Matches: 140.024
Found 500 metabolites which its exact mass value is equals to given mass value 140.024,
within given mass tolerance error 0.05 dalton. Try search metabolite list with more accurate mass tolerance error
0.01 dalton.
1-methyl-4-imidazoleacetate
Methylimidazoleacetic acid is the main metabolite of histamine. This end product of histamine catabolism is formed by N-methylation in the imidazole ring to methylhistamine by histamine methyltransferase (EC 2.1.1.8) and a subsequent oxidative deamination in the side chain by type B monoamine oxidase (EC 1.4.3.4). Based on studies, it is known that as much as 70 to 80 percent of the histamine metabolized in the body is excreted in the urine as methylimidazoleacetic acid. Thus, urinary methylimidazoleacetic acid being the major and specific histamine metabolite is a clear marker of any changes in histamine metabolism in the body. The urinary excretion of methylimidazoleacetic acid is considered a reliable indicator of histamine turnover rate in the body. The excretion of methylimidazoleacetic acid is higher in men than in women. However, this gender difference is abolished when corrected for creatinine excretion. A possible explanation is that basal histamine turnover is related to body size. There is no significant difference in methylimidazoleacetic acid excretion between smokers and non-smokers when analyzing absolute values (mg/24 h). When using methylimidazoleacetic acid values corrected for creatinine excretion female smokers have significantly higher methylimidazoleacetic acid excretion compared to nonsmokers (PMID:11411609, 7130180, 10350179, 10202992). Methylimidazoleacetic acid is the main metabolite of histamine. This end product of histamine catabolism is formed by N-methylation in the imidazole ring to methylhistamine by histamine methyltransferase (EC 2.1.1.8) and a subsequent oxidative deamination in the side chain by type B monoamine oxidase (EC 1.4.3.4). From studies is known that as much as 70 to 80 percent of the histamine metabolized in the body is excreted in the urine as Methylimidazoleacetic acid. Thus, urinary Methylimidazoleacetic acid being the major and specific histamine metabolite is a clear marker of any changes in histamine metabolism in the body. The urinary excretion of methylimidazoleacetic acid is considered a reliable indicator of histamine turnover rate in the body. The excretion of Methylimidazoleacetic acid is higher in men than women however; this gender difference is abolished when corrected for creatinine excretion. A possible explanation is that basal histamine turnover is related to body size. There is no significant difference in Methylimidazoleacetic acid excretion between smokers and non-smokers when analysing absolute values (mg/24 h). When using Methylimidazoleacetic acid values corrected for creatinine excretion female smokers have significantly higher Methylimidazoleacetic acid excretion compared to nonsmokers. (PMID: 11411609, 7130180, 10350179, 10202992) [HMDB]
Gentisyl alcohol
An aromatic primary alcohol that is benzyl alcohol substituted by hydroxy groups at positions 2 and 5. CONFIDENCE Culture of Penicillium eurotium strain
cis-4-Carboxymethylenebut-2-en-4-olide
This compound belongs to the family of Butenolides. These are dihydrofurans with a carbonyk group at the C2 carbon atom.
Gaboxadol
D018377 - Neurotransmitter Agents > D018682 - GABA Agents > D018755 - GABA Agonists D018373 - Peripheral Nervous System Agents > D018689 - Sensory System Agents D002491 - Central Nervous System Agents > D000927 - Anticonvulsants C78272 - Agent Affecting Nervous System > C241 - Analgesic Agent D002491 - Central Nervous System Agents > D000700 - Analgesics Same as: D04282 THIP (Gaboxadol) is a selective extrasynaptic GABAA receptors (eGABARs) agonist (with blood-brain barrier permeability), shows an EC50 value of 13 μM for δ-GABAAR. THIP induces strong tense GABAA-mediated currents in layer 2/3 neurons, but shows on effect on miniature IPSCs. THIP can be used in studies of sleep disorders[1][2][3].
5-Formyluracil
A pyrimidone resulting from the formal oxidation of the alcoholic hydroxy group of 5-hydroxymethyluracil to the corresponding aldehyde. It is a major one-electron photooxidation product of thymine in oligodeoxynucleotides. D009676 - Noxae > D009153 - Mutagens
Ethyl maltol
Ethyl maltol, also known as 3-hydroxy-2-ethyl-4-pyrone or indium ethylmaltol, is a member of the class of compounds known as pyranones and derivatives. These compounds contain a pyran ring which bears a ketone. Ethyl maltol is soluble (in water) and a very weakly acidic compound (based on its pKa). Ethyl maltol is an organic compound that is a common flavourant in some confectioneries. It is related to the more common flavorant maltol by replacement of the methyl group with an ethyl group. It is a white solid with a sweet smell that can be described as caramelized sugar and cooked fruit (Wikipedia). Ethyl maltol is a flavour enhancer, flavouring agent, and a sweetener. It has 4-6X the potency of 3-hydroxy-2-methyl-4H-pyran-4-one.
Flavour enhancer and flavouring agent, sweetener, 4-6 x potency of 3-Hydroxy-2-methyl-4H-pyran-4-one
Imidazole propionate
Imidazolepropionic acid, also known as deaminohistidine or 4-imidazolylpropionate, belongs to the class of organic compounds known as imidazolyl carboxylic acids and derivatives. These are organic compounds containing a carboxylic acid chain (of at least 2 carbon atoms) linked to an imidazole ring. Imidazolepropionic acid is a very strong basic compound (based on its pKa). Imidazolepropionic acid is a product of histidine metabolism which may involve oxidation or transamination. This compound is found in the urine of rats loaded with histidine (PMID: 6021220). Isolated from the fungus Coprinus atramentarius (common ink cap) Imidazole-5-propionic acid is a histidine metabolite[1].
2-Methoxy-1,3-benzenediol
2-Methoxy-1,3-benzenediol, also known as 2-methoxyresorcinol or 2-O-methylpyrogallol, belongs to the class of organic compounds known as methoxyphenols. Methoxyphenols are compounds containing a methoxy group attached to the benzene ring of a phenol moiety. 2-Methoxy-1,3-benzenediol is an extremely weak basic (essentially neutral) compound (based on its pKa). BioTransformer predicts that 2-methoxy-1,3-benzenediol is a product of 1-(2,4-dihydroxy-3-methoxyphenyl)-2-(3-hydroxy-4-methoxyphenyl)propan-1-one metabolism via a keto-hydrolysis-pattern5 reaction occurring in human gut microbiota and catalyzed by an unspecified-gutmicro enzyme (PMID: 30612223).
3-methoxybenzene-1,2-diol
3-methoxybenzene-1,2-diol is a predicted metabolite generated by BioTransformer¹ that is produced by the metabolism of 3-methoxyphenol. It is generated by cyp1a2 enzyme via a hydroxylation-of-benzene-ortho-to-edg reaction. This hydroxylation-of-benzene-ortho-to-edg occurs in humans.
Kahweofuran
Kahweofuran is found in coffee and coffee products. Kahweofuran is a constituent of the aroma of roasted coffee. Constituent of the aroma of roasted coffee. Kahweofuran is found in coffee and coffee products.
2-Acetyl-5-methylthiophene
2-Acetyl-5-methylthiophene is found in coffee and coffee products. Organoleptic. 2-Acetyl-5-methylthiophene is a constituent of coffee aroma. Organoleptic. Constituent of coffee aroma. 2-Acetyl-5-methylthiophene is found in coffee and coffee products.
Ethyl furoate
Ethyl furoate belongs to the family of Furoic Acid Derivatives. These are organic compounds containing a furoic acid moiety, whose structure is characterized by a furan ring bearing a carboxylic acid group at the C2 or C3 carbon atom. Flavouring compound [Superscent]
2-Methyl-(3 or 5 or 6)-(methylthio)pyrazine (mixture of isomers)
2-Methyl-3-(methylthio)pyrazine is found in coffee and coffee products. 2-Methyl-3-(methylthio)pyrazine is a constituent of coffee aroma and flavouring agent *FEMA 3208*, as mixture with regioisomers. Constituent of coffee aroma and flavouring agent *FEMA 3208*, as mixture with regioisomers. 2-Methyl-3-(methylthio)pyrazine is found in coffee and coffee products.
Ethyl 3-furoate
Ethyl 3-furoate belongs to the family of Furoic Acid Derivatives. These are organic compounds containing a furoic acid moiety, whose structure is characterized by a furan ring bearing a carboxylic acid group at the C2 or C3 carbon atom.
1,3-Dimethyluracil
1,3-Dimethyluracil is a methyl derivative of uric acid, found occasionally in human urine. 1,3-Dimethyluracil is one of the purine component in urinary calculi. Methylated purines originate from the metabolism of methylxanthines (caffeine, theophylline and theobromine). Methyluric acids are indistinguishable from uric acid by simple methods routinely used in clinical laboratories, requiring the use of high-performance liquid chromatography (HPLC). Purine derivatives in urinary calculi could be considered markers of abnormal purine metabolism. The content of a purine derivative in stone depends on its average urinary excretion in the general population, similarity to the chemical structure of uric acid, and content of the latter in stone. This suggests that purines in stones represent a solid solution with uric acid as solvent. It is also plausible that methylxanthines, ubiquitous components of the diet and drugs, are involved in the pathogenesis of urolithiasis. (PMID: 11712316, 15833286, 3506820) [HMDB] 1,3-Dimethyluracil is a methyl derivative of uric acid, found occasionally in human urine. 1,3-Dimethyluracil is one of the purine component in urinary calculi. Methylated purines originate from the metabolism of methylxanthines (caffeine, theophylline and theobromine). Methyluric acids are indistinguishable from uric acid by simple methods routinely used in clinical laboratories, requiring the use of high-performance liquid chromatography (HPLC). Purine derivatives in urinary calculi could be considered markers of abnormal purine metabolism. The content of a purine derivative in stone depends on its average urinary excretion in the general population, similarity to the chemical structure of uric acid, and content of the latter in stone. This suggests that purines in stones represent a solid solution with uric acid as solvent. It is also plausible that methylxanthines, ubiquitous components of the diet and drugs, are involved in the pathogenesis of urolithiasis. (PMID:11712316, 15833286, 3506820). 1,3-Dimethyluracil is a pyrimidone derives from a uracil. 1,3-Dimethyluracil found occasionally in human urine. 1,3-Dimethyluracil shows inhibition activity against hCA I and hCA II (human carbonic anhydrase) with Ki of 316.2 μM and 166.4 μM, respectively[1][2].
2-(Methylthio)phenol
2-(Methylthio)phenol is found in coffee and coffee products. 2-(Methylthio)phenol is present in coffee. 2-(Methylthio)phenol is a flavouring agent. Present in coffee. Flavouring agent. 2-(Methylthio)phenol is found in coffee and coffee products.
3,5-Dihydroxyanisole
3,5-Dihydroxyanisole, also known as 5-methoxyresorcinol or flamenol, belongs to the class of organic compounds known as methoxyphenols. Methoxyphenols are compounds containing a methoxy group attached to the benzene ring of a phenol moiety. 3,5-Dihydroxyanisole is an extremely weak basic (essentially neutral) compound (based on its pKa). Outside of the human body, 3,5-dihydroxyanisole has been detected, but not quantified in, several different foods, such as annual wild rice, prairie turnips, thistles, grapefruit/pummelo hybrids, and pecan nuts. This could make 3,5-dihydroxyanisole a potential biomarker for the consumption of these foods. BioTransformer predicts that 3,5-dihydroxyanisole is a product of helichrysetin metabolism via a keto-hydrolysis-pattern5 reaction occurring in human gut microbiota and catalyzed by an unspecified-gutmicro enzyme (PMID: 30612223). 5-methoxybenzene-1,3-diol, also known as flamenol or 5-methoxyresorcinol, is a member of the class of compounds known as methoxyphenols. Methoxyphenols are compounds containing a methoxy group attached to the benzene ring of a phenol moiety. 5-methoxybenzene-1,3-diol is soluble (in water) and a very weakly acidic compound (based on its pKa). 5-methoxybenzene-1,3-diol can be found in a number of food items such as chinese mustard, malus (crab apple), broad bean, and nanking cherry, which makes 5-methoxybenzene-1,3-diol a potential biomarker for the consumption of these food products. C78272 - Agent Affecting Nervous System > C29698 - Antispasmodic Agent
Pi-Methylimidazoleacetic acid
Although pi-Methylimidazoleacetic acids isomer (1,4-Methylimidazoleacetic acid) is a known metabolite of Histamine, the origin of N pi-methylimidazoleacetic acid is not certain (PMID 7130180). [HMDB] Although pi-Methylimidazoleacetic acids isomer (1,4-Methylimidazoleacetic acid) is a known metabolite of Histamine, the origin of N pi-methylimidazoleacetic acid is not certain (PMID 7130180).
2-Methoxybenzenethiol
2-Methoxybenzenethiol is used as a food additive [EAFUS] ("EAFUS: Everything Added to Food in the United States. [http://www.eafus.com/]")
2-Propanoylthiophene
2-Propanoylthiophene is a maillard product. Maillard product
Furfuryl acetate
Furfuryl acetate is found in alcoholic beverages. Furfuryl acetate is a flavouring ingredient. Furfuryl acetate is present in wheat bread, crisp bread, roasted onion, pork liver, beer, rum, cocoa, coffee, roasted filbert, roasted peanut, roasted almond, shoyu, sukiyake, liquorice and Bourbon vanill Furfuryl acetate is a flavouring ingredient. It is found in wheat bread, crisp bread, roasted onion, pork liver, beer, rum, cocoa, coffee, roasted filbert, roasted peanut, roasted almond, shoyu, sukiyake, liquorice and Bourbon vanilla. Furfuryl acetate can be used in the synthesis of 5-acetoxymethyl-2-vinylfuran and 5-hydroxymethyl-2-vinylfuran[1].
Pyrazineethanethiol
Pyrazineethanethiol is a flavouring ingredient. Flavouring ingredient
2-Methyl-5-(methylthio)pyrazine
2-Methyl-5-(methylthio)pyrazine is a flavouring ingredient with roasted almond/hazelnut flavour. 2-Methyl-5-(methylthio)pyrazine is a component of FEMA 3208 together with regioisomers. Flavouring ingredient with roasted almond/hazelnut flavour. Component of FEMA 3208 together with regioisomers
2-Methyl-6-(methylthio)pyrazine
2-Methyl-6-(methylthio)pyrazine is a flavouring ingredient with roasted almond-hazelnut aroma. 2-Methyl-6-(methylthio)pyrazine is a component of FEMA 3208, together with regioisomers. Flavouring ingredient with roasted almond-hazelnut aroma. Component of FEMA 3208, together with regioisomers
2-Acetyl-3-methylthiophene
2-Acetyl-3-methylthiophene is a flavouring ingredient with a honey-like flavour. Flavouring ingredient with a honey-like flavour
trans-4-Carboxymethylenebut-2-en-4-olide
This compound belongs to the family of Butenolides. These are dihydrofurans with a carbonyk group at the C2 carbon atom.
3-chlorobenzaldehyde
3-chlorobenzaldehyde belongs to benzoyl derivatives class of compounds. Those are organic compounds containing an acyl moiety of benzoic acid with the formula (C6H5CO-). 3-chlorobenzaldehyde is practically insoluble (in water) and an extremely weak basic (essentially neutral) compound (based on its pKa). 3-chlorobenzaldehyde can be found in a number of food items such as calabash, black raspberry, ginger, and tartary buckwheat, which makes 3-chlorobenzaldehyde a potential biomarker for the consumption of these food products.
1H-imidazole-1-propanoic acid
An imidazolyl carboxylic acid that is propanoic acid in which one of the methyl hydrogens is substituted by an imidazol-1-yl group. It is a metabolite of histidine found in human urine and faeces.
phenylmethanesulfenic acid
Phenyl-methanesulfonic acid is a sulfonic acid that inhibits the oxidation of hydroxyl groups to form reactive oxygen species. It has been shown to have antihypertensive activity and inhibit the production of bowel disease enzymes, such as casein, growth factor, and inflammatory bowel disease enzymes. Phenyl-methanesulfonic acid has also been shown to be an effective inhibitor of light exposure in cells, which may be due to its ability to increase the production of a protein called melanin.
Coumalic_acid
Coumalic acid is a pyranone.
1,3-Dimethyluracil
A pyrimidone that is uracil with methyl group substituents at positions 1 and 3. 1,3-Dimethyluracil is a pyrimidone derives from a uracil. 1,3-Dimethyluracil found occasionally in human urine. 1,3-Dimethyluracil shows inhibition activity against hCA I and hCA II (human carbonic anhydrase) with Ki of 316.2 μM and 166.4 μM, respectively[1][2].
1-Methyl-5-imidazoleacetic acid
An imidazolyl carboxylic acid that is acetic acid in which one of the methyl hydrogens is substituted by a 1-methylimidazol-5-yl group.
Furfuryl acetate
Furfuryl acetate can be used in the synthesis of 5-acetoxymethyl-2-vinylfuran and 5-hydroxymethyl-2-vinylfuran[1].
CIS-TETRAHYDRO-1H-CYCLOPENTA[C]FURAN-1,3(3AH)-DIONE
1-Cyclopentene-1-carboxylicacid,5-oxo-,methylester(9CI)
POLYPROPYLENE-GRAFT-MALEIC ANHYDRIDE, AV ERAGE MW CA. 9,100
4-Pyrimidinecarboxaldehyde, 1,2-dihydro-2-thioxo- (9CI)
1H-Imidazole-1-carboxylicacid,2-methyl-,methylester(9CI)
Alanine, 3-amino-, hydrochloride (1:1)
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.
1H-Pyrazole-3-carboxylicacid,4-methyl-,methylester(9ci)
2-Oxabicyclo[3.1.0]hex-3-ene-6-carboxylicacid,methylester(7CI)
1H-IMIDAZOLE-5-CARBOXYLIC ACID, 4-METHYL-, METHYL ESTER
2(3H)-Furanone, 4-ethynyldihydro-5-hydroxy-3-methyl- (9CI)
Pyrrole-3-carboxylic acid, 5-amino-2-methyl- (8CI)
1-Cyclopentene-1-carboxylicacid,3-oxo-,methylester(9CI)
Lesogaberan
D018377 - Neurotransmitter Agents > D018682 - GABA Agents > D018755 - GABA Agonists C78276 - Agent Affecting Digestive System or Metabolism D005765 - Gastrointestinal Agents
3-(2-Methylidenecyclopropyl)-2-oxopropanoic acid
D009676 - Noxae > D011042 - Poisons > D007005 - Hypoglycins
2-Ammonioethyl phosphate
COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS
(2e)-2-Ethylidene-4-Hydroxy-5-Methylfuran-3(2h)-One
2-Aminomuconate 6-semialdehyde(1-)
Conjugate base of 2-aminomuconic 6-semialdehyde arsing from deprotonation of the carboxylic acid function. COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS
3,6-Dihydroxypyridine-2,5-dione(1-)
An organic anion that is the conjugate base of 3,6-dihydroxypyridine-2,5-dione, obtained by selective deprotonation of the hydroxy group at positions 2.
4-FLUOROBENZOIC ACID
A fluorobenzoic acid carrying a fluoro substituent at position 4.
(S)-2-Hydroxypropylphosphonic acid
2-Hydroxypropylphosphonic acid with S configuration at the chiral centre.
O-phosphonatoethanaminium(1-)
An organophosphate oxoanion that is the conjugate base of O-phosphoethanolamine arising from deprotonation of the phosphate OH groups and protonation of the amino group; major species at pH 7.3.
cis,cis-Muconate
A muconate that is the conjugate base of (2Z,4Z)-5-carboxypenta-2,4-dienoate.
2-hydroxypropylphosphonic acid
A phosphonic acid consisting of propan-2-ol with the phospho group at the 1-position.
Cis,trans-muconate
A muconate that is the dianion obtained by the deprotonation of both the carboxy groups of cis,trans-muconic acid.
trans,trans-Muconate
A muconate that is the dianion obtained by the deprotonation of both the carboxy groups of trans,trans-muconic acid.
(2E)-2-ethylidene-4-hydroxy-5-methyl-3(2H)-furanone
A member of the class of furans that is (2E)-2-ethylidenefuran-3(2H)-one carrying additional hydroxy and methyl substituents at positions 4 and 5 respectively.
beta-(methylenecyclopropyl)pyruvic acid
A 2-oxo monocarboxylic acid that is pyruvic acid in which one of the methyl hydrogens has been replaced by a methylenecyclopropyl group.
