Exact Mass: 193.0218
Exact Mass Matches: 193.0218
Found 500 metabolites which its exact mass value is equals to given mass value 193.0218,
within given mass tolerance error 0.05 dalton. Try search metabolite list with more accurate mass tolerance error
0.01 dalton.
L-Dopachrome
Dopachrome is a cyclization product of L-DOPA and is an intermediate in the biosynthesis of melanin. Dopaquinone has an ortho-quinone ring, which is known to be neurotoxic and highly reactive with many other compounds (PMID: 413870). Dopachrome spontaneously gives rise to 5,6-dihydroxyindole (DHI) or it can be enzymatically metabolized by dopachrome tautomerase to give 5,6-dihydroxyindole-2-carboxylic acid (DHICA). DHI and its oxidation products are also toxic to cells. Many Parkinsons patients are treated with L-DOPA. However, long-term treatment with L-DOPA may actually worsen symptoms or may result in neurotic and psychotic symptoms. These may be due to dopachrome and dopaquinone accumulating in the brain of L-DOPA treated patients (PMID: 19131041, PMID: 12373519). The non-decarboxylative tautomerization of L-dopachrome to 5,6-dihydroxyindole-2-carboxylic acid in the melanin biosynthetic pathway is catalyzed by Tyrosinase-related protein-2, a melanocyte-specific enzyme. (PMID 11095412) [HMDB]
5,6-Dihydroxyindole-2-carboxylic acid
5,6-Dihydroxyindole-2-carboxylic acid is an intermediate in the metabolism of Tyrosine. It is a substrate for Dopachrome tautomerase. [HMDB] 5,6-Dihydroxyindole-2-carboxylic acid is an intermediate in the metabolism of Tyrosine. It is a substrate for Dopachrome tautomerase.
3-Amino-4,7-dihydroxycoumarin
A hydroxycoumarin that is 4,7-dihydroxycoumarin bearing an additional amino substituent at positions 3.
Toxoflavin
A pyrimidotriazine that is 1,6-dimethyl-1,5,6,7-tetrahydropyrimido[5,4-e][1,2,4]triazine with oxo groups at positions 5 and 7.
D-Dopachrome
D-dopachrome is reversibly converted into 5,6-dihydroxyindole and carbon dioxide via the enzyme D-dopachrome decarboxylase (EC 4.1.1.84). Cultured human melanoma cells contain this enzyme as well as human liver (PMID: 8267597). Dopaquinone has an ortho-quinone ring, which is known to be neurotoxic and highly reactive with many other compounds (PMID: 413870). D-dopachrome is reversibly converted to 5,6-dihydroxyindole and carbon dioxide via the enzyme D-dopachrome decarboxylase (EC 4.1.1.84). (KEGG) Cultured human melanoma cells contain this enzyme as well as human liver. (PMID 8267597) [HMDB]
5-Fluoroindole-3-acetic acid
D006133 - Growth Substances > D010937 - Plant Growth Regulators > D007210 - Indoleacetic Acids
S-(Allylthio)-L-cysteine
S-(Allylthio)-L-cysteine is found in onion-family vegetables. S-(Allylthio)-L-cysteine is isolated from garlic (Allium sativum). Potential nutriceutical. Isolated from garlic (Allium sativum). Potential nutriceutical. S-(Allylthio)-L-cysteine is found in garlic and onion-family vegetables.
Phosphocreatinine
Phosphocreatinine is found in milk.
6-Hydroxymethylpterin
6-hydroxymethylpterin, also known as 2-amino-6-(hydroxymethyl)-4(1h)-pteridinone, belongs to pterins and derivatives class of compounds. Those are polycyclic aromatic compounds containing a pterin moiety, which consist of a pteridine ring bearing a ketone and an amine group to form 2-aminopteridin-4(3H)-one. 6-hydroxymethylpterin is slightly soluble (in water) and a very weakly acidic compound (based on its pKa). 6-hydroxymethylpterin can be found in soy bean, which makes 6-hydroxymethylpterin a potential biomarker for the consumption of this food product.
5,6-Dioxo-3,7-dihydro-2H-indole-2-carboxylic acid
S-Allylmercaptocysteine
S-allylmercaptocysteine, also known as samc cpd, is a member of the class of compounds known as L-cysteine-s-conjugates. L-cysteine-s-conjugates are compounds containing L-cysteine where the thio-group is conjugated. S-allylmercaptocysteine is slightly soluble (in water) and a moderately acidic compound (based on its pKa). S-allylmercaptocysteine can be found in soft-necked garlic, which makes S-allylmercaptocysteine a potential biomarker for the consumption of this food product.
trans-S-(1-Propenyl)-cysteine disulfide
Trans-s-(1-propenyl)-cysteine disulfide is slightly soluble (in water) and a moderately acidic compound (based on its pKa). Trans-s-(1-propenyl)-cysteine disulfide can be found in soft-necked garlic, which makes trans-s-(1-propenyl)-cysteine disulfide a potential biomarker for the consumption of this food product.
N2-Acetylguanine
relative retention time with respect to 9-anthracene Carboxylic Acid is 0.279 relative retention time with respect to 9-anthracene Carboxylic Acid is 0.278 relative retention time with respect to 9-anthracene Carboxylic Acid is 0.270 relative retention time with respect to 9-anthracene Carboxylic Acid is 0.271 N2-Acetylguanine is a C2-modified guanine. N2-Acetylguanine binds GR (guanine-guanine riboswitch) with an Kd value of 300 nM. N2-Acetylguanine modulate transcriptional termination. N2-Acetylguanine has the potential for the research of antimicrobial agent[1].
S-(2-boronoethyl)-L-cysteine
L-cysteine substituted at sulfur by a 2-boronoethyl group. D004791 - Enzyme Inhibitors
methyl 5-(trifluoromethyl)-1H-pyrrole-2-carboxylate
1H-Cyclopenta[4,5]pyrrolo[2,3-e]benzimidazole(9CI)
Methyl 4-oxo-3-piperidinecarboxylate hydrochloride
1H-Benzimidazole-5-carboxamide,2,3-dihydro-2-thioxo-(9CI)
3-Oxo-3,4-dihydro-2H-1,4-benzoxazine-6-carboxylic acid
3,6-difluoropyridine-2-carboximidamide,hydrochloride
3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE-5-CARBOXYLIC ACID
(R)-1-(2,5-Difluorophenyl)ethanamine hydrochloride
5-methyl-7-oxo-1H-pyrazolo[1,5-a]pyrimidine-2-carboxylic acid
2-Methyl-4-(difluoromethyl)-1,3-thiazole-5-carboxylic acid
2,2,2-TRIFLUORO-1-(3-FLUOROPHENYL)ETHYLAMINE HYDROCHLORIDE
5-Amino-2-thiophenecarboxylic acid methyl ester hydrochloride
Methyl 2-oxo-2,3-dihydro-1,3-benzoxazole-6-carboxylate
1-(3-AMINO-4,6-DIMETHYLTHIENO[2,3-B]PYRIDIN-2-YL)ETHANONE
Benzenamine,5-chloro-2-methoxy-, hydrochloride (1:1)
4-AMINOMETHYL-1-(4-METHOXY-PHENYL)-PYRROLIDIN-2-ONE
1-methyl-2-(1,3-thiazol-2-yl)imidazole-4-carbaldehyde
NATRIUM-3-(METHOXYCARBONYL)-2-OXO-1,2,5,6-TETRAHYDROPYRIDINE4-OLAAT
Methyl 4-oxopiperidine-3-carboxylate hydrochloride
(3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZIN-6-YL)BORONIC ACID
4-Amino-1,1-dioxo-tetrahydro-2H-thiopyran-4-carboxylic acid
2-Benzothiazolecarboxylicacid,6-methyl-(7CI,8CI,9CI)
2-amino-4-chloro-7H-pyrrolo[2,3-d]pyrimidine-5-carbonitrile
Methyl 4-aminothiophene-3-carboxylate hydrochloride
THIENO[3,2-B]PYRIDINE-6-CARBOXYLIC ACID METHYL ESTER
2-Methyl-7-oxo-4,7-dihydropyrazolo[1,5-a]pyriMidine-6-carboxylic acid
1H-Benzimidazole-4-carboxamide,2,3-dihydro-2-thioxo-
3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE-8-CARBOXYLIC ACID
7-OXO-5,6,7,8-TETRAHYDROPYRIDO[2,3-D]PYRIMIDINE-4-CARBOXYLIC ACID
5-Methyl-4-oxo-1,4-dihydropyrrolo[1,2-f][1,2,4]triazine-6-carboxylic acid
(S)-1-(2,6-Difluorophenyl)ethanamine hydrochloride
5-methyl-2-thiophen-2-yl-1,3-oxazole-4-carbaldehyde
3-Amino-4-hydroxy-1H-pyrrolo[2,3-b]pyridine-2-carboxylic acid
2-Cyano-4-fluoro-6-methyl-benzoic acid methyl ester
3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]THIAZINE-6-CARBALDEHYDE
Pyridine, 2-(chloromethyl)-5-Methoxy-, hydrochloride
1H-Pyrazole-4-carboxamide, 1-methyl-3-(trifluoromethyl)
6,7-Dihydro-5H-pyrrolo-[3,4-d]-pyrimidine dihydrochloride
2-amino-4,4,4-trifluoro-n-butyric acid hydrochloride
2-(CHLOROMETHYL)-6-METHYLPYRIDIN-3-OL HYDROCHLORIDE
3-fluoro-6-(trifluoromethyl)pyridine-2-carbaldehyde
1-(2-Fluorophenyl)-3-methyl-4,5-2H-1,2,4-triazol-one
Benzene, 1-[(1R)-1-isothiocyanatoethyl]-3-methoxy- (9CI)
Methyl 2-oxo-2,3-dihydro-1,3-benzoxazole-5-carboxylate
3-Oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxylicacid
2-Chloro-6-ethyl-5-fluoro-4-hydroxy pyrimidine ammonium salt
ethyl 4-hydroxy-5H-pyrrolo[3,2-d]pyrimidine-7-carboxylate
2-Amino-4-(trifluoromethyl)-1,3-thiazole-5-carbonitrile
2-(2-(methylthio)pyrimidin-4-yl)-3-oxopropanenitrile
(4R,5S)-(+)-4-METHYL-5-PHENYL-1,3-OXAZOLIDINE-2-THIONE
2-[(4-CHLORO-[1,2,5]THIADIAZOL-3-YL)-METHYL-AMINO]-ETHANOL
(S)-1-(2,4-Difluorophenyl)ethanamine hydrochloride
D-Glucopyranuronic acid, ion(1-)
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5,7-Dimethylpyrimido[4,5-e][1,2,4]triazine-6,8-dione
p-Aminohippurate
A hippurate that is the conjugate base of p-aminohippuric acid, arising from deprotonation of the carboxy group. D019995 - Laboratory Chemicals > D007202 - Indicators and Reagents
2-Amino-4-oxo-4,7-dihydro-3H-pyrrolo[2,3-d]pyrimidine-5-carboxamide
Autoinducer-2
An organic anion that is a borate diester derived from a furanose and acts a universal signal molecule mediating intra- and interspecies communication among bacteria.
beta-D-glucuronate
A D-glucopyranuronate that has beta configuration at the anomeric centre.
Aldehydo-L-iduronate
An iduronate that is the conjugate base of aldehydo-L-iduronic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3.
5-dehydro-D-Gluconate
A carbohydrate acid anion that is the conjugate base of 5-dehydro-D-gluconic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3.
2-Dehydro-D-gluconate
A keto-D-gluconate that is the conjugate base of 2-dehydro-D-gluconic acid, obtained by deprotonation of the carboxy group.
aldehydo-D-glucuronate
A D-glucuronate resulting from the deprotonation of the carboxy group of aldehydo-D-glucuronic acid; the major species at pH 7.3.
(2S,4R,5S)-2,4,5,6-tetrahydroxy-3-oxohexanoate
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beta-D-Galacturonate
A D-galactopyranuronate that has beta configuration at the anomeric centre.
5-dehydro-L-gluconate
A ketogluconate that is the conjugate base of 5-dehydro-L-gluconic acid, obtained by deprotonation of the carboxy group. Major microspecies at pH 7.3
(2S,3R,4S,5R)-3,4,5,6-tetrahydroxyoxane-2-carboxylate
alpha-D-Galacturonate
A carbohydrate acid anion that is the conjugate base of alpha-D-galacturonic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. D000074385 - Food Ingredients > D005503 - Food Additives > D010368 - Pectins
gamma-Thiomethyl glutamate
A glutamic acid derivative with a methylsulfanyl group at position 4.
3,4,5,6-Tetrahydroxy-tetrahydro-2H-pyran-2-carboxylate
(2R,3S,4S,5R)-3,4,5,6-tetrahydroxyoxane-2-carboxylate
(2R)-2-azaniumyl-3-(prop-2-enyldisulfanyl)propanoate
(2S,3S,4S,5S)-3,4,5,6-tetrahydroxyoxane-2-carboxylate
(1-Methyl-4-oxo-2-imidazolidinylidene)phosphoramidic acid
Cremeomycin(1-)
A monocarboxylic acid anion that is the conjugate base of cremeomycin resulting from the deprotonation of the carboxy group; major species at pH 7.3.
(2R)-2-acetamido-3-[(R)-methylsulfinyl]propanoic acid
5,6-dihydroxyindole-2-carboxylic acid
A dihydroxyindole that is indole-2-carboxylic acid substituted by hydroxy groups at positions 5 and 6.
N-carboxy-L-methionine
A non-proteinogenic L-alpha-amino acid that is L-methionine in which one of the hydrogens attached to the amino group bas been replaced by a carboxy group.
D-galactopyranuronate
A carbohydrate acid anion that is the conjugate base of D-galactopyranuronic acid, obtained by deprotonation of the carboxy group.
D-glucopyranuronate
A carbohydrate acid anion that is the conjugate base of D-glucopyranuronic acid.
3-Dehydro-L-gulonate
The conjugate base of 3-dehydro-L-gulonic acid; major species at pH 7.3.
3,4,5,8-quinolinetetrol
A hydroxyquinoline that is quinoline substituted by hydroxy groups at positions 3, 4, 5, and 8.
