Exact Mass: 143.0531
Exact Mass Matches: 143.0531
Found 500 metabolites which its exact mass value is equals to given mass value 143.0531,
within given mass tolerance error 0.05 dalton. Try search metabolite list with more accurate mass tolerance error
0.01 dalton.
5-(2-Hydroxyethyl)-4-methylthiazole
5-(2-hydroxyethyl)-4-methylthiazole, also known as 4-methyl-5-thiazolethanol or 4-methyl-5-(β-hydroxyethyl)thiazole, is a member of the class of compounds known as 4,5-disubstituted thiazoles. 4,5-disubstituted thiazoles are compounds containing a thiazole ring substituted at positions 4 and 5 only. 5-(2-hydroxyethyl)-4-methylthiazole is slightly soluble (in water) and an extremely weak acidic compound (based on its pKa). 5-(2-hydroxyethyl)-4-methylthiazole is a cooked beef juice, fatty, and sulfur tasting compound and can be found in a number of food items such as nuts, cereals and cereal products, alcoholic beverages, and mushrooms, which makes 5-(2-hydroxyethyl)-4-methylthiazole a potential biomarker for the consumption of these food products. 5-(2-hydroxyethyl)-4-methylthiazole can be found primarily in feces. 5-(2-hydroxyethyl)-4-methylthiazole exists in all living species, ranging from bacteria to humans. 5-(2-Hydroxyethyl)-4-methylthiazole, also known as 4-methyl-5-(2-hydroxyethyl)-thiazole or 4-methyl-5-thiazolethanol, belongs to the class of organic compounds known as 4,5-disubstituted thiazoles. 4,5-disubstituted thiazoles are compounds containing a thiazole ring substituted at positions 4 and 5 only. 5-(2-Hydroxyethyl)-4-methylthiazole exists in all living species, ranging from bacteria to humans. 5-(2-Hydroxyethyl)-4-methylthiazole is a sulfur tasting compound. 5-(2-Hydroxyethyl)-4-methylthiazole has been detected, but not quantified, in several different foods, such as kohlrabis, red bell peppers, citrus, avocado, and black-eyed pea. This could make 5-(2-hydroxyethyl)-4-methylthiazole a potential biomarker for the consumption of these foods. A 1,3-thiazole that is thiazole substituted by a methyl group at position 4 and a 2-hydroxyethyl group at position 5. Acquisition and generation of the data is financially supported in part by CREST/JST. KEIO_ID M013
Stachydrine
Proline betaine is an osmoprotective compound found in urine. It is thought to serve an osmoprotective role for the kidney. Proline betaine is a glycine betaine analogue found in many citrus foods. Elevated levels of proline betaine in human urine are found after the consumption of citrus fruits and juices (PMID: 18060588). Proline betaine is a biomarker for the consumption of citrus fruits. Alkaloid from Citrus spp Medicago sativa and Stachys subspecies(alfalfa). L-Stachydrine or also called proline betaine is a biomarker for the consumption of citrus fruits. L-Stachydrine is found in many foods, some of which are capers, pulses, lemon, and alfalfa. Proline betaine, also known as stachydrine, belongs to the class of organic compounds known as proline and derivatives. Proline and derivatives 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 betaine exists in all living organisms, ranging from bacteria to humans. Proline betaine is found, on average, in the highest concentration within capers (Capparis spinosa). Proline betaine has also been detected, but not quantified in, several different foods, such as soy beans (Glycine max), crosnes (Stachys affinis), domestic pigs (Sus scrofa domestica), limes (Citrus aurantiifolia), and triticales (X Triticosecale rimpaui). This could make proline betaine a potential biomarker for the consumption of these foods. Proline betaine is a secondary metabolite. Secondary metabolites are metabolically or physiologically non-essential metabolites that may serve a role as defense or signalling molecules. In some cases they are simply molecules that arise from the incomplete metabolism of other secondary metabolites. Based on a literature review a significant number of articles have been published on Proline betaine. Stachydrine is a major constituent of Chinese herb leonurus heterophyllus sweet used to promote blood circulation and dispel blood stasis. Stachydrine can inhibit the NF-κB signal pathway. Stachydrine is a major constituent of Chinese herb leonurus heterophyllus sweet used to promote blood circulation and dispel blood stasis. Stachydrine can inhibit the NF-κB signal pathway.
1-Naphthylamine
CONFIDENCE standard compound; INTERNAL_ID 8002 D009676 - Noxae > D002273 - Carcinogens
2-Aminonaphthalene
CONFIDENCE standard compound; INTERNAL_ID 516; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 6383; ORIGINAL_PRECURSOR_SCAN_NO 6382 CONFIDENCE standard compound; INTERNAL_ID 516; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 6382; ORIGINAL_PRECURSOR_SCAN_NO 6380 CONFIDENCE standard compound; INTERNAL_ID 516; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 6375; ORIGINAL_PRECURSOR_SCAN_NO 6374 CONFIDENCE standard compound; INTERNAL_ID 516; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 6368; ORIGINAL_PRECURSOR_SCAN_NO 6366 CONFIDENCE standard compound; INTERNAL_ID 516; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 6328; ORIGINAL_PRECURSOR_SCAN_NO 6323 CONFIDENCE standard compound; INTERNAL_ID 516; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 6403; ORIGINAL_PRECURSOR_SCAN_NO 6398 2-aminonaphthalene belongs to the family of Naphthalenes. These are compounds containing a naphthalene moiety, which consists of two fused benzene rings. D009676 - Noxae > D002273 - Carcinogens
6-Methylquinoline
6-Methylquinoline is found in tea. 6-Methylquinoline is a flavouring ingredient. Flavouring ingredient. 6-Methylquinoline is found in tea.
3beta,6beta-Dihydroxynortropane
(3S,6R)-8-Azabicyclo[3.2.1]octane-3,6-diol is found in fruits. (3S,6R)-8-Azabicyclo[3.2.1]octane-3,6-diol is an alkaloid from the fruit of Morus alba (white mulberry). Alkaloid from the fruit of Morus alba (white mulberry). 3beta,6beta-Dihydroxynortropane is found in fruits.
(-)-5-(2-Propenyl)-2-oxazolidinethione
(-)-5-(2-Propenyl)-2-oxazolidinethione is found in brassicas. (-)-5-(2-Propenyl)-2-oxazolidinethione is isolated from rape (Brassica napus) leaves and stems. Isolated from rape (Brassica napus) leaves and stems. (-)-5-(2-Propenyl)-2-oxazolidinethione is found in brassicas.
L-2-Amino-3-methylenehexanoic acid
L-2-Amino-3-methylenehexanoic acid is found in mushrooms. L-2-Amino-3-methylenehexanoic acid is found in carpophores of Amanita vaginata (grisette
Raphanusamide
Raphanusamide is found in brassicas. Raphanusamide is isolated from Japanese radish Raphanus sativus. Isolated from Japanese radish Raphanus sativus. Raphanusamide is found in brassicas.
Quinaldine
Quinaldine or 2-methylquinoline is a simple derivative of a heterocyclic compound quinoline.
Vinylacetylglycine
Vinylacetylglycine 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. Vinylacetylglycine is a human metabolite that had been identified in a GC/MS urine screen. Increased amounts of this metabolite in the urine has been linked to a metabolomic disorder termed Isovaleric acidemia. (Gas-Chromatographic Method of Analysis for Urinary Organic Acids. I. Retention indices of 155 metaboically Important Compounds; Kay Tanaka, David G. Hine, Agnes West-Dull, and Theodore B. Lynn.). Vinylacetylglycine 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:
Trimethadione
Trimethadione is only found in individuals that have used or taken this drug. It is an anticonvulsant effective in absence seizures, but generally reserved for refractory cases because of its toxicity. (From AMA Drug Evaluations Annual, 1994, p378)Trimethadione reduces T-type calcium currents in thalamic neurons, including thalamic relay neurons. It does so via the inhibition of voltage dependent T-type calcium channels. This raises the threshold for repetitive activity in the thalamus, and inhibits corticothalamic transmission. Thus, the abnormal thalamocortical rhythmicity, which is thought to underlie the 3-Hz spike-and-wave discharge seen on electroencephalogram(EEG) with absence seizures, is dampened. N - Nervous system > N03 - Antiepileptics > N03A - Antiepileptics > N03AC - Oxazolidine derivatives C78272 - Agent Affecting Nervous System > C264 - Anticonvulsant Agent D002491 - Central Nervous System Agents > D000927 - Anticonvulsants
2-Propionyl-2-thiazoline
2-Propionyl-2-thiazoline is used as a food additive [EAFUS] ("EAFUS: Everything Added to Food in the United States. [http://www.eafus.com/]")
5-Acetyl-2,3-dihydro-1,4-thiazine
5-Acetyl-2,3-dihydro-1,4-thiazine is formed by thermal treatment of cysteine and ribose mixtures Formed by thermal treatment of cysteine and ribose mixtures.
2-Ethyl-2,5-dihydro-4,5-dimethylthiazole
2-Ethyl-2,5-dihydro-4,5-dimethylthiazole is maillard produced in foods. 2-Ethyl-2,5-dihydro-4,5-dimethylthiazole is a flavouring agent for meats and soups, doubtless as a mixture of cis- and trans-forms. Maillard production in foods. Flavouring agent for meats and soups, doubtless as a mixture of cis- and trans-forms
1-Isothiocyanatohexane
1-Isothiocyanatohexane is found in brassicas. 1-Isothiocyanatohexane is isolated from radish (Raphanus sativus) and other crucifers. Isolated from radish (Raphanus sativus) and other crucifers. 1-Isothiocyanatohexane is found in brassicas.
1-Isothiocyanato-4-methylpentane
1-Isothiocyanato-4-methylpentane is found in root vegetables. 1-Isothiocyanato-4-methylpentane is isolated from radish (Raphanus sativus). Isolated from radish (Raphanus sativus). 1-Isothiocyanato-4-methylpentane is found in root vegetables.
5-ethyl-5-methyl-2,4-oxazolidinedione
5-ethyl-5-methyl-2,4-oxazolidinedione is a metabolite of paramethadione. Paramethadione is an anticonvulsant in the oxazolidinedione class. It is associated with fetal trimethadione syndrome, which is also known as paramethadione syndrome. (Wikipedia)
6-oxopiperidine-2-carboxylate
6-Oxopiperidine-2-carboxylic acid, also known as 6-Oxo-pipecolinic acid, or 6-Oxo-piperidine-2-carboxylic acid, is associated with penicillin V in the production on Penicillium chrysogenum fermentations. Analysis of a 13C NMR spectrum of a concentrated broth from Penicillium chrysogenum fermentation revealed the presence of penicillin V and 6-oxo-piperidine-2-carboxylic acid(1) as the principal constituents. The latter lactam, identical to an authentic sample prepared by the cyclization of alpha-aminoadipic acid was present to the extent of 28 mol\\% of penicillin V. The lactam isolated form the broth was nearly racemic, having a slight excess of the L-isomer. This isolation provides further evidence regarding the biosynthetic precursors of the hydrophobic penicillins. (PMID: 6788737
Stachydrine
L-proline betaine is an amino acid betaine that is L-proline zwitterion in which both of the hydrogens attached to the nitrogen are replaced by methyl groups. It has a role as a food component, a plant metabolite and a human blood serum metabolite. It is a N-methyl-L-alpha-amino acid, an alkaloid and an amino-acid betaine. It is functionally related to a L-prolinium. It is a conjugate base of a N,N-dimethyl-L-prolinium. It is an enantiomer of a D-proline betaine. Stachydrine is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). Stachydrine is a natural product found in Teucrium polium, Halopithys incurva, and other organisms with data available. Proline betaine is an osmoprotective compound found in urine. It is thought to serve an osmoprotective role for the kidney. Proline betaine is a glycine betaine analogue found in many citrus foods. Elevated levels of proline betaine in human urine are found after the consumption of citrus fruits and juices (PMID: 18060588). Proline betaine is a biomarker for the consumption of citrus fruits. Alkaloid from Citrus spp Medicago sativa and Stachys subspecies(alfalfa). L-Stachydrine or also called proline betaine is a biomarker for the consumption of citrus fruits. L-Stachydrine is found in many foods, some of which are capers, pulses, lemon, and alfalfa. An amino acid betaine that is L-proline zwitterion in which both of the hydrogens attached to the nitrogen are replaced by methyl groups. Stachydrine is a major constituent of Chinese herb leonurus heterophyllus sweet used to promote blood circulation and dispel blood stasis. Stachydrine can inhibit the NF-κB signal pathway. Stachydrine is a major constituent of Chinese herb leonurus heterophyllus sweet used to promote blood circulation and dispel blood stasis. Stachydrine can inhibit the NF-κB signal pathway.
(1S,4R)-1,4-dihydroxy-2-cyclopentene-1-carboxamide|rel-(1S,4R)-1,4-dihdyroxy-2-cyclopentenecarboxamide
(2S,3R)-2-Amino-3-hydroxy-4-hexynoic acid|2-Amino-3-hydroxy-4-hexynoic acid|L-threo-2-Amino-3-hydroxyhex-4-insaeure
6-(methylsulfanyl)hexanenitrile|6-(methylthio)-hexanenitrile|6-(methylthio)hexanenitrile|6-Methylmercapto-capronitril
1,2,3,6-Tetrahydro-3-hydroxy-2-pyridinecarboxylic acid
3-Methylisoquinoline
An isoquinoline substituted by a methyl group at position 3.
1-NAPHTHYLAMINE
A naphthylamine that is naphthalene substituted by an amino group at position 1. D009676 - Noxae > D002273 - Carcinogens
Trimethadione
N - Nervous system > N03 - Antiepileptics > N03A - Antiepileptics > N03AC - Oxazolidine derivatives C78272 - Agent Affecting Nervous System > C264 - Anticonvulsant Agent D002491 - Central Nervous System Agents > D000927 - Anticonvulsants
1H-Imidazole-4-carboxylicacid,4-amino-4,5-dihydro-5-oxo-(9CI)
1H-1,2,3-Triazole-5-carboxylicacid,1-hydroxy-,methylester(9CI)
1H-Imidazole-2-carboxaldehyde,1-hydroxy-, oxime, 3-oxide
N-methyl-1-(4-methyl-1,2,3-thiadiazol-5-yl)methanamine
methyl 2-methyl-4,5-dihydro-1,3-oxazole-4-carboxylate
3H-1,2,4-Triazole-3-thione,1,2-dihydro-5-propyl-(9CI)
(3-OXO-2-PENTYL-CYCLOPENTYL)-ACETICACIDMETHYLESTER
(5-OXO-4,5-DIHYDRO-1H-1,2,4-TRIAZOL-3-YL)ACETIC ACID
[5-(METHOXYMETHYL)-1,2,4-OXADIAZOL-3-YL]METHYLAMINE
1H-1,2,3-Triazole-4-carboxylicacid,4,5-dihydro-1-methyl-,methylester(9CI)
Cyclopropanecarboxylic acid, 2-[(methylamino)carbonyl]- (9CI)
[3-(methoxymethyl)-1,2,4-oxadiazol-5-yl]methanamine
Ethyl 5-oxo-4,5-dihydro-1H-[1,2,4]triazole-3-carboxylate
(S)-4-METHYL-2,2,2-TRIPHENYL-2LAMBDA5-[1,3,2]DIOXAPHOSPHOLANE
4-AMINO-N-HYDROXY-1,2,5-OXADIAZOLE-3-CARBOXIMIDAMIDE
1H-Imidazole-2-carboxamide,1-hydroxy-,3-oxide(9CI)
1,2,4-oxadiazole-3-carboxamide, 5-(hydroxymethyl)-
1H-Imidazole-5-carboxylicacid,2-amino-4,5-dihydro-1-methyl-(9CI)
4-Isothioureidobutyronitrile
C274 - Antineoplastic Agent > C129839 - Apoptotic Pathway-targeting Antineoplastic Agent
5-Ethyl-5-methyl-1,3-oxazolidine-2,4-dione
An oxazolidinone that is 1,3-oxazolidine-2,4-dione substituted by a methyl and ethyl group at position 5. It is a metabolite of paramethadione.
5-(2-Hydroxyethyl)-4-methylthiazole
A 1,3-thiazole that is thiazole substituted by a methyl group at position 4 and a 2-hydroxyethyl group at position 5.
6-ketopiperidine-2-carboxylic acid
A delta-lactam that is piperidine-2-carboxylic acid substituted at position 6 by an oxo group.
