Exact Mass: 183.0545
Exact Mass Matches: 183.0545
Found 500 metabolites which its exact mass value is equals to given mass value 183.0545,
within given mass tolerance error 0.05 dalton. Try search metabolite list with more accurate mass tolerance error
0.01 dalton.
Pyridoxate
4-Pyridoxic acid is a member of the class of compounds known as methylpyridines. More specifically it is a 2-methylpyridine derivative substituted by a hydroxy group at C-3, a carboxy group at C-4, and a hydroxymethyl group at C-5. 4-Pyridoxic acid is the catabolic product of vitamin B6 (also known as pyridoxine, pyridoxal and pyradoxamine) and is excreted in the urine. Urinary levels of 4-pyridoxic acid are lower in females than in males and will be reduced even further in persons with a riboflavin deficiency. 4-Pyridoxic acid is formed by the action of aldehyde oxidase I (an endogenous enzyme) and by microbial enzymes (pyridoxal 4-dehydrogenase), an NAD-dependent aldehyde dehydrogenase. 4-pyridoxic acid can be further broken down by the gut microflora via the enzyme known as 4-pyridoxic acid dehydrogenase. This enzyme catalyzes the four-electron oxidation of 4-pyridoxic acid to 3-hydroxy-2-methylpyridine-4,5-dicarboxylate, using nicotinamide adenine dinucleotide (NAD) as a cofactor. 4-Pyridoxic acid is the catabolic product of vitamin B6 (also known as pyridoxine, pyridoxal and pyradoxamine) which is excreted in the urine. Urinary levels of 4-pyridoxic acid are lower in females than in males and will be reduced in persons with riboflavin deficiency. 4-Pyridoxic acid is formed by the action of aldehyde oxidase I (an endogenous enzyme) and by microbial enzymes (pyridoxal 4-dehydrogenase), an NAD-dependent aldehyde dehydrogenase. 4-pyridoxic acid can be further broken down by the gut microflora via 4-pyridoxic acid dehydrogenase. This enzyme catalyzes the four electron oxidation of 4-pyridoxic acid to 3-hydroxy-2-methylpyridine-4,5-dicarboxylate, using nicotinamide adenine dinucleotide as a cofactor. [HMDB] Vitamin B6 is one of the B vitamins, and thus an essential nutrient.[1][2][3][4] The term refers to a group of six chemically similar compounds, i.e., "vitamers", which can be interconverted in biological systems. Its active form, pyridoxal 5′-phosphate, serves as a coenzyme in more than 140 enzyme reactions in amino acid, glucose, and lipid metabolism.[1][2][3] Plants synthesize pyridoxine as a means of protection from the UV-B radiation found in sunlight[5] and for the role it plays in the synthesis of chlorophyll.[6] Animals cannot synthesize any of the various forms of the vitamin, and hence must obtain it via diet, either of plants, or of other animals. There is some absorption of the vitamin produced by intestinal bacteria, but this is not sufficient to meet dietary needs. For adult humans, recommendations from various countries' food regulatory agencies are in the range of 1.0 to 2.0 milligrams (mg) per day. These same agencies also recognize ill effects from intakes that are too high, and so set safe upper limits, ranging from as low as 25 mg/day to as high as 100 mg/day depending on the country. Beef, pork, fowl and fish are generally good sources; dairy, eggs, mollusks and crustaceans also contain vitamin B6, but at lower levels. There is enough in a wide variety of plant foods so that a vegetarian or vegan diet does not put consumers at risk for deficiency.[7] Dietary deficiency is rare. Classic clinical symptoms include rash and inflammation around the mouth and eyes, plus neurological effects that include drowsiness and peripheral neuropathy affecting sensory and motor nerves in the hands and feet. In addition to dietary shortfall, deficiency can be the result of anti-vitamin drugs. There are also rare genetic defects that can trigger vitamin B6 deficiency-dependent epileptic seizures in infants. These are responsive to pyridoxal 5'-phosphate therapy.[8] 4-Pyridoxic acid is a catabolic product of vitamin B6 which is excreted in the urine.
(RS)-3,5-DHPG
D018377 - Neurotransmitter Agents > D018683 - Excitatory Amino Acid Agents > D018691 - Excitatory Amino Acid Antagonists D018377 - Neurotransmitter Agents > D018683 - Excitatory Amino Acid Agents > D018690 - Excitatory Amino Acid Agonists DHPG ((RS)-3,5-DHPG) is an amino acid, which acts as a selective and potent agonist of group I mGluR (mGluR 1 and mGluR 5), shows no effect on Group II or Group III mGluRs[1]. DHPG ((RS)-3,5-DHPG) is also an effective antagonist of mGluRs linked to phospholipase D[2].
2-Amino-a-carboline
2-Amino-a-carboline is found in cooked foods as pyrolysis produced of tryptophan. Found in cooked foods as pyrol. production of tryptophan. CONFIDENCE standard compound; INTERNAL_ID 8
3-Carboxy-4-methoxy-N-methyl-2-pyridone
2,6-Diamino-4-hydroxy-5-N-methylformamidopyrimidine
2,6-Diamino-4-hydroxy-5-N-methylformamidopyrimidine is a methylated derivative of 2,6-Diamino-4-hydroxy-5-N-formamidopyrimidine or FapyGua. It is produced by DNA-formamidopyrimidine glycosylase (EC 3.2.2.23). This enzyme catalyzes the hydrolysis of DNA containing ring-opened 7-methylguanine residues, releasing 2,6-diamino-4-hydroxy-5-(N-methyl)formamidopyrimidine. More specifically, this enzyme catalyzes the removal of oxidized purine bases by cleaving the N-C1 glycosidic bond between the oxidized purine and the deoxyribose sugar. The reaction involves the formation of a covalent enzyme substrate intermediate. Release of the enzyme and free base by a beta-elimination or a beta, gamma-elimination mechanism results in the cleavage of the DNA backbone 3 of the apurinic (AP) site. The presence of this compound in urine is indicative of oxidative damage to DNA (oxidized purine base lesions) [HMDB] 2,6-Diamino-4-hydroxy-5-N-methylformamidopyrimidine is a methylated derivative of 2,6-Diamino-4-hydroxy-5-N-formamidopyrimidine or FapyGua. It is produced by DNA-formamidopyrimidine glycosylase (EC 3.2.2.23). This enzyme catalyzes the hydrolysis of DNA containing ring-opened 7-methylguanine residues, releasing 2,6-diamino-4-hydroxy-5-(N-methyl)formamidopyrimidine. More specifically, this enzyme catalyzes the removal of oxidized purine bases by cleaving the N-C1 glycosidic bond between the oxidized purine and the deoxyribose sugar. The reaction involves the formation of a covalent enzyme substrate intermediate. Release of the enzyme and free base by a beta-elimination or a beta, gamma-elimination mechanism results in the cleavage of the DNA backbone 3 of the apurinic (AP) site. The presence of this compound in urine is indicative of oxidative damage to DNA (oxidized purine base lesions).
4-Amino-2-hydroxylamino-6-nitrotoluene
A member of the class of amino-nitrotoluenes that is 4-amino-6-nitrotoluene bearing an additional hydroxylamino group at position 2.
Choline sulfate
D057847 - Lipid Regulating Agents > D000960 - Hypolipidemic Agents > D008082 - Lipotropic Agents D002491 - Central Nervous System Agents > D018697 - Nootropic Agents D009676 - Noxae > D000963 - Antimetabolites D005765 - Gastrointestinal Agents
[(1R)-1-hydroxy-2-(trimethylamino)ethyl]phosphonate
3,5-Dihydroxyphenylglycine
D018377 - Neurotransmitter Agents > D018683 - Excitatory Amino Acid Agents > D018691 - Excitatory Amino Acid Antagonists D018377 - Neurotransmitter Agents > D018683 - Excitatory Amino Acid Agents > D018690 - Excitatory Amino Acid Agonists DHPG ((RS)-3,5-DHPG) is an amino acid, which acts as a selective and potent agonist of group I mGluR (mGluR 1 and mGluR 5), shows no effect on Group II or Group III mGluRs[1]. DHPG ((RS)-3,5-DHPG) is also an effective antagonist of mGluRs linked to phospholipase D[2].
Fosmidomycin
D000890 - Anti-Infective Agents > D000900 - Anti-Bacterial Agents C254 - Anti-Infective Agent > C258 - Antibiotic
triazolobenzodiazepine
4-Pyridoxic acid
4-Pyridoxic acid is a catabolic product of vitamin B6 which is excreted in the urine.
Histamine dihydrochloride
L - Antineoplastic and immunomodulating agents > L03 - Immunostimulants > L03A - Immunostimulants D018377 - Neurotransmitter Agents > D018494 - Histamine Agents > D017442 - Histamine Agonists C308 - Immunotherapeutic Agent > C2139 - Immunostimulant Histamine dihydrochloride is an endogenous metabolite. Histamine dihydrochloride is an endogenous metabolite.
(+)-(R)-2-methyl-7,8-dihydropyrano[4,3-b][1,4]oxazine-3,5-(2H,4H)-dione
3-(Acetylamino)-5-hydroxy-7-oxabicyclo[4.1.0]hepta-3-ene-2-one
4-Pyridoxate
4-Pyridoxic acid is a catabolic product of vitamin B6 which is excreted in the urine.
4-Pyridoxic acid
A methylpyridine that is 2-methylpyridine substituted by a hydroxy group at C-3, a carboxy group at C-4, and a hydroxymethyl group at C-5. It is the catabolic product of vitamin B6 and is excreted in the urine. 4-Pyridoxic acid is a catabolic product of vitamin B6 which is excreted in the urine.
N-Acetyl-3-chloro-4-methylaniline
CONFIDENCE standard compound; INTERNAL_ID 410; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4312; ORIGINAL_PRECURSOR_SCAN_NO 4309 ORIGINAL_ACQUISITION_NO 4312; CONFIDENCE standard compound; INTERNAL_ID 410; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_PRECURSOR_SCAN_NO 4309 CONFIDENCE standard compound; INTERNAL_ID 410; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4341; ORIGINAL_PRECURSOR_SCAN_NO 4338 CONFIDENCE standard compound; INTERNAL_ID 410; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4316; ORIGINAL_PRECURSOR_SCAN_NO 4312 INTERNAL_ID 410; CONFIDENCE standard compound; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4389; ORIGINAL_PRECURSOR_SCAN_NO 4387 CONFIDENCE standard compound; INTERNAL_ID 410; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4389; ORIGINAL_PRECURSOR_SCAN_NO 4387 CONFIDENCE standard compound; INTERNAL_ID 410; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4314; ORIGINAL_PRECURSOR_SCAN_NO 4311 CONFIDENCE standard compound; INTERNAL_ID 410; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 8630; ORIGINAL_PRECURSOR_SCAN_NO 8626 CONFIDENCE standard compound; INTERNAL_ID 410; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 8655; ORIGINAL_PRECURSOR_SCAN_NO 8651 CONFIDENCE standard compound; INTERNAL_ID 410; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 8662; ORIGINAL_PRECURSOR_SCAN_NO 8659 CONFIDENCE standard compound; INTERNAL_ID 410; DATASET 20200303_ENTACT_RP_MIX505; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 8631; ORIGINAL_PRECURSOR_SCAN_NO 8627
Methyl 2-cyano-2-(3-tetrahydrothienylidene) acetate
3-chloro-9-methyl-2,4,8,9-tetrazabicyclo[4.3.0]nona-1,3,5,7-tetraen-5-amine
2-(carboxymethyl)-1-methyl-pyrrole-3-carboxylic acid
Pentanoic acid,5-amino-2-hydrazinyl-, hydrochloride (1:1), (2S)-
(1H-Benzo[d]imidazol-2-yl)methanamine hydrochloride
N-((1,2,3,6-tetrahydro-2,6-dioxopyrimidin-4-yl)Methyl)acetamide
6-METHYL-2-VINYL-1,3,6,2-DIOXAZABOROCANE-4,8-DIONE
2-chloro-4-methyl-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine
L-AP4
A non-proteinogenc L-alpha-amino acid that is L-alpha-aminobutyric acid in which one of the hydrogens of the terminal methyl group has been replaced by a dihydroxy(oxido)-lambda(5)-phosphanyl group. It is a potent and selective agonist for the group III metabotropic glutamate receptors (mGluR4/6/7/8).
4-CHLORO-2-METHYL-5,6,7,8-TETRAHYDRO-PYRIDO[4,3-D]PYRIMIDINE
(1S,2R,3S,5S)-3-Amino-5-(hydroxymethyl)-1,2-cyclopentanediol hydr ochloride (1:1)
4-methylamino-2-methylsulfanyl-pyrimidine-5-carbaldehyde
(1-METHYL-1H-IMIDAZOL-2-YL)METHANAMINE DIHYDROCHLORIDE
2-[(CARBOXYMETHYL)AMINO]PROPANOIC ACID HYDROCHLORIDE
cis-2-amino-1-cyclopentanecarboxylic acid hydrochloride hemihydrate, 99
N-acetyl-2-methyl-5-oxo-1,4-dihydroimidazole-4-carboxamide
1H-Imidazole-2-carboxylic acid,4-(acetylamino)-1-methyl-
2-Methylimidazo[1,2-a]pyridin-8-ylamine hydrochloride
2,3-Dihydro-3-methyl-1,2-benzisothiazole 1,1-dioxide
4-Amino-1,3-dimethyl-2,6-dioxopyrimidine-5-carbaldehyde
trans-4-Fluoro-L-proline methyl ester hydrochloride
4-AMINO-6-METHYL-2-(METHYLSULFANYL)PYRIMIDINE-5-CARBALDEHYDE
Benzeneacetic acid, 4-amino-3-fluoro-, Methyl ester
2-Methyl-1H-benzo[d]imidazol-5-amine hydrochloride
3-chloro-N-methyl-2,4,8,9-tetrazabicyclo[4.3.0]nona-2,4,7,10-tetraen-5-amine
(1R,2S,3R,4R)-2,3-DIHYDROXY-4-(HYDROXYMETHYL)-1-AMINOCYCLOPENTANE HYDROCHLORIDE
3-Pyridinecarboxylic acid, 1,2-dihydro-4-hydroxy-1-methyl-2-oxo-, methyl ester
4-Amino-2-dimethylamino-6-hydroxy-5-nitrosopyrimidine
4-Fluoro-4-piperidinecarboxylic Acid Hydrochloride
Betazole Hydrochloride
D018377 - Neurotransmitter Agents > D018494 - Histamine Agents > D017442 - Histamine Agonists D005765 - Gastrointestinal Agents
2-(Difluoromethyl)-1H-pyrrolo[2,3-b]pyridin-5-amine
2-chloro-N-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-amine(SALTDATA: FREE)
4(1H)-Pteridinone, 2-amino-4a,5,6,7-tetrahydro-4a-hydroxy-, (S)
4,5,6,7-Tetrahydrothieno[3,2-c]pyridine-2-carboxylic acid
L-Glutamic acid hydrochloride
A - Alimentary tract and metabolism > A09 - Digestives, incl. enzymes > A09A - Digestives, incl. enzymes > A09AB - Acid preparations Dietary supplement, nutrient, flavouring agent and enhancer C78276 - Agent Affecting Digestive System or Metabolism
1-(1H-imidazol-2-yl)-N-methylmethanamine,dihydrochloride
1,3-DIMETHYL-2,4-DIOXO-1,2,3,4-TETRAHYDROPYRIMIDINE-5-CARBOXAMIDE
3-[(5-amino-3-methyl-1,2-oxazol-4-yl)sulfanyl]propanenitrile
(S)-3,5-DHPG
A glycine derivative that is L-alpha-phenylglycine substituted at positions 3 and 5 on the phenyl ring by hydroxy groups. (S)-3,5-DHPG is a weak, but selective group I metabotropic glutamate receptors (mGluRs) agonist with Ki values of 0.9 μM and 3.9 μM for mGluR1a and mGluR5a, respectively[1]. (S)-3,5-DHPG exhibits anxiolytic activity in rats subjected to hypoxia[2]. DHPG ((RS)-3,5-DHPG) is an amino acid, which acts as a selective and potent agonist of group I mGluR (mGluR 1 and mGluR 5), shows no effect on Group II or Group III mGluRs[1]. DHPG ((RS)-3,5-DHPG) is also an effective antagonist of mGluRs linked to phospholipase D[2].
(1H-PYRROLO[2,3-B]PYRIDIN-4-YL)METHANAMINE HYDROCHLORIDE
1-(2,2-Difluoroethyl)-1H-pyrazol-4-amine hydrochloride
Benzeneacetic acid, a-amino-2-fluoro-a-methyl-, (aS)-
7-chloro-5-methyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-amine
C-Imidazo[1,2-a]pyridin-6-yl-methylamine hydrochloride
Aceticacid, 2-[(2-furanylmethyl)amino]-2-oxo-, hydrazide
2-dimethylamino-6-oxo-3H-pyrimidine-4-carboxylic acid
1H-Inden-1-one,2-amino-2,3-dihydro-, hydrochloride (1:1)
3-Fluorophenylalanine
COVID info from PDB, Protein Data Bank Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS
3-ISOPROPYL[1,2,4]TRIAZOLO[3,4-B][1,3,4]THIADIAZOL-6-AMINE
7-Amino-1,3,6,8-tetraazaspiro[4.4]non-6-ene-2,4,9-trione
3-(cis-5,6-Dihydroxycyclohexa-1,3-dien-1-yl)propanoate
Medinal
D002491 - Central Nervous System Agents > D002492 - Central Nervous System Depressants > D006993 - Hypnotics and Sedatives D018377 - Neurotransmitter Agents > D018682 - GABA Agents > D018757 - GABA Modulators
3-[(1R,4R)-4-hydroxycyclohex-2-en-1-yl]-2-oxopropanoate
3-[(1S,4R)-4-hydroxycyclohex-2-en-1-yl]pyruvate
A tetrahydro-4-hydroxyphenylpyruvate obtained by deprotonation of the carboxy group of 3-[(1S,4R)-4-hydroxycyclohex-2-en-1-yl]pyruvic acid; major species at pH 7.3.
1-[(6E)-5-hydroxy-1-methyl-1,6-dihydro-1,2,4-triazin-6-ylidene]-3-methylurea
1-[(E)-furan-2-ylmethylideneamino]-3-methylthiourea
3-[(5S,6R)-5,6-dihydroxycyclohexa-1,3-dienyl]propanoate
Choline sulfate
D057847 - Lipid Regulating Agents > D000960 - Hypolipidemic Agents > D008082 - Lipotropic Agents D002491 - Central Nervous System Agents > D018697 - Nootropic Agents D009676 - Noxae > D000963 - Antimetabolites D005765 - Gastrointestinal Agents
N-(2,4-diamino-6-hydroxypyrimidin-5-yl)-N-methylformamide
4-Methoxy-1-methyl-2-oxo-1,2-dihydropyridine-3-carboxylic acid
fosmidomycin
Propylphosphonic acid in which one of the hydrogens at position 3 is substituted by a formyl(hydroxy)amino group. An antibiotic obtained from Streptomyces lavendulae, it specifically inhibits DXP reductoisomerase (EC 1.1.1.267), a key enzyme in the non-mevalonate pathway of isoprenoid biosynthesis. D000890 - Anti-Infective Agents > D000900 - Anti-Bacterial Agents C254 - Anti-Infective Agent > C258 - Antibiotic
3-[(1R,4R)-4-hydroxycyclohex-2-en-1-yl]pyruvate
A tetrahydro-4-hydroxyphenylpyruvate obtained by deprotonation of the carboxy group of 3-[(1R,4R)-4-hydroxycyclohex-2-en-1-yl]pyruvic acid; major species at pH 7.3.
2-Hydroxy-6-oxo-nona-2,4-dienoate
A hydroxy monocarboxylic acid anion obtained by deprotonation of the carboxy group of 2-hydroxy-6-oxonona-2,4-dienoic acid; major species at pH 7.3.
m-fluoro-L-phenylalanine
A phenylalanine derivative that is L-phenylalanine in which the hydrogen at position 3 on the benzene ring is replaced by a fluoro group.
5-Pyridoxic acid
A pyridinemonocarboxylic acid that is pyridine-3-carboxylic acid substituted by a hydroxy group at position 5, hydroxy methyl group at position 4 and a methyl group at position 6.
(S)-3,5-dihydroxyphenylglycine zwitterion
An amino acid zwitterion obtained by transfer of a proton from the carboxy to the amino group of (S)-3,5-dihydroxyphenylglycine.
4-fluorophenyl-L-alanine
A L-phenylalanine derivative that is L-phenylalanine in which the hydrogen at position 4 on the benzene ring is replaced by a fluoro group.
Phosphorylcholine
Phosphatidylcholine is the main phospholipid component in eukaryotic biofilms. Phosphatidylcholine exists in commensal or pathogenic bacteria associated with eukaryotes in prokaryotes. Phosphorylcholine exhibits a surprising range of immunomodulatory properties[1].
