Exact Mass: 256.12431300000003
Exact Mass Matches: 256.12431300000003
Found 201 metabolites which its exact mass value is equals to given mass value 256.12431300000003,
within given mass tolerance error 0.01 dalton. Try search metabolite list with more accurate mass tolerance error
0.001 dalton.
Ancymidol
C15H16N2O2 (256.12117159999997)
CONFIDENCE standard compound; INTERNAL_ID 526; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 8087; ORIGINAL_PRECURSOR_SCAN_NO 8085 CONFIDENCE standard compound; INTERNAL_ID 526; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 7994; ORIGINAL_PRECURSOR_SCAN_NO 7992 CONFIDENCE standard compound; INTERNAL_ID 526; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 8044; ORIGINAL_PRECURSOR_SCAN_NO 8040 CONFIDENCE standard compound; INTERNAL_ID 526; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 8083; ORIGINAL_PRECURSOR_SCAN_NO 8081 CONFIDENCE standard compound; INTERNAL_ID 526; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 8034; ORIGINAL_PRECURSOR_SCAN_NO 8033
(1,2-diphenylethenyl)benzene
D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006727 - Hormone Antagonists > D004965 - Estrogen Antagonists
7,12-Dimethylbenz[a]anthracene
7,12-Dimethylbenz[a]anthracene, also known as DMBA or 1,4-Dimethyl-2,3-benzphenanthrene, is classified as a phenanthrene or a Phenanthrene derivative. Phenanthrenes are polycyclic compounds containing a phenanthrene moiety, which is a tricyclic aromatic compound with three non-linearly fused benzene D009676 - Noxae > D002273 - Carcinogens
Decarbamoylsaxitoxin
D009676 - Noxae > D011042 - Poisons > D008978 - Mollusk Venoms D009676 - Noxae > D011042 - Poisons > D008387 - Marine Toxins Decarbamoylsaxitoxin is isolated from various shellfish. D009676 - Noxae > D011042 - Poisons > D014688 - Venoms Isolated from various shellfish
Albonoursin
C15H16N2O2 (256.12117159999997)
A member of the class of 2,5-diketopiperazines that is piperazine-2,5-dione in which the two hydrogen at position 3 and those at position 6 are replaced by benzylidene and isobutylidene groups (the 3Z,6Z-geoisomer).
(2S)-2-azanyl-4-[[(2R)-3-(1H-imidazol-4-yl)-1-oxidanyl-1-oxidanylidene-propan-2-yl]amino]butanoic acid
2-[4-(3-Hydroxypropyl)-2-methoxyphenoxy]-1,3-propanediol
2-[4-(3-Hydroxypropyl)-2-methoxyphenoxy]-1,3-propanediol is found in alcoholic beverages. 2-[4-(3-Hydroxypropyl)-2-methoxyphenoxy]-1,3-propanediol is a constituent of Vitis vinifera cv. Gewurztraminer. Constituent of Vitis vinifera cv. Gewurztraminer. 2-[4-(3-Hydroxypropyl)-2-methoxyphenoxy]-1,3-propanediol is found in alcoholic beverages.
1-Methoxy-1-(2,4,5-trimethoxyphenyl)-2-propanol
1-Methoxy-1-(2,4,5-trimethoxyphenyl)-2-propanol is found in herbs and spices. 1-Methoxy-1-(2,4,5-trimethoxyphenyl)-2-propanol is a constituent of Acorus calamus (sweet flag)
Threonylhistidine
Threonylhistidine is a dipeptide composed of threonine and histidine. It is an incomplete breakdown product of protein digestion or protein catabolism. Dipeptides are organic compounds containing a sequence of exactly two alpha-amino acids joined by a peptide bond. Some dipeptides are known to have physiological or cell-signalling effects although most are simply short-lived intermediates on their way to specific amino acid degradation pathways following further proteolysis.
2-(3-Carboxy-3-aminopropyl)-L-histidine
2-(3-Carboxy-3-aminopropyl)-L-histidine is an unusual amino acid that results from the post-translational modification of histidine in certain proteins. In particular, it is a post-translational derivative of histidine that exists in protein synthesis elongation factor 2 (EF2) at the site of diphtheria toxin-catalyzed ADP-ribosylation of elongation factor 2. It is a precursor for diphthamide. This compound is a substrate for the enzyme diphthine synthase (EC 2.1.1.98). This enzyme catalyzes the chemical reaction: S-adenosyl-L-methionine + 2-(3-carboxy-3-aminopropyl)-L-histidine = S-adenosyl-L-homocysteine + 2-[3-carboxy-3-(methylammonio)propyl]-L-histidine. [HMDB] 2-(3-Carboxy-3-aminopropyl)-L-histidine is an unusual amino acid that results from the post-translational modification of histidine in certain proteins. In particular, it is a post-translational derivative of histidine that exists in protein synthesis elongation factor 2 (EF2) at the site of diphtheria toxin-catalyzed ADP-ribosylation of elongation factor 2. It is a precursor for diphthamide. This compound is a substrate for the enzyme diphthine synthase (EC 2.1.1.98). This enzyme catalyzes the chemical reaction: S-adenosyl-L-methionine + 2-(3-carboxy-3-aminopropyl)-L-histidine = S-adenosyl-L-homocysteine + 2-[3-carboxy-3-(methylammonio)propyl]-L-histidine.
Histidylthreonine
Histidylthreonine is a dipeptide composed of histidine and threonine. It is an incomplete breakdown product of protein digestion or protein catabolism. Dipeptides are organic compounds containing a sequence of exactly two alpha-amino acids joined by a peptide bond. Some dipeptides are known to have physiological or cell-signalling effects although most are simply short-lived intermediates on their way to specific amino acid degradation pathways following further proteolysis.
1-(9H-Pyrido[3,4-b]indol-1-yl)-1,4-butanediol
C15H16N2O2 (256.12117159999997)
1-(9H-Pyrido[3,4-b]indol-1-yl)-1,4-butanediol is maillard produced from xylose and tryptophan. Maillard production from xylose and tryptophan
N-(4-Amino-5-methoxy-2-methylphenyl)benzamide
C15H16N2O2 (256.12117159999997)
Nafagrel
C15H16N2O2 (256.12117159999997)
C78275 - Agent Affecting Blood or Body Fluid > C1327 - Antiplatelet Agent D004791 - Enzyme Inhibitors
Quinolactacin B
C15H16N2O2 (256.12117159999997)
1-(2,4,5-Trimethoxyphenyl)-1-hydroxy-2-methoxypropane|2,2,4,5,-Tetra-Me ether-1-(2,4,5-Trihydroxyphenyl)-1,2-propanediol
(Z,S)-11-(2-oxopropylidene)-2,3,11,11a-tetrahydro-1H-benzo[e]pyrrolo-[1,2-a][1,4]diazepin-5(10H)-one|fuligocandin A
C15H16N2O2 (256.12117159999997)
1-Ethyl-4,8-dimethoxy-beta-carboline
C15H16N2O2 (256.12117159999997)
(S)-6-[(S)-1-Acetoxypentyl]-5,6-dihydro-4-methoxy-2H-pyran-2-one
(E)-3-benzylidenehexahydro-2-methylpyrrolo[1,2-a]pyrazine-1,4-dione
C15H16N2O2 (256.12117159999997)
6-methoxy-3-(1,2-dihydroxyethyl)-beta-carboline
C15H16N2O2 (256.12117159999997)
(2RS,4SR)-6-(3-hydroxy-4-methoxyphenyl)hexane-1,2,4-triol|debilitriol
THR-His
A dipeptide composed of L-threonine and L-histidine joined by a peptide linkage.
1-(1,4-Dihydroxybutyl)-9H-pyrido[3,4-b]indole
C15H16N2O2 (256.12117159999997)
2-[4-(3-hydroxypropyl)-2-methoxyphenoxy]propane-1,3-diol
ethyl 1,2,3,6-tetrahydroazepino[4,5-b]indole-5-carboxylate
C15H16N2O2 (256.12117159999997)
BENZYL 4-(AMINOMETHYL)PHENYLCARBAMATE
C15H16N2O2 (256.12117159999997)
(S)-1-[3-(TRIFLUOROMETHYL)PHENYL]ETHYLAMINE
C15H16N2O2 (256.12117159999997)
tert-Butyl 3-(cyanomethyl)-1H-indole-1-carboxylate
C15H16N2O2 (256.12117159999997)
4-(4-ISOPROPOXYPHENYL)PHENYLBORONIC AC&
C15H17BO3 (256.12706820000005)
4-(4-PROPOXYPHENYL)PHENYLBORONIC ACID
C15H17BO3 (256.12706820000005)
N-(3-AMINOMETHYL-PHENYL)-2-(4-HYDROXY-PHENYL)-ACETAMIDE
C15H16N2O2 (256.12117159999997)
5,5,5-Trifluoro-2-{[(1R)-1-phenylethyl]amino}pentanenitrile
4-(4-methylpiperazin-1-yl)quinazoline-6-carbaldehyde
6-(3-hydroxy-2,2-dimethylpropoxy)carbonylcyclohex-3-ene-1-carboxylic acid
(2S,4S)-1-(tert-Butoxycarbonyl)-4-azidopyrrolidine-2-carboxylic acid
2-Amino-7-benzyl-5,6,7,8-tetrahydro-3H-pyrido[3,4-d]pyrimidin-4-one
Ethoxazene
C78272 - Agent Affecting Nervous System > C241 - Analgesic Agent
[2,6-Dimethyl-4-(phenylmethoxy)phenyl]boronic acid
C15H17BO3 (256.12706820000005)
5-Methoxy-N,4-dimethyl-N-phenylnicotinamide
C15H16N2O2 (256.12117159999997)
N-(Trimethylsilyl)-4-[(trimethylsilyl)oxy]-1,3,5-triazin-2-amine
2-AMINO-N-(4-ETHOXY-PHENYL)-BENZAMIDE
C15H16N2O2 (256.12117159999997)
4-(2-(METHYL(PYRIDIN-2-YL)AMINO)ETHOXY)BENZALDEHYDE
C15H16N2O2 (256.12117159999997)
N-(4-Amino-2-methoxy-phenyl)-2-methyl-benzamide
C15H16N2O2 (256.12117159999997)
4-[(4-aminophenyl)diazenyl]-2-methoxy-5-methylaniline
POLY(ETHYLENE-CO-METHYL ACRYLATE-CO-GLYCIDYL METHACRYLATE)
3-Amino-2-(3,5-dimethylphenylamino)benzoic acid
C15H16N2O2 (256.12117159999997)
Prilocaine hydrochloride
D002491 - Central Nervous System Agents > D002492 - Central Nervous System Depressants > D000777 - Anesthetics D018373 - Peripheral Nervous System Agents > D018689 - Sensory System Agents C78272 - Agent Affecting Nervous System > C245 - Anesthetic Agent
Methanone,1,1-(1,2-diazenediyl)bis[1-(4-morpholinyl)-
Carbamic acid,N-[3-(phenylamino)phenyl]-, ethyl ester
C15H16N2O2 (256.12117159999997)
(3aR,4S,5R,6aS)-Hexahydro-4-(hydroxymethyl)-5-[(tetrahydro-2H-pyran-2-yl)oxy]-2H-cyclopenta[b]furan-2-one
TERT-BUTYL 7-(CYANOMETHYL)-1H-INDOLE-1-CARBOXYLATE
C15H16N2O2 (256.12117159999997)
(R)-1-[3-(TRIFLUOROMETHYL)PHENYL]ETHYLAMINE
C15H16N2O2 (256.12117159999997)
N-(4-Methoxyphenyl)-2-(methylamino)benzamide
C15H16N2O2 (256.12117159999997)
3-amino-4-benzylamine-benzoic acid methyl ester
C15H16N2O2 (256.12117159999997)
1,3-Dioxane, 5-butyl-2-(3,5-difluorophenyl)-, trans-
2-ETHYL-1,2,3,4-TETRAHYDRO-BENZO[B][1,6]NAPHTHYRIDINE-10-CARBOXYLIC ACID
C15H16N2O2 (256.12117159999997)
1H-Indazole-5-carboxamide,N-(1R,3R,4S)-1-azabicyclo[2.2.1]hept-3-yl-(9CI)
2-AMINO-5,6,7,8-TETRAHYDRO-6-(PHENYLMETHYL)PYRIDO[4,3-D]PYRIMIDIN-4(3H)-ONE
1H-Pyrrolo[2,3-c]pyridine-5-carboxamide,N-2-azabicyclo[2.2.1]hept-6-yl-(9CI)
3-(1,2,3,4-TETRAHYDRONAPHTHALEN-1-YL)-3H-IMIDAZOLE-4-CARBOXYLIC ACID METHYL ESTER
C15H16N2O2 (256.12117159999997)
DIPHENYLAMINO-3-CARBAMINOETHYL ESTER
C15H16N2O2 (256.12117159999997)
4-BENZYLOXY-3,5-DIMETHYLPHENYLBORONIC ACID
C15H17BO3 (256.12706820000005)
N-[4-(benzyloxy)phenyl]glycinamide
C15H16N2O2 (256.12117159999997)
(E)-3-(dimethylamino)-1-(5-methyl-3-phenyl-1,2-oxazol-4-yl)prop-2-en-1-one
C15H16N2O2 (256.12117159999997)
2-(2,3-dimethylphenoxy)-N-pyridin-4-ylacetamide
C15H16N2O2 (256.12117159999997)
3,5-Bis(2-cyanopropan-2-yl)benzoic acid
C15H16N2O2 (256.12117159999997)
N-[(2-methoxyphenyl)methyl]-7H-purin-1-ium-6-amine
(2S)-2-amino-4-{[(1R)-1-carboxy-2-(1H-imidazol-4-yl)ethyl]amino}butanoate
(2S)-2-amino-4-{[(1S)-1-carboxy-2-(1H-imidazol-4-yl)ethyl]amino}butanoate
2-azaniumyl-4-{5-[(2S)-2-azaniumyl-2-carboxylatoethyl]-1H-imidazol-2-yl}butanoate
N,N-dimethyl-1-[3-(1-methyl-3-indolyl)-1,2,4-oxadiazol-5-yl]methanamine
(3-hydroxy-5,6,7,8-tetrahydro-4H-cyclohepta[d]imidazol-2-yl)-phenylmethanone
C15H16N2O2 (256.12117159999997)
(3,5-Dimethyl-[1,2,4]triazol-4-yl)-[3-(2-methoxy-phenyl)-allylidene]-amine
2-[(2-methylphenyl)amino]-N-(1H-pyrrol-2-ylmethylene)acetohydrazide
5-amino-4-(1H-benzimidazol-2-yl)-1-propan-2-yl-2H-pyrrol-3-one
2-phenoxy-N-(2-pyridinyl)butanamide
C15H16N2O2 (256.12117159999997)
2-Allyl-6-{[(E)-3,5-dimethyl-[1,2,4]triazol-4-ylimino]-methyl}-phenol
N-{1-[(2-methylphenyl)amino]-1-oxopropan-2-yl}propan-1-aminium chloride
2-[(3S)-3-amino-3-carboxypropyl]-L-histidine
A 2-(3-amino-3-carboxypropyl)-L-histidine in which position 3 on the side-chain has S-configuration.
(1R)-7,8-dihydroxy-1-phenyl-2,3,4,5-tetrahydro-1H-3-benzazepin-3-ium
(1S)-7,8-dihydroxy-1-phenyl-2,3,4,5-tetrahydro-1H-3-benzazepin-3-ium
(2S)-2-azaniumyl-4-{5-[(2S)-2-azaniumyl-2-carboxylatoethyl]-1H-imidazol-2-yl}butanoate
Ethyl 4-amino-1-methyl-5-oxo-2H-pyrrole-3-carboxylate, TMS derivative
C11H20N2O3Si (256.12431300000003)
7,12-Dimethylbenz[a]anthracene
D009676 - Noxae > D002273 - Carcinogens
Decarbamoylsaxitoxin
A pyrrolopurine that is 2,6-diiminodecahydropyrrolo[1,2-c]purine carrying an additional hydroxymethyl substituent at position 4 as well as two hydroxy substituents at position 10. A toxin that is isolated from marine dinoflagellates and cyanobacteria and is known to cause paralytic shellfish poisoning. D009676 - Noxae > D011042 - Poisons > D008978 - Mollusk Venoms D009676 - Noxae > D011042 - Poisons > D008387 - Marine Toxins D009676 - Noxae > D011042 - Poisons > D014688 - Venoms
TRIPHENYLETHYLENE
D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006727 - Hormone Antagonists > D004965 - Estrogen Antagonists
2-[4-(3-Hydroxypropyl)-2-methoxyphenoxy]-1,3-propanediol
1-(9H-Pyrido[3,4-b]indol-1-yl)-1,4-butanediol
C15H16N2O2 (256.12117159999997)
2-[(3S)-3-amino-3-carboxypropyl]-L-histidine dizwitterion
A 2-(3-amino-3-carboxypropyl)-L-histidine dizwitterion arising from transfer of two protons from the carboxy to the amino groups of 2-[(3S)-3-amino-3-carboxypropyl]-L-histidine.
beta-aminopropionitrile hemifumarate
A fumarate salt prepared from beta-aminopropionitrile by reaction of one molecule of fumaric acid for every two molecules of beta-aminopropionitrile.
2-(3-amino-3-carboxypropyl)-L-histidine dizwitterion
A dizwitterionic form of 2-(3-amino-3-carboxypropyl)-L-histidine arising from transfer of two protons from the carboxy to the amino groups; major species at pH 7.3.
1-[5-(1h-indol-3-yl)-1,3-oxazol-2-yl]-2-methylpropan-2-ol
C15H16N2O2 (256.12117159999997)
(4r,6s,12r)-4-hydroxy-6-methoxy-12-methyl-1-oxacyclododec-9-ene-2,8-dione
6-[(1r,2r)-1,2-dihydroxyheptyl]-4-methoxypyran-2-one
4-hydroxy-6-methoxy-12-methyl-1-oxacyclododec-9-ene-2,8-dione
(1s,2s)-1-methoxy-1-(2,4,5-trimethoxyphenyl)propan-2-ol
2-(7-hydroxyoctylidene)-3-methylidenebutanedioic acid
(2r,4s)-6-(3-hydroxy-4-methoxyphenyl)hexane-1,2,4-triol
(5s)-2-imino-5-(1h-indol-3-ylmethyl)-1,3-dimethylimidazolidin-4-one
(3r)-3-methoxy-3-(3,4,5-trimethoxyphenyl)propan-1-ol
6-[(1r,2s)-1,2-dihydroxyheptyl]-4-methoxypyran-2-one
(1s,3s,5r,8s)-3,8-dihydroxy-8-[(1e,3r)-3-hydroxybut-1-en-1-yl]-1,5-dimethyl-6-oxabicyclo[3.2.1]octan-7-one
8-(2-oxopropylidene)-3,9-diazatricyclo[8.4.0.0³,⁷]tetradeca-1(14),10,12-trien-2-one
C15H16N2O2 (256.12117159999997)
2-[6-methyl-6-(4-oxopent-2-en-1-yl)-1,2-dioxan-3-yl]propanoic acid
(8ar)-2-methyl-3-(phenylmethylidene)-tetrahydropyrrolo[1,2-a]pyrazine-1,4-dione
C15H16N2O2 (256.12117159999997)
(2r,3s,4r,4as,7r,8as)-3,4-dihydroxy-2,7-dimethyl-2-[(1e)-prop-1-en-1-yl]-hexahydropyrano[3,2-c]pyran-5-one
(1r,2s)-2-{[(2r,2'r,3r,3's)-3'-[(1r)-1-hydroxybutyl]-[2,2'-bioxiran]-3-yl]methyl}cyclopropyl formate
(2e)-2-[(6s)-6-hydroxyoctylidene]-3-methylidenebutanedioic acid
(7s,8z)-8-(2-oxopropylidene)-3,9-diazatricyclo[8.4.0.0³,⁷]tetradeca-1(14),10,12-trien-2-one
C15H16N2O2 (256.12117159999997)
(4s,10r,12r)-4-hydroxy-10-methoxy-12-methyl-1-oxacyclododec-5-ene-2,8-dione
(3e,8ar)-2-methyl-3-(phenylmethylidene)-tetrahydropyrrolo[1,2-a]pyrazine-1,4-dione
C15H16N2O2 (256.12117159999997)
(1r,2r)-2-methoxy-1-(2,4,5-trimethoxyphenyl)propan-1-ol
(5e,7s)-5-ethylidene-8-hydroxy-7-methyl-3,9-diazatricyclo[8.4.0.0³,⁷]tetradeca-1(14),8,10,12-tetraen-2-one
C15H16N2O2 (256.12117159999997)
3,4-dihydroxy-2,7-dimethyl-2-(prop-1-en-1-yl)-hexahydropyrano[3,2-c]pyran-5-one
2-(1-hydroxy-2-methylpropyl)-3,4,5-trimethoxyphenol
4,5-dimethoxy-6-(1-methoxy-2-methylpropyl)benzene-1,3-diol
(3as,4r)-4-(hydroxymethyl)-2,6-diimino-hexahydro-1h-pyrrolo[1,2-c]purine-10,10-diol
2-[(1s)-1-hydroxy-2-methylpropyl]-3,4,5-trimethoxyphenol
1-hydroxy-3-isopropyl-4-methyl-3h-pyrrolo[3,4-b]quinolin-9-one
C15H16N2O2 (256.12117159999997)
(3s)-1-hydroxy-3-isopropyl-4-methyl-3h-pyrrolo[3,4-b]quinolin-9-one
C15H16N2O2 (256.12117159999997)
2-(8-hydroxyoctylidene)-3-methylidenebutanedioic acid
(3as,4r,10as)-4-(hydroxymethyl)-2,6-diimino-hexahydro-1h-pyrrolo[1,2-c]purine-10,10-diol
(2r)-2-[(3r,6s)-6-methyl-6-[(2e)-4-oxopent-2-en-1-yl]-1,2-dioxan-3-yl]propanoic acid
(3z,6z)-3-(2-methylpropylidene)-6-(phenylmethylidene)pyrazine-2,5-diol
C15H16N2O2 (256.12117159999997)
3,8-dihydroxy-8-(3-hydroxybut-1-en-1-yl)-1,5-dimethyl-6-oxabicyclo[3.2.1]octan-7-one
(4s,5e,10s,12r)-4-hydroxy-10-methoxy-12-methyl-1-oxacyclododec-5-ene-2,8-dione
(2e)-2-(7-hydroxyoctylidene)-3-methylidenebutanedioic acid
2-(1-hydroxyheptyl)-4-methyl-5-oxo-2h-furan-3-carboxylic acid
1-ethyl-4,8-dimethoxy-9h-pyrido[3,4-b]indole
C15H16N2O2 (256.12117159999997)
(2r)-2-(1-hydroxyheptyl)-4-methyl-5-oxo-2h-furan-3-carboxylic acid
(2r,3s,4s,4as,7r,8as)-3,4-dihydroxy-2,7-dimethyl-2-[(1e)-prop-1-en-1-yl]-hexahydropyrano[3,2-c]pyran-5-one
4-hydroxy-10-methoxy-12-methyl-1-oxacyclododec-5-ene-2,8-dione
(2e)-2-(8-hydroxyoctylidene)-3-methylidenebutanedioic acid
4,5-dimethoxy-6-[(1r)-1-methoxy-2-methylpropyl]benzene-1,3-diol
(2s)-2-{4-methoxy-9h-pyrido[3,4-b]indol-1-yl}propan-1-ol
C15H16N2O2 (256.12117159999997)