Exact Mass: 263.1077
Exact Mass Matches: 263.1077
Found 166 metabolites which its exact mass value is equals to given mass value 263.1077,
within given mass tolerance error 0.01 dalton. Try search metabolite list with more accurate mass tolerance error
0.001 dalton.
4-O-(beta-L-Araf)-cis-L-Hyp
4-O-(beta-L-Arabinofuranosyl)-(2S,4S)-4-hydroxyproline
An O(4)-glycosyl-L-hydroxyproline that is cis-L-hydroxylproline glycosylated by a beta-L-Araf moiety.
desethylzaleplon
7-[3-(ethylamino)phenyl]pyrazolo[1,5-a]pyrimidine-3-carbonitrile
desethylzaleplon is a metabolite of zaleplon. Zaleplon (marketed under the brand names Sonata and Starnoc) is a sedative/hypnotic, mainly used for insomnia. It is a nonbenzodiazepine hypnotic from the pyrazolopyrimidine class. In terms of adverse effects zaleplon appears to offer little improvement compared to both benzodiazepines and other non-benzodiazepine Z-drugs. Sonata (US) is manufactured by King Pharm. of Bristol, TN; Starnoc has been discontinued in Canada. (Wikipedia)
Creatine riboside
N-(N-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)carbamimidoyl)-N-methylglycine
Creatine riboside is a conjugate between creatine and ribose. It is a novel diagnostic marker for lung cancer that is elevated in the urine of non-small cell lung cancer subjects (PMID: 24736543). Creatine riboside may be a product of both high creatine levels within tumor cells and the characteristic high phosphate flux of cancer cells. Increased mutagenicity of creatine and ribose pyrolysis products in cooked foods has been reported, suggesting a functional role of creatine riboside in tumorigenesis (PMID: 24736543). Creatine riboside is likely not an enzyme-synthesized product as it can be formed spontaneously by mixing creatine with ribose. It can be synthesized in modestly high yields by reacting ribose and creatine in the presence of ammonium bicarbonate and heating the two compounds at 80°C for 10 minutes.
5-Amino-2-[(2-amino-3-carboxypropanoyl)oxyamino]pentanoic acid
5-amino-2-{[(2-amino-3-carboxypropanoyl)oxy]amino}pentanoic acid
(S)-8-acetyl-4-methoxy-9-methyl-6,7,8,9-tetrahydro-[1,3]dioxolo[4,5-h]isoquinoline|N-acetyl-anhalonine|N-Acetylanhalomine
(S)-8-acetyl-4-methoxy-9-methyl-6,7,8,9-tetrahydro-[1,3]dioxolo[4,5-h]isoquinoline|N-acetyl-anhalonine|N-Acetylanhalomine
Me glycoside,Me ester,N-Ac-alpha-D-Pyranose-4-Amino-4-deoxyglucuronic acid
Me glycoside,Me ester,N-Ac-alpha-D-Pyranose-4-Amino-4-deoxyglucuronic acid
1-ethyl-5-(7-hydroxy-benzo[1,3]dioxol-5-yl)-piperidin-2-one|Campedin|campedine
1-ethyl-5-(7-hydroxy-benzo[1,3]dioxol-5-yl)-piperidin-2-one|Campedin|campedine
1-(4-ISOPROPOXY-PHENYL)-5-OXO-PYRROLIDINE-3-CARBOXYLIC ACID
1-(4-ISOPROPOXY-PHENYL)-5-OXO-PYRROLIDINE-3-CARBOXYLIC ACID
1-Benzylpyrrolidine-3,4-dicarboxylic acid monomethyl ester
1-Benzylpyrrolidine-3,4-dicarboxylic acid monomethyl ester
2-(2-formylphenoxy)-N-(oxolan-2-ylmethyl)acetamide
2-(2-formylphenoxy)-N-(oxolan-2-ylmethyl)acetamide
(s)-piperidine-1,3-dicarboxylic acid 1-benzyl ester
(s)-piperidine-1,3-dicarboxylic acid 1-benzyl ester
METHYL 6-HYDROXY-7-(1-METHYLALLYL)-5-OXO-1,2,3,5-TETRAHYDROINDOLIZINE-8-CARBOXYLATE
METHYL 6-HYDROXY-7-(1-METHYLALLYL)-5-OXO-1,2,3,5-TETRAHYDROINDOLIZINE-8-CARBOXYLATE
3-Dimethylamino-1-(naphthalen-1-yl)propan-1-one hydrochloride
3-Dimethylamino-1-(naphthalen-1-yl)propan-1-one hydrochloride
2-(6-Methylpyridin-2-yl)-1-(quinoxalin-6-yl)ethanone
2-(6-Methylpyridin-2-yl)-1-(quinoxalin-6-yl)ethanone
(S)-1-Benzyl 3-Methyl pyrrolidine-1,3-dicarboxylate
(S)-1-Benzyl 3-Methyl pyrrolidine-1,3-dicarboxylate
Methyl 1-(4-methoxybenzyl)-5-oxo-3-pyrrolidinecarboxylate
Methyl 1-(4-methoxybenzyl)-5-oxo-3-pyrrolidinecarboxylate
1-BENZYL 2-METHYL 2-METHYLPYRROLIDINE-1,2-DICARBOXYLATE
1-BENZYL 2-METHYL 2-METHYLPYRROLIDINE-1,2-DICARBOXYLATE
4-BENZYLOXY-3-AMINO-A-[-BENZYL-N-(1-METHYL-2P-METHOXY PHENYL ETHER) AMINO-METHYL BENZYL ALCOHOL
4-BENZYLOXY-3-AMINO-A-[-BENZYL-N-(1-METHYL-2P-METHOXY PHENYL ETHER) AMINO-METHYL BENZYL ALCOHOL
[(3R,4R,5S,6R)-3-acetamido-2,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl] acetate
[(3R,4R,5S,6R)-3-acetamido-2,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl] acetate
(1S,4R)-cis-4-Amino-2-cyclopentene-1-methanol D-Tartrate
(1S,4R)-cis-4-Amino-2-cyclopentene-1-methanol D-Tartrate
(S)-1-Benzyl 2-methyl pyrrolidine-1,2-dicarboxylate
(S)-1-Benzyl 2-methyl pyrrolidine-1,2-dicarboxylate
1-(6-METHYLPYRIDIN-2-YL)-2-(QUINOXALIN-6-YL)ETHANONE
1-(6-METHYLPYRIDIN-2-YL)-2-(QUINOXALIN-6-YL)ETHANONE
2-[3-(Benzyloxy)phenyl]ethanamine hydrochloride (1:1)
2-[3-(Benzyloxy)phenyl]ethanamine hydrochloride (1:1)
2-(1-(Benzyloxycarbonyl)pyrrolidin-2-yl)acetic acid
2-(1-(Benzyloxycarbonyl)pyrrolidin-2-yl)acetic acid
Benzyl 1,4-dioxa-7-azaspiro[4.4]nonane-7-carboxylate
Benzyl 1,4-dioxa-7-azaspiro[4.4]nonane-7-carboxylate
ETHYL 2,5-DIMETHYL-1-(2-THIENYLMETHYL)-1H-PYRROLE-3-CARBOXYLATE
ETHYL 2,5-DIMETHYL-1-(2-THIENYLMETHYL)-1H-PYRROLE-3-CARBOXYLATE
4-ethyl-3-[(4-ethylphenoxy)methyl]-1H-1,2,4-triazole-5-thione
4-ethyl-3-[(4-ethylphenoxy)methyl]-1H-1,2,4-triazole-5-thione
1-(2,2-DIMETHOXY-ETHYL)-4-ETHYL-1H-INDOLE-2,3-DIONE
1-(2,2-DIMETHOXY-ETHYL)-4-ETHYL-1H-INDOLE-2,3-DIONE
(R)-Benzyl 4-formyl-2,2-dimethyloxazolidine-3-carboxylate
(R)-Benzyl 4-formyl-2,2-dimethyloxazolidine-3-carboxylate
1-METHYL-3-(((1-METHYL-1H-PYRAZOL-4-YL)METHYL)CARBAMOYL)-1H-PYRAZOLE-4-CARBOXYLIC ACID
1-METHYL-3-(((1-METHYL-1H-PYRAZOL-4-YL)METHYL)CARBAMOYL)-1H-PYRAZOLE-4-CARBOXYLIC ACID
2-(4-METHOXYPHENYL)-2-PHENYLETHYLAMINE HYDROCHLORIDE
2-(4-METHOXYPHENYL)-2-PHENYLETHYLAMINE HYDROCHLORIDE
2-Chloro-1-(2,2,4,7-tetramethyl-2H-quinolin-1-yl)-ethanone
2-Chloro-1-(2,2,4,7-tetramethyl-2H-quinolin-1-yl)-ethanone
(S)-1-(TERT-BUTOXYCARBONYL)INDOLINE-2-CARBOXYLIC ACID
(S)-1-(TERT-BUTOXYCARBONYL)INDOLINE-2-CARBOXYLIC ACID
2-(tert-Butoxycarbonyl)isoindoline-1-carboxylicacid
2-(tert-Butoxycarbonyl)isoindoline-1-carboxylicacid
5-(TERT-BUTYL)-3,3-DIMETHYL-6-NITROBENZOFURAN-2(3H)-ONE
5-(TERT-BUTYL)-3,3-DIMETHYL-6-NITROBENZOFURAN-2(3H)-ONE
2-[(2-methylpropan-2-yl)oxycarbonyl]-1,3-dihydroisoindole-5-carboxylic acid
2-[(2-methylpropan-2-yl)oxycarbonyl]-1,3-dihydroisoindole-5-carboxylic acid
1-(4-METHOXY-BENZOYL)-PIPERIDINE-4-CARBOXYLIC ACID
1-(4-METHOXY-BENZOYL)-PIPERIDINE-4-CARBOXYLIC ACID
Propanedioic acid,2-[(phenylamino)methylene]-, 1,3-diethyl ester
Propanedioic acid,2-[(phenylamino)methylene]-, 1,3-diethyl ester
{3-[(2,4-Dimethylphenoxy)methyl]-phenyl}amine hydrochloride
{3-[(2,4-Dimethylphenoxy)methyl]-phenyl}amine hydrochloride
1-Propanone,3-(dimethylamino)-1-(2-naphthalenyl)-, hydrochloride (1:1)
1-Propanone,3-(dimethylamino)-1-(2-naphthalenyl)-, hydrochloride (1:1)
Ethyl 5-amino-1-(2-fluorobenzyl)-1H-pyrazole-3-carboxylate
Ethyl 5-amino-1-(2-fluorobenzyl)-1H-pyrazole-3-carboxylate
1-[(TERT-BUTOXY)CARBONYL]-2,3-DIHYDRO-1H-INDOLE-5-CARBOXYLIC ACID
1-[(TERT-BUTOXY)CARBONYL]-2,3-DIHYDRO-1H-INDOLE-5-CARBOXYLIC ACID
1-O-benzyl 3-O-methyl 3-methylazetidine-1,3-dicarboxylate
1-O-benzyl 3-O-methyl 3-methylazetidine-1,3-dicarboxylate
ETHYL 8-METHOXY-2-OXO-2,3,4,5-TETRAHYDRO-1H-BENZO[B]AZEPINE-4-CARBOXYLATE
ETHYL 8-METHOXY-2-OXO-2,3,4,5-TETRAHYDRO-1H-BENZO[B]AZEPINE-4-CARBOXYLATE
METHYL 6-HYDROXY-7-(2-METHYLALLYL)-5-OXO-1,2,3,5-TETRAHYDROINDOLIZINE-8-CARBOXYLATE
METHYL 6-HYDROXY-7-(2-METHYLALLYL)-5-OXO-1,2,3,5-TETRAHYDROINDOLIZINE-8-CARBOXYLATE
(R)-1-((Benzyloxy)carbonyl)piperidine-3-carboxylic acid
(R)-1-((Benzyloxy)carbonyl)piperidine-3-carboxylic acid
4-phenyl-4,10-dihydro-[1,3,5]triazino[1,2-a]benzimidazol-2-amine
4-phenyl-4,10-dihydro-[1,3,5]triazino[1,2-a]benzimidazol-2-amine
3-Hydroxy-4-(3,4,5-trihydroxy-tetrahydro-pyran-2-yloxy)-piperidin-2-one
3-Hydroxy-4-(3,4,5-trihydroxy-tetrahydro-pyran-2-yloxy)-piperidin-2-one
1-benzyl-3-pyridin-3-yl-1H-pyrazole-4-carbaldehyde
1-benzyl-3-pyridin-3-yl-1H-pyrazole-4-carbaldehyde
N-methyl-6-phenyl-3-(2-pyridinyl)-1,2,4-triazin-5-amine
N-methyl-6-phenyl-3-(2-pyridinyl)-1,2,4-triazin-5-amine
2-[3-(4-Cyanoanilino)-1-(dimethylamino)-2-propenylidene]malononitrile
2-[3-(4-Cyanoanilino)-1-(dimethylamino)-2-propenylidene]malononitrile
8-(Pyrimidin-2-ylamino)naphthalene-2-carboximidamide
8-(Pyrimidin-2-ylamino)naphthalene-2-carboximidamide
4-(5-Phenyl-1,2-oxazol-3-yl)benzenecarboximidamide
4-(5-Phenyl-1,2-oxazol-3-yl)benzenecarboximidamide
N(2)-phenylacetyl-L-glutaminate
N(2)-phenylacetyl-L-glutaminate
An N-acyl-L-alpha-amino acid anion that is the conjugate base of N(2)-phenylacetyl-L-glutamine; major species at pH 7.3.
(3,5-Dimethyl-1-pyrazolyl)-(2-ethyl-4-nitro-3-pyrazolyl)methanone
(3,5-Dimethyl-1-pyrazolyl)-(2-ethyl-4-nitro-3-pyrazolyl)methanone
N-[2-(4-methoxyphenyl)ethyl]-2,3-dihydro-1,4-dioxin-5-carboxamide
N-[2-(4-methoxyphenyl)ethyl]-2,3-dihydro-1,4-dioxin-5-carboxamide
4-tert-butyl-2-{(2E)-2-[(5-methylfuran-2-yl)methylidene]hydrazinyl}-1,3-thiazole
4-tert-butyl-2-{(2E)-2-[(5-methylfuran-2-yl)methylidene]hydrazinyl}-1,3-thiazole
(E)-2-(6-methyl-1H-benzimidazol-2-yl)-3-(5-methylfuran-2-yl)prop-2-enenitrile
(E)-2-(6-methyl-1H-benzimidazol-2-yl)-3-(5-methylfuran-2-yl)prop-2-enenitrile
(3R)-5-[(2R,3R,5R,6S)-3,5-dihydroxy-6-methyloxan-2-yl]oxy-3-hydroxypentanoate
(3R)-5-[(2R,3R,5R,6S)-3,5-dihydroxy-6-methyloxan-2-yl]oxy-3-hydroxypentanoate
(3S,4R)-4-[(2S,3R,5R,6S)-3,5-dihydroxy-6-methyloxan-2-yl]oxy-3-hydroxypentanoate
(3S,4R)-4-[(2S,3R,5R,6S)-3,5-dihydroxy-6-methyloxan-2-yl]oxy-3-hydroxypentanoate
Benzylmethylamino-1,2-bis(methoxycarbonyl)ethylene
Benzylmethylamino-1,2-bis(methoxycarbonyl)ethylene
7-[3-(ethylamino)phenyl]pyrazolo[1,5-a]pyrimidine-3-carbonitrile
7-[3-(ethylamino)phenyl]pyrazolo[1,5-a]pyrimidine-3-carbonitrile
N-(N-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)carbamimidoyl)-N-methylglycine
N-(N-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)carbamimidoyl)-N-methylglycine
4-O-(beta-L-Araf)-cis-L-Hyp zwitterion
4-O-(beta-L-Araf)-cis-L-Hyp zwitterion
An amino acid zwitterion obtained by transfer of a proton from the carboxy to the amino group of 4-O-(beta-L-Araf)-cis-L-Hyp.
1-hydroxy-3-(4-hydroxyphenyl)-4-(2-methylpropyl)pyrrolidine-2,5-dione
1-hydroxy-3-(4-hydroxyphenyl)-4-(2-methylpropyl)pyrrolidine-2,5-dione
n-(2-carbamimidoylethyl)-4-hydroxy-2-imino-1h,7h-pyrrolo[2,3-d]pyrimidine-5-carboximidic acid
n-(2-carbamimidoylethyl)-4-hydroxy-2-imino-1h,7h-pyrrolo[2,3-d]pyrimidine-5-carboximidic acid
4,5-dihydroxy-3-methoxy-5-methyl-6-(phenylamino)cyclohex-2-en-1-one
4,5-dihydroxy-3-methoxy-5-methyl-6-(phenylamino)cyclohex-2-en-1-one
(2e)-3-(7-hydroxy-2h-1,3-benzodioxol-5-yl)-n-(2-methylpropyl)prop-2-enimidic acid
(2e)-3-(7-hydroxy-2h-1,3-benzodioxol-5-yl)-n-(2-methylpropyl)prop-2-enimidic acid
n-[2-hydroxy-3-(5-hydroxy-2-imino-3h-imidazol-4-ylidene)propyl]-1h-pyrrole-2-carboxamide
n-[2-hydroxy-3-(5-hydroxy-2-imino-3h-imidazol-4-ylidene)propyl]-1h-pyrrole-2-carboxamide
4-methoxy-8,15-dioxa-7-azatetracyclo[7.6.1.0¹,¹².0²,⁷]hexadeca-10,12-dien-14-one
4-methoxy-8,15-dioxa-7-azatetracyclo[7.6.1.0¹,¹².0²,⁷]hexadeca-10,12-dien-14-one
(1s,2s,4s,9s)-4-methoxy-8,15-dioxa-7-azatetracyclo[7.6.1.0¹,¹².0²,⁷]hexadeca-10,12-dien-14-one
(1s,2s,4s,9s)-4-methoxy-8,15-dioxa-7-azatetracyclo[7.6.1.0¹,¹².0²,⁷]hexadeca-10,12-dien-14-one
(3r,4s)-1-hydroxy-3-(4-hydroxyphenyl)-4-(2-methylpropyl)pyrrolidine-2,5-dione
(3r,4s)-1-hydroxy-3-(4-hydroxyphenyl)-4-(2-methylpropyl)pyrrolidine-2,5-dione
3-(7-hydroxy-2h-1,3-benzodioxol-5-yl)-n-(2-methylpropyl)prop-2-enimidic acid
3-(7-hydroxy-2h-1,3-benzodioxol-5-yl)-n-(2-methylpropyl)prop-2-enimidic acid
(4r,5r,6r)-4,5-dihydroxy-3-methoxy-5-methyl-6-(phenylamino)cyclohex-2-en-1-one
(4r,5r,6r)-4,5-dihydroxy-3-methoxy-5-methyl-6-(phenylamino)cyclohex-2-en-1-one
n-[(2s)-2-hydroxy-3-[(4z)-5-hydroxy-2-imino-3h-imidazol-4-ylidene]propyl]-1h-pyrrole-2-carboxamide
n-[(2s)-2-hydroxy-3-[(4z)-5-hydroxy-2-imino-3h-imidazol-4-ylidene]propyl]-1h-pyrrole-2-carboxamide
(3s,4r)-1-hydroxy-3-(4-hydroxyphenyl)-4-(2-methylpropyl)pyrrolidine-2,5-dione
(3s,4r)-1-hydroxy-3-(4-hydroxyphenyl)-4-(2-methylpropyl)pyrrolidine-2,5-dione
