Exact Mass: 264.0535
Exact Mass Matches: 264.0535
Found 121 metabolites which its exact mass value is equals to given mass value 264.0535,
within given mass tolerance error 0.01 dalton. Try search metabolite list with more accurate mass tolerance error
0.001 dalton.
(1R,2R)-3-[(1,2-Dihydro-2-hydroxy-1-naphthalenyl)thio]-2-oxopropanoic acid
(1R,2R)-3-[(1,2-Dihydro-2-hydroxy-1-naphthalenyl)thio]-2-oxopropanoic acid
2',2'-Difluorodeoxyuridine
1-[(2S,4R,5S)-3,3-difluoro-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-4-hydroxy-1,2-dihydropyrimidin-2-one
2,2-Difluorodeoxyuridine is a metabolite of gemcitabine. Gemcitabine is a nucleoside analog used as chemotherapy. It is marketed as Gemzar by Eli Lilly and Company. (Wikipedia)
Necatorine
9-hydroxy-6-oxa-17,18-diazatetracyclo[8.8.0.0²,⁷.0¹¹,¹⁶]octadeca-1(10),2(7),3,8,11,13,15,17-octaen-5-one
Necatorine is found in mushrooms. Necatorine is an alkaloid from the mushroom Lactarius necator.
dapsone hydroxylamine
4-Amino-4-hydroxylaminodiphenylsulfone, T-labeled CPD
dapsone hydroxylamine is a metabolite of dapsone. Dapsone (diamino-diphenyl sulfone) is a medication most commonly used in combination with rifampicin and clofazimine as multidrug therapy (MDT) for the treatment of Mycobacterium leprae infections. It is also second-line treatment for prophylaxis (prevention) against Pneumocystis pneumonia (PCP) caused by Pneumocystis jirovecii (formerly P. carinii) in HIV patients in whom CD4 counts are below 200/mm. (Wikipedia)
1-[(4R,5R)-3,3-Difluoro-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidine-2,4-dione
1-[3,3-difluoro-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-1,2,3,4-tetrahydropyrimidine-2,4-dione
Difluorodeoxyuridine
5,6-difluoro-1-[4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-1,2,3,4-tetrahydropyrimidine-2,4-dione
Ethanethioic acid, S-(2-(((2R)-2-(acetylamino)-3-mercapto-1-oxopropyl)amino)ethyl)ester
Ethanethioic acid, S-(2-(((2R)-2-(acetylamino)-3-mercapto-1-oxopropyl)amino)ethyl)ester
1-[(2R,4S,5S)-5-[Difluoro(hydroxy)methyl]-4-hydroxyoxolan-2-yl]pyrimidine-2,4-dione
1-{5-[difluoro(hydroxy)methyl]-4-hydroxyoxolan-2-yl}-1,2,3,4-tetrahydropyrimidine-2,4-dione
3,3-Methylenebis(4-hydroxy-6-methyl-2H-pyran-2-one)
3,3-Methylenebis(4-hydroxy-6-methyl-2H-pyran-2-one)
Acetic acid 2-oxo-5,6-dimethoxy-2H-1-benzopyran-7-yl ester
Acetic acid 2-oxo-5,6-dimethoxy-2H-1-benzopyran-7-yl ester
2,5-dihydroxy-3,8-dimethoxy-7-methylnaphtho-1,4-quinone|Nepenthone E
2,5-dihydroxy-3,8-dimethoxy-7-methylnaphtho-1,4-quinone|Nepenthone E
2-Propenoic acid, 3-[3,4-bis(acetyloxy)phenyl]-, (E)-
2-Propenoic acid, 3-[3,4-bis(acetyloxy)phenyl]-, (E)-
2,2-Difluorodeoxyuridine
2,2-Difluoro-2-deoxyuridine
CONFIDENCE standard compound; EAWAG_UCHEM_ID 2649 2′,2′-Difluorodeoxyuridine (dFdU) is the main metabolite of Gemcitabine (HY-17026). 2′,2′-Difluorodeoxyuridine causes a concentration- and schedule- dependent radiosensitising effect in vitro[1].
4-hydroxy-3-[(4-hydroxy-6-methyl-2-oxopyran-3-yl)methyl]-6-methylpyran-2-one
NCGC00170015-02!4-hydroxy-3-[(4-hydroxy-6-methyl-2-oxopyran-3-yl)methyl]-6-methylpyran-2-one
3,7,8-trihydroxy-3-methyl-1,4-dihydropyrano[4,3-b]chromen-10-one
NCGC00380407-01!3,7,8-trihydroxy-3-methyl-1,4-dihydropyrano[4,3-b]chromen-10-one
4-hydroxy-3-[(4-hydroxy-6-methyl-2-oxopyran-3-yl)methyl]-6-methylpyran-2-one
4-hydroxy-3-[(4-hydroxy-6-methyl-2-oxopyran-3-yl)methyl]-6-methylpyran-2-one
4-hydroxy-3-[(4-hydroxy-6-methyl-2-oxopyran-3-yl)methyl]-6-methylpyran-2-one_major
4-hydroxy-3-[(4-hydroxy-6-methyl-2-oxopyran-3-yl)methyl]-6-methylpyran-2-one_major
3-(THIAZOL-2-YLCARBAMOYL)-BICYCLO[2.2.1]HEPT-5-ENE-2-CARBOXYLIC ACID
3-(THIAZOL-2-YLCARBAMOYL)-BICYCLO[2.2.1]HEPT-5-ENE-2-CARBOXYLIC ACID
Methyl 4-amino-3-(4-methoxyphenyl)isothiazole-5-carboxylate
Methyl 4-amino-3-(4-methoxyphenyl)isothiazole-5-carboxylate
5-METHYL-4-NITRO-2-(4-NITRO-PHENYL)-2H-PYRAZOL-3-OL
5-METHYL-4-NITRO-2-(4-NITRO-PHENYL)-2H-PYRAZOL-3-OL
2-Oxo-6-phenyl-4-(trifluoromethyl)-1,2-dihydropyridine-3-carbonitrile
2-Oxo-6-phenyl-4-(trifluoromethyl)-1,2-dihydropyridine-3-carbonitrile
Methyl 2-amino-4-(3-methoxyphenyl)thiazole-5-carboxylate
Methyl 2-amino-4-(3-methoxyphenyl)thiazole-5-carboxylate
METHYL 2-AMINO-4-(4-METHOXYPHENYL)THIAZOLE-5-CARBOXYLATE
METHYL 2-AMINO-4-(4-METHOXYPHENYL)THIAZOLE-5-CARBOXYLATE
5-(4,6-Dimethyl-pyrimidin-2-ylsulfanylmethyl)-furan-2-carboxylic acid
5-(4,6-Dimethyl-pyrimidin-2-ylsulfanylmethyl)-furan-2-carboxylic acid
N-(Tetrahydro-2-furoylcarbonyl)piperazine hydrobromide
N-(Tetrahydro-2-furoylcarbonyl)piperazine hydrobromide
2-(5-CHLORO-2-FLUOROPHENYL)-6,7-DIHYDRO-1H-CYCLOPENTA[D]PYRIMIDIN-4(5H)-ONE
2-(5-CHLORO-2-FLUOROPHENYL)-6,7-DIHYDRO-1H-CYCLOPENTA[D]PYRIMIDIN-4(5H)-ONE
methyl 3-(2,4-diaminophenoxy)thiophene-2-carboxylate
methyl 3-(2,4-diaminophenoxy)thiophene-2-carboxylate
Fluoro-N,N,N,N-tetramethylformamidinium hexafluorophosphate
Fluoro-N,N,N,N-tetramethylformamidinium hexafluorophosphate
2-(4-Isocyanatophenyl)-5-(trifluoromethyl)pyridine
2-(4-Isocyanatophenyl)-5-(trifluoromethyl)pyridine
1-[1-(PHENYLSULFONYL)-1H-PYRROL-3-YL]ETHAN-1-ONE OXIME
1-[1-(PHENYLSULFONYL)-1H-PYRROL-3-YL]ETHAN-1-ONE OXIME
2-(BIS-METHYLSULFANYL-METHYLENE)-MALONIC ACID DIETHYL ESTER
2-(BIS-METHYLSULFANYL-METHYLENE)-MALONIC ACID DIETHYL ESTER
1-(2-METHANESULFONYL-ETHYL)PIPERAZINE DIHYDROCHLORIDE
1-(2-METHANESULFONYL-ETHYL)PIPERAZINE DIHYDROCHLORIDE
5-chloro-6-((2-iminopyrrolidin-1-yl)methyl)-5,6-dihydropyrimidin-4(3h)-one hydrochloride
5-chloro-6-((2-iminopyrrolidin-1-yl)methyl)-5,6-dihydropyrimidin-4(3h)-one hydrochloride
5-(2,5-Dioxotetrahydrofuryl)-3-Methyl-3-Cyclohexene-1,2-Dicarboxylic Anhydride
5-(2,5-Dioxotetrahydrofuryl)-3-Methyl-3-Cyclohexene-1,2-Dicarboxylic Anhydride
2-amino-8-phenyl-7,9-dioxa-1-thia-3-azaspiro[4.5]dec-2-en-4-one
2-amino-8-phenyl-7,9-dioxa-1-thia-3-azaspiro[4.5]dec-2-en-4-one
2-(8-Hydroxy-6-methoxy-1-oxo-1H-isochromen-3-yl)propionic acid
2-(8-Hydroxy-6-methoxy-1-oxo-1H-isochromen-3-yl)propionic acid
C274 - Antineoplastic Agent > C1742 - Angiogenesis Inhibitor > C1971 - Angiogenesis Activator Inhibitor
3,8,9,10-Tetrahydroxy-7-hydroxymethyl-6-oxa-1,3-diaza-spiro[4.5]decane-2,4-dione
3,8,9,10-Tetrahydroxy-7-hydroxymethyl-6-oxa-1,3-diaza-spiro[4.5]decane-2,4-dione
5,6-Difluoro-1-[4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidine-2,4-dione
5,6-Difluoro-1-[4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidine-2,4-dione
1-[(2R,4S,5S)-5-[Difluoro(hydroxy)methyl]-4-hydroxyoxolan-2-yl]pyrimidine-2,4-dione
1-[(2R,4S,5S)-5-[Difluoro(hydroxy)methyl]-4-hydroxyoxolan-2-yl]pyrimidine-2,4-dione
1-[(4R,5R)-3,3-Difluoro-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidine-2,4-dione
1-[(4R,5R)-3,3-Difluoro-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidine-2,4-dione
2-[(2-chlorophenyl)methylthio]-6,7-dihydro-5H-pyrrolo[1,2-a]imidazole
2-[(2-chlorophenyl)methylthio]-6,7-dihydro-5H-pyrrolo[1,2-a]imidazole
(3S)-3,7,8-trihydroxy-3-methyl-1,4-dihydropyrano[4,3-b]chromen-10-one
(3S)-3,7,8-trihydroxy-3-methyl-1,4-dihydropyrano[4,3-b]chromen-10-one
(5E)-4-Amino-5-[(3-ethoxy-4-hydroxyphenyl)methylidene]-1,3-thiazol-2-one
(5E)-4-Amino-5-[(3-ethoxy-4-hydroxyphenyl)methylidene]-1,3-thiazol-2-one
Trimethylsilyl 1,3-dioxoisobenzofuran-5-carboxylate
Trimethylsilyl 1,3-dioxoisobenzofuran-5-carboxylate
2,2-Difluoro-2-deoxyuridine
2,2-Difluoro-2-deoxyuridine
A pyrimidine 2-deoxyribonucleoside that is uridine in which the hydroxy group at position 2 has been replaced by two fluoro substituents. It is a metabolite of the drug gemcitabine.
10-hydroxy-12-methoxy-6-methyl-3,7-dioxatricyclo[7.4.0.0²,⁶]trideca-1(13),9,11-triene-4,8-dione
10-hydroxy-12-methoxy-6-methyl-3,7-dioxatricyclo[7.4.0.0²,⁶]trideca-1(13),9,11-triene-4,8-dione
6-oxa-17,18-diazatetracyclo[8.8.0.0²,⁷.0¹¹,¹⁶]octadeca-1,3,7,10,12,14,16-heptaene-5,9-dione
6-oxa-17,18-diazatetracyclo[8.8.0.0²,⁷.0¹¹,¹⁶]octadeca-1,3,7,10,12,14,16-heptaene-5,9-dione
5,7-dihydroxy-3-(3-hydroxyoxolan-2-yl)chromen-4-one
5,7-dihydroxy-3-(3-hydroxyoxolan-2-yl)chromen-4-one
2-[(1e)-2-methanesulfinylethenyl]-6-methoxychromen-4-one
2-[(1e)-2-methanesulfinylethenyl]-6-methoxychromen-4-one
(3s)-6,8-dihydroxy-3-(hydroxymethyl)-7-methyl-4-methylidene-1-oxo-3h-2-benzopyran-5-carbaldehyde
(3s)-6,8-dihydroxy-3-(hydroxymethyl)-7-methyl-4-methylidene-1-oxo-3h-2-benzopyran-5-carbaldehyde
3-[(4as,7z)-4,6-dihydroxy-2-imino-1,4a-dihydropteridin-7-ylidene]-2-iminopropanoic acid
3-[(4as,7z)-4,6-dihydroxy-2-imino-1,4a-dihydropteridin-7-ylidene]-2-iminopropanoic acid
1,7,8-trihydroxy-3-methyl-1h,3h,4h-pyrano[4,3-b]chromen-10-one
1,7,8-trihydroxy-3-methyl-1h,3h,4h-pyrano[4,3-b]chromen-10-one
4,11-dihydroxy-8,16-diazatetracyclo[7.7.1.0²,⁷.0¹³,¹⁷]heptadeca-1(17),2(7),3,5,8,11,13,15-octaen-10-one
4,11-dihydroxy-8,16-diazatetracyclo[7.7.1.0²,⁷.0¹³,¹⁷]heptadeca-1(17),2(7),3,5,8,11,13,15-octaen-10-one
3-[(4as)-4-hydroxy-2-imino-6-oxo-4a,5-dihydro-1h-pteridin-7-ylidene]-2-iminopropanoic acid
3-[(4as)-4-hydroxy-2-imino-6-oxo-4a,5-dihydro-1h-pteridin-7-ylidene]-2-iminopropanoic acid
4,9-dihydroxy-6-methoxy-12,14-dioxatetracyclo[8.3.1.0¹,¹⁰.0³,⁸]tetradeca-3,5,7-trien-2-one
4,9-dihydroxy-6-methoxy-12,14-dioxatetracyclo[8.3.1.0¹,¹⁰.0³,⁸]tetradeca-3,5,7-trien-2-one
(1r,3s)-1,7,8-trihydroxy-3-methyl-1h,3h,4h-pyrano[4,3-b]chromen-10-one
(1r,3s)-1,7,8-trihydroxy-3-methyl-1h,3h,4h-pyrano[4,3-b]chromen-10-one
2-(8-hydroxy-6-methoxy-1-oxoisochromen-3-yl)propanoic acid
2-(8-hydroxy-6-methoxy-1-oxoisochromen-3-yl)propanoic acid
3,8-dihydroxy-2,5-dimethoxy-6-methylnaphthalene-1,4-dione
3,8-dihydroxy-2,5-dimethoxy-6-methylnaphthalene-1,4-dione
2,4,7-trihydroxy-5-methyl-2-(2-oxopropyl)indene-1,3-dione
2,4,7-trihydroxy-5-methyl-2-(2-oxopropyl)indene-1,3-dione
10-hydroxy-8,16-diazatetracyclo[7.7.1.0²,⁷.0¹³,¹⁷]heptadeca-1(17),2,5,7,9,12,14-heptaene-4,11-dione
10-hydroxy-8,16-diazatetracyclo[7.7.1.0²,⁷.0¹³,¹⁷]heptadeca-1(17),2,5,7,9,12,14-heptaene-4,11-dione
6-ethyl-5,7,8-trihydroxy-2-methoxynaphthalene-1,4-dione
6-ethyl-5,7,8-trihydroxy-2-methoxynaphthalene-1,4-dione
5,7-dihydroxy-3-[(2r,3s)-3-hydroxyoxolan-2-yl]chromen-4-one
5,7-dihydroxy-3-[(2r,3s)-3-hydroxyoxolan-2-yl]chromen-4-one
(2r,6r)-10-hydroxy-12-methoxy-6-methyl-3,7-dioxatricyclo[7.4.0.0²,⁶]trideca-1(13),9,11-triene-4,8-dione
(2r,6r)-10-hydroxy-12-methoxy-6-methyl-3,7-dioxatricyclo[7.4.0.0²,⁶]trideca-1(13),9,11-triene-4,8-dione
3-(7,8-dihydroxy-3-methyl-1-oxoisochromen-6-yl)propanoic acid
3-(7,8-dihydroxy-3-methyl-1-oxoisochromen-6-yl)propanoic acid
(1s,9r,10s)-4,9-dihydroxy-6-methoxy-12,14-dioxatetracyclo[8.3.1.0¹,¹⁰.0³,⁸]tetradeca-3,5,7-trien-2-one
(1s,9r,10s)-4,9-dihydroxy-6-methoxy-12,14-dioxatetracyclo[8.3.1.0¹,¹⁰.0³,⁸]tetradeca-3,5,7-trien-2-one
2-ethyl-3,5,8-trihydroxy-6-methoxynaphthalene-1,4-dione
2-ethyl-3,5,8-trihydroxy-6-methoxynaphthalene-1,4-dione
3,8-dihydroxy-5,6-dimethoxy-2-methylnaphthalene-1,4-dione
3,8-dihydroxy-5,6-dimethoxy-2-methylnaphthalene-1,4-dione
methyl 6,8-dihydroxy-5,7-dimethyl-1-oxoisochromene-3-carboxylate
methyl 6,8-dihydroxy-5,7-dimethyl-1-oxoisochromene-3-carboxylate
(6,8-dihydroxy-3-methyl-1-oxoisochromen-4-yl)methyl acetate
(6,8-dihydroxy-3-methyl-1-oxoisochromen-4-yl)methyl acetate
2-[(1e)-2-methanesulfinylethenyl]-7-methoxychromen-4-one
2-[(1e)-2-methanesulfinylethenyl]-7-methoxychromen-4-one
