Exact Mass: 263.1283

Exact Mass Matches: 263.1283

Found 88 metabolites which its exact mass value is equals to given mass value 263.1283, within given mass tolerance error 0.01 dalton. Try search metabolite list with more accurate mass tolerance error 0.001 dalton.

Dimepiperate

S-1-Methyl-1-phenylethyl piperidine 1-carbothioate

C15H21NOS (263.1344)


   

7-Mercaptoheptanoylthreonine

7-Mercaptoheptanoylthreonine

C11H21NO4S (263.1191)


   

Girinimbine

5,5,8-trimethyl-6-oxa-17-azatetracyclo[8.7.0.0^{2,7}.0^{11,16}]heptadeca-1,3,7,9,11,13,15-heptaene

C18H17NO (263.131)


Girinimbine is a member of carbazoles. It has a role as a metabolite. Girinimbine is a natural product found in Clausena vestita, Murraya euchrestifolia, and other organisms with data available. Girinimbine is found in herbs and spices. Girinimbine is an alkaloid from the roots of Murraya koenigii (curry leaf tree A natural product found in Clausena harmandiana.

   

(E,E)-Lansamide I

(2E)-N-methyl-3-phenyl-N-[(Z)-2-phenylethenyl]prop-2-enamide

C18H17NO (263.131)


(E,E)-Lansamide I is found in fruits. (E,E)-Lansamide I is an alkaloid from the leaves and seeds of Clausena lansium (wampee

   

Lansiumamide B

(2E)-N-methyl-3-phenyl-N-[(E)-2-phenylethenyl]prop-2-enamide

C18H17NO (263.131)


Lansiumamide B is found in fruits. Lansiumamide B is isolated from seeds of Clausena lansium (wampee). Isolated from seeds of Clausena lansium (wampee). Lansiumamide B is found in fruits.

   

Didesethyl Chloroquine

N4-(7-chloroquinolin-4-yl)pentane-1,4-diamine

C14H18ClN3 (263.1189)


   

N(6)-L-Homocysteinyl-L-lysine

2-Amino-6-[(2-amino-4-sulfanylbutanoyl)amino]hexanoic acid

C10H21N3O3S (263.1304)


   

2-cis-abscisate

5-(1-hydroxy-2,6,6-trimethyl-4-oxocyclohex-2-en-1-yl)-3-methylpenta-2,4-dienoic acid

C15H19O4 (263.1283)


2-cis-abscisate is practically insoluble (in water) and a weakly acidic compound (based on its pKa). 2-cis-abscisate can be found in a number of food items such as common wheat, lemon thyme, black raspberry, and acorn, which makes 2-cis-abscisate a potential biomarker for the consumption of these food products.

   

3,7-Dihydro-3,3,10-trimethylpyrano[2,3-c]carbazole

3,7-Dihydro-3,3,10-trimethylpyrano[2,3-c]carbazole

C18H17NO (263.131)


   

Dioxypyramidon

Dioxoaminopyrine

C13H17N3O3 (263.127)


CONFIDENCE standard compound; EAWAG_UCHEM_ID 2708

   

UNII-5ECE84LCQ8

UNII-5ECE84LCQ8

C15H18FNO2 (263.1322)


   

3-(p-fluorobenzoyloxy)tropane

3-(p-fluorobenzoyloxy)tropane

C15H18FNO2 (263.1322)


   

2-Decene-6,8-diynoic acid, 9CI-2-Phenylethenylamide,(Z-)|dec-1c-en-6,8-diinsaeure-cis-styrylamid

2-Decene-6,8-diynoic acid, 9CI-2-Phenylethenylamide,(Z-)|dec-1c-en-6,8-diinsaeure-cis-styrylamid

C18H17NO (263.131)


   

4,5,6,7-Tetrahydroxydecyl isothiocyanate

4,5,6,7-Tetrahydroxydecyl isothiocyanate

C11H21NO4S (263.1191)


   

2,8-Decadiene-4,6-diynoic acid-2-Phenylethuylamide

2,8-Decadiene-4,6-diynoic acid-2-Phenylethuylamide

C18H17NO (263.131)


   

Dioxypyramidon

Dioxoaminopyrine

C13H17N3O3 (263.127)


CONFIDENCE standard compound; EAWAG_UCHEM_ID 2708

   

3,3,5-trimethyl-11H-pyrano[3,2-a]carbazole

NCGC00179930-02!3,3,5-trimethyl-11H-pyrano[3,2-a]carbazole

C18H17NO (263.131)


   

(4S,5Z,6S)-4-(2-methoxy-2-oxoethyl)-5-[2-[(E)-3-phenylprop-2-enoyl]oxyethylidene]-6-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-4H-pyran-3-carboxylic acid

(4S,5Z,6S)-4-(2-methoxy-2-oxoethyl)-5-[2-[(E)-3-phenylprop-2-enoyl]oxyethylidene]-6-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-4H-pyran-3-carboxylic acid

C18H17NO (263.131)


   

Girinimbine_major

Girinimbine_major

C18H17NO (263.131)


   

Girinimbine

Girinimbine

C18H17NO (263.131)


   

Bisdesethylchloroquine

Bisdesethylchloroquine

C14H18ClN3 (263.1189)


   

Lansiumamide b

(2E)-N-methyl-3-phenyl-N-[(E)-2-phenylethenyl]prop-2-enamide

C18H17NO (263.131)


   

girinimbin

5,5,8-trimethyl-6-oxa-17-azatetracyclo[8.7.0.0^{2,7}.0^{11,16}]heptadeca-1,3,7,9,11,13,15-heptaene

C18H17NO (263.131)


   

1H-Indole-3-carboxaldehyde,2-methyl-1-[(3-methylphenyl)methyl]-(9CI)

1H-Indole-3-carboxaldehyde,2-methyl-1-[(3-methylphenyl)methyl]-(9CI)

C18H17NO (263.131)


   

1H-Indole-3-carboxaldehyde,2-methyl-1-[(4-methylphenyl)methyl]-(9CI)

1H-Indole-3-carboxaldehyde,2-methyl-1-[(4-methylphenyl)methyl]-(9CI)

C18H17NO (263.131)


   

Boc-Leu-chloromethylketone

Boc-Leu-chloromethylketone

C12H22ClNO3 (263.1288)


   

1H-Indole-3-carboxaldehyde,7-ethyl-1-(phenylmethyl)-(9CI)

1H-Indole-3-carboxaldehyde,7-ethyl-1-(phenylmethyl)-(9CI)

C18H17NO (263.131)


   

4-HYDROXY-2,5-DIMETHYL-3-(MORPHOLINOMETHYL)-6-OXO-1,3-CYCLOHEXADIENE-1-CARBONITRILE

4-HYDROXY-2,5-DIMETHYL-3-(MORPHOLINOMETHYL)-6-OXO-1,3-CYCLOHEXADIENE-1-CARBONITRILE

C13H17N3O3 (263.127)


   

1,3-dimethyl-5-[2-(1-methylpyrrolidin-2-ylidene)ethylidene]-1,3-diazinane-2,4,6-trione

1,3-dimethyl-5-[2-(1-methylpyrrolidin-2-ylidene)ethylidene]-1,3-diazinane-2,4,6-trione

C13H17N3O3 (263.127)


   

4,4,5,5-tetramethyl-2-(2-methyl-4-nitrophenyl)-1,3,2-dioxaborolane

4,4,5,5-tetramethyl-2-(2-methyl-4-nitrophenyl)-1,3,2-dioxaborolane

C13H18BNO4 (263.1329)


   

6-((tert-Butyldimethylsilyloxy)methyl)furo[3,2-b]pyridine

6-((tert-Butyldimethylsilyloxy)methyl)furo[3,2-b]pyridine

C14H21NO2Si (263.1341)


   

TRANS-4-(1,1-DIMETHYLETHYLSULFONAMIDO)CYCLOHEXANECARBOXYLIC ACID

TRANS-4-(1,1-DIMETHYLETHYLSULFONAMIDO)CYCLOHEXANECARBOXYLIC ACID

C11H21NO4S (263.1191)


   

n-n-valeryl-d-glucosamine

n-n-valeryl-d-glucosamine

C11H21NO6 (263.1369)


   

N-(2-chloro-6-formylpyridin-3-yl)pivalamide

N-(2-chloro-6-formylpyridin-3-yl)pivalamide

C13H17N3O3 (263.127)


   

Methyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate

Methyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate

C13H18BNO4 (263.1329)


   

4-Methyl-3-nitrophenylboronic acid pinacol ester

4-Methyl-3-nitrophenylboronic acid pinacol ester

C13H18BNO4 (263.1329)


   

4,4,5,5-tetramethyl-2-(2-methyl-5-nitrophenyl)-1,3,2-dioxaborolane

4,4,5,5-tetramethyl-2-(2-methyl-5-nitrophenyl)-1,3,2-dioxaborolane

C13H18BNO4 (263.1329)


   

4,4,5,5-Tetramethyl-2-(2-methyl-3-nitrophenyl)-1,3,2-dioxaborolane

4,4,5,5-Tetramethyl-2-(2-methyl-3-nitrophenyl)-1,3,2-dioxaborolane

C13H18BNO4 (263.1329)


   

(3-(((1R,4R)-4-HYDROXYCYCLOHEXYL)CARBAMOYL)PHENYL)BORONIC ACID

(3-(((1R,4R)-4-HYDROXYCYCLOHEXYL)CARBAMOYL)PHENYL)BORONIC ACID

C13H18BNO4 (263.1329)


   

5-(Methoxycarbonyl)pyridine-3-boronic acid pinacol ester

5-(Methoxycarbonyl)pyridine-3-boronic acid pinacol ester

C13H18BNO4 (263.1329)


   

4,4,5,5-tetramethyl-2-(3-methyl-4-nitrophenyl)-1,3,2-dioxaborolane

4,4,5,5-tetramethyl-2-(3-methyl-4-nitrophenyl)-1,3,2-dioxaborolane

C13H18BNO4 (263.1329)


   

tert-Butyl (3-oxo-1,2,3,4-tetrahydroquinoxalin-6-yl)carbamate

tert-Butyl (3-oxo-1,2,3,4-tetrahydroquinoxalin-6-yl)carbamate

C13H17N3O3 (263.127)


   

N-(4-nitrophenyl)-2-piperidin-1-ylacetamide

N-(4-nitrophenyl)-2-piperidin-1-ylacetamide

C13H17N3O3 (263.127)


   

tert-butyl 3-amino-4-methoxyindazole-1-carboxylate

tert-butyl 3-amino-4-methoxyindazole-1-carboxylate

C13H17N3O3 (263.127)


   

6-AMINO-5-OXO-[1,4]DIAZEPANE-1-CARBOXYLICACIDBENZYLESTER

6-AMINO-5-OXO-[1,4]DIAZEPANE-1-CARBOXYLICACIDBENZYLESTER

C13H17N3O3 (263.127)


   

METHYL 6-(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)NICOTINATE

METHYL 6-(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)NICOTINATE

C13H18BNO4 (263.1329)


   

2-Propyl-4,5-diphenyloxazole

2-Propyl-4,5-diphenyloxazole

C18H17NO (263.131)


   

2,6-DI-TERT-BUTYL-4-THIOCYANATO-PHENOL

2,6-DI-TERT-BUTYL-4-THIOCYANATO-PHENOL

C15H21NOS (263.1344)


   

Benzoic acid,2-amino-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)

Benzoic acid,2-amino-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)

C13H18BNO4 (263.1329)


   

Tetrahydrozoline nitrate

4,5-Dihydro-2-(1,2,3,4-tetrahydro-1-naphthalenyl)-1H-imidazole mononitrate

C13H17N3O3 (263.127)


   
   

2-(Methoxycarbonyl)-4-pyridineboronic acid, pinacol ester

2-(Methoxycarbonyl)-4-pyridineboronic acid, pinacol ester

C13H18BNO4 (263.1329)


   

4-Methyl-2-nitrophenylboronic acid, pinacol ester

4-Methyl-2-nitrophenylboronic acid, pinacol ester

C13H18BNO4 (263.1329)


   

1H-Benz[g]indole-3-carboxaldehyde,2-cyclopentyl-(9CI)

1H-Benz[g]indole-3-carboxaldehyde,2-cyclopentyl-(9CI)

C18H17NO (263.131)


   

1-Piperidinecarboxylic acid, 4-(Methylsulfonyl)-, 1,1-dimethylethyl ester

1-Piperidinecarboxylic acid, 4-(Methylsulfonyl)-, 1,1-dimethylethyl ester

C11H21NO4S (263.1191)


   
   

4-(diethylamino)benzenediazonium tetrafluoroborate

4-(diethylamino)benzenediazonium tetrafluoroborate

C10H14BF4N3 (263.1217)


   

(4-(((1R,4R)-4-HYDROXYCYCLOHEXYL)CARBAMOYL)PHENYL)BORONIC ACID

(4-(((1R,4R)-4-HYDROXYCYCLOHEXYL)CARBAMOYL)PHENYL)BORONIC ACID

C13H18BNO4 (263.1329)


   

(2S)-2-cyclohexyl-2-(pyrazine-2-carbonylamino)acetic acid

(2S)-2-cyclohexyl-2-(pyrazine-2-carbonylamino)acetic acid

C13H17N3O3 (263.127)


   
   
   

(S)-2-trans-abscisate

(S)-2-trans-abscisate

C15H19O4- (263.1283)


   

Dimethylallyl-phlorisobutyrophenone

Dimethylallyl-phlorisobutyrophenone

C15H19O4- (263.1283)


   

pentalenolactone D(1-)

pentalenolactone D(1-)

C15H19O4- (263.1283)


A monocarboxylic acid anion that is the conjugate base of pentalenolactone D, obtained by deprotonation of the carboxy group; major species at pH 7.3.

   

(1S,4aR,9aR)-1,8,8-trimethyl-3-oxo-1,4,4a,6a,7,9-hexahydropentaleno[6a,1-c]pyran-5-carboxylate

(1S,4aR,9aR)-1,8,8-trimethyl-3-oxo-1,4,4a,6a,7,9-hexahydropentaleno[6a,1-c]pyran-5-carboxylate

C15H19O4- (263.1283)


   

2-trans-Abscisate

2-trans-Abscisate

C15H19O4- (263.1283)


   

2-cis-abscisate

2-cis-abscisate

C15H19O4- (263.1283)


   

N(6)-L-Homocysteinyl-L-lysine

N(6)-L-Homocysteinyl-L-lysine

C10H21N3O3S (263.1304)


An N(6)-acyl-L-lysine derivative in which the acyl group is L-homocysteinyl.

   

(1,4,8,11-Tetraazacyclotetradecane)copper(2+)

(1,4,8,11-Tetraazacyclotetradecane)copper(2+)

C10H24CuN4+2 (263.1297)


   

neopentalenolactone D(1-)

neopentalenolactone D(1-)

C15H19O4- (263.1283)


A monocarboxylic acid anion that is the conjugate base of neopentalenolactone D, obtained by deprotonation of the carboxy group; major species at pH 7.3.

   

(3Z)-dodec-3-en-1-yl sulfate

(3Z)-dodec-3-en-1-yl sulfate

C12H23O4S- (263.1317)


An organosulfate oxoanion that is the conjugate base of (3Z)-dodec-3-en-1-yl hydrogen sulfate. It has been isolated from Daphnia pulex and has been shown to cause morphological changes in the green alga Scenedesmus gutwinskii.

   

2-chloro-N,N-dipropyl-4-quinazolinamine

2-chloro-N,N-dipropyl-4-quinazolinamine

C14H18ClN3 (263.1189)


   

(R)-2-trans-abscisate

(R)-2-trans-abscisate

C15H19O4- (263.1283)


   

8-Methoxy-1,3,4,5-tetrahydro-2H-1-benzazepin-2-one, TMS derivative

8-Methoxy-1,3,4,5-tetrahydro-2H-1-benzazepin-2-one, TMS derivative

C14H21NO2Si (263.1341)


   

1-(4-Chlorobutyl)-2,2,6,6-tetramethyl-2,6-disilapiperidine

1-(4-Chlorobutyl)-2,2,6,6-tetramethyl-2,6-disilapiperidine

C11H26ClNSi2 (263.1292)


   

(4S)-1-Benzyl-4-((E)-styryl)-2-azetidinone

(4S)-1-Benzyl-4-((E)-styryl)-2-azetidinone

C18H17NO (263.131)


   

(+)-abscisate

(+)-abscisate

C15H19O4 (263.1283)


An abscisic acid anion derived from (+)-abscisic acid.

   

Dioxoaminopyrine

Dioxoaminopyrine

C13H17N3O3 (263.127)


A monocarboxylic acid amide that is N,N-dimethyl-2-oxoacetamide substituted by a 2-acetyl-2-methyl-1-phenylhydrazinyl group at position 2. It is a metabolite of the drug aminopyrine.

   

(e,2z)-n-[(1z)-2-phenylethenyl]dec-2-en-6,8-diynimidic acid

(e,2z)-n-[(1z)-2-phenylethenyl]dec-2-en-6,8-diynimidic acid

C18H17NO (263.131)


   

(2e)-n-methyl-3-phenyl-n-[(1e)-2-phenylethenyl]prop-2-enamide

(2e)-n-methyl-3-phenyl-n-[(1e)-2-phenylethenyl]prop-2-enamide

C18H17NO (263.131)


   

n-methyl-3-phenyl-n-(2-phenylethenyl)prop-2-enamide

n-methyl-3-phenyl-n-(2-phenylethenyl)prop-2-enamide

C18H17NO (263.131)


   

(2e)-n-methyl-3-phenyl-n-[(1z)-2-phenylethenyl]prop-2-enamide

(2e)-n-methyl-3-phenyl-n-[(1z)-2-phenylethenyl]prop-2-enamide

C18H17NO (263.131)


   

(2e,4e)-n-(2-methylpropyl)-6-(5-methylthiophen-2-yl)hexa-2,4-dienimidic acid

(2e,4e)-n-(2-methylpropyl)-6-(5-methylthiophen-2-yl)hexa-2,4-dienimidic acid

C15H21NOS (263.1344)


   

1-isothiocyanatodecane-4,5,6,7-tetrol

1-isothiocyanatodecane-4,5,6,7-tetrol

C11H21NO4S (263.1191)


   

(2e,8z)-n-(2-phenylethyl)deca-2,8-dien-4,6-diynimidic acid

(2e,8z)-n-(2-phenylethyl)deca-2,8-dien-4,6-diynimidic acid

C18H17NO (263.131)


   

(4r,5r,6s,7s)-1-isothiocyanatodecane-4,5,6,7-tetrol

(4r,5r,6s,7s)-1-isothiocyanatodecane-4,5,6,7-tetrol

C11H21NO4S (263.1191)


   

3,3,10-trimethyl-6h-pyrano[2,3-c]carbazole

3,3,10-trimethyl-6h-pyrano[2,3-c]carbazole

C18H17NO (263.131)


   

3,3,10-trimethyl-7h-pyrano[2,3-c]carbazole

3,3,10-trimethyl-7h-pyrano[2,3-c]carbazole

C18H17NO (263.131)