Molecular formula
C21H17N5O3
49 compounds have this formula on CompoundList.
- Molar mass
- 387.40g/mol
- Monoisotopic mass
- 387.1331Da
- Atoms
- 46
- Elements
- 4
- Rings plus double bonds
- 16
The formula C21H17N5O3 describes a molecule made of 21 carbon atoms, 17 hydrogen atoms, 5 nitrogen atoms and 3 oxygen atoms. It is written in Hill notation: carbon first, then hydrogen, then the other elements in alphabetical order. The formula tells you which atoms are present, not how they are connected, which is why several different chemicals can share it.
Elemental composition
- C Carbon × 2165.11%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 174.42%1.008 × 17 = 17.136 g/mol
- N Nitrogen × 518.08%14.007 × 5 = 70.035 g/mol
- O Oxygen × 312.39%15.999 × 3 = 47.997 g/mol
Look up another formula
Compounds with the formula C21H17N5O3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 49 of 49 compounds
2-Amino-1-(3-nitrophenyl)-5-oxo-4-(3-pyridinyl)-1,4,5,6,7,8-hexahydro-3-quinolinecarbonitrile
CAS 296771-35-2C21H17N5O3
2-Amino-1-(4-nitrophenyl)-5-oxo-4-(3-pyridinyl)-1,4,5,6,7,8-hexahydro-3-quinolinecarbonitrile
CAS 311334-34-6C21H17N5O3
2-Amino-4-(4-nitrophenyl)-5-oxo-1-pyridin-3-yl-4,6,7,8-tetrahydroquinoline-3-carbonitrile
CAS 444923-25-5C21H17N5O3
![8-(2-Methoxyphenyl)-1-methyl-7-phenyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione chemical structure, C21H17N5O3, CAS 879460-30-7](/s/RCJPZVKYTXAIBI-UHFFFAOYSA-N.svg)
8-(2-Methoxyphenyl)-1-methyl-7-phenyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione
CAS 879460-30-7C21H17N5O3
![6-Amino-1-benzyl-3-methyl-4-(3-nitrophenyl)-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile chemical structure, C21H17N5O3, CAS 333778-65-7](/s/IVSLQVSBRLBFIP-UHFFFAOYSA-N.svg)
6-Amino-1-benzyl-3-methyl-4-(3-nitrophenyl)-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile
CAS 333778-65-7C21H17N5O3
![6-Amino-1-benzyl-3-methyl-4-(4-nitrophenyl)-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile chemical structure, C21H17N5O3, CAS 333778-64-6](/s/FRIKCDIIBGHRLO-UHFFFAOYSA-N.svg)
6-Amino-1-benzyl-3-methyl-4-(4-nitrophenyl)-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile
CAS 333778-64-6C21H17N5O3
![11-(4-Methoxyphenyl)-7,9-dimethylpyrimido[4',5':3,4]pyrrolo[2,1-c][1,2,4]benzotriazine-8,10(7H,9H)-dione chemical structure, C21H17N5O3, CAS 663929-09-7](/s/WBCWQOAVCBUVLY-UHFFFAOYSA-N.svg)
11-(4-Methoxyphenyl)-7,9-dimethylpyrimido[4',5':3,4]pyrrolo[2,1-c][1,2,4]benzotriazine-8,10(7H,9H)-dione
CAS 663929-09-7C21H17N5O3
2-Methyl-N-(6-methyl-2-phenylbenzotriazol-5-yl)-3-nitrobenzamide
CAS 347338-05-0C21H17N5O3
![4-Hydroxy-N-{2-[(quinolin-2-ylcarbonyl)amino]ethyl}quinazoline-2-carboxamide chemical structure, C21H17N5O3, CAS 954347-03-6](/s/JRHSWTXMZLMSSI-UHFFFAOYSA-N.svg)
4-Hydroxy-N-{2-[(quinolin-2-ylcarbonyl)amino]ethyl}quinazoline-2-carboxamide
CAS 954347-03-6C21H17N5O3
![2-[4-(6-Amino-5-cyano-3-phenyl-2,4-dihydropyrano[2,3-c]pyrazol-4-yl)phenoxy]acetamide chemical structure, C21H17N5O3, CAS 489397-38-8](/s/BWJXBPZUGMQKNJ-UHFFFAOYSA-N.svg)
2-[4-(6-Amino-5-cyano-3-phenyl-2,4-dihydropyrano[2,3-c]pyrazol-4-yl)phenoxy]acetamide
CAS 489397-38-8C21H17N5O3
![4-Benzoyl-N-[5-(1,5-dimethyl-1H-pyrazol-3-yl)-1,3,4-oxadiazol-2-yl]benzamide chemical structure, C21H17N5O3, CAS 1019101-46-2](/s/KUVUTGVZJBBFGO-UHFFFAOYSA-N.svg)
4-Benzoyl-N-[5-(1,5-dimethyl-1H-pyrazol-3-yl)-1,3,4-oxadiazol-2-yl]benzamide
CAS 1019101-46-2C21H17N5O3
![6-Amino-1,3-dimethyl-5-[2-(pyridin-2-yl)quinoline-4-carbonyl]-1,2,3,4-tetrahydropyrimidine-2,4-dione chemical structure, C21H17N5O3, CAS 945008-17-3](/s/CAOVHNYSCPDDJN-UHFFFAOYSA-N.svg)
6-Amino-1,3-dimethyl-5-[2-(pyridin-2-yl)quinoline-4-carbonyl]-1,2,3,4-tetrahydropyrimidine-2,4-dione
CAS 945008-17-3C21H17N5O3
![3-(5-{[(3Z)-5-(Carbamoylamino)-2-oxo-2,3-dihydro-1H-indol-3-ylidene]methyl}-1H-pyrrol-3-yl)benzamide chemical structure, C21H17N5O3, CAS 1056225-40-1](/s/NXUWGUQHCIIYBD-MFOYZWKCSA-N.svg)
3-(5-{[(3Z)-5-(Carbamoylamino)-2-oxo-2,3-dihydro-1H-indol-3-ylidene]methyl}-1H-pyrrol-3-yl)benzamide
CAS 1056225-40-1C21H17N5O3
![8-(3-Methoxyphenyl)-1-methyl-7-phenyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione chemical structure, C21H17N5O3, CAS 879474-89-2](/s/NSCVOEBFRSKSDT-UHFFFAOYSA-N.svg)
8-(3-Methoxyphenyl)-1-methyl-7-phenyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione
CAS 879474-89-2C21H17N5O3
![8-(4-Methoxyphenyl)-1-methyl-7-phenyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione chemical structure, C21H17N5O3, CAS 85592-15-0](/s/DCKQXUITCPJSMZ-UHFFFAOYSA-N.svg)
8-(4-Methoxyphenyl)-1-methyl-7-phenyl-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione
CAS 85592-15-0C21H17N5O3
![Ethyl 4-{4-[4-(1H-imidazol-1-yl)benzoyl]-1H-1,2,3-triazol-1-yl}benzenecarboxylate chemical structure, C21H17N5O3, CAS 478248-78-1](/s/FRFUNOOCBJGWCZ-UHFFFAOYSA-N.svg)
Ethyl 4-{4-[4-(1H-imidazol-1-yl)benzoyl]-1H-1,2,3-triazol-1-yl}benzenecarboxylate
CAS 478248-78-1C21H17N5O3
![2-Methyl-4-[3-nitro-4-(pyridin-3-ylmethylamino)phenyl]phthalazin-1-one chemical structure, C21H17N5O3, CAS 577983-29-0](/s/SIGFRMXLMCAUHJ-UHFFFAOYSA-N.svg)
2-Methyl-4-[3-nitro-4-(pyridin-3-ylmethylamino)phenyl]phthalazin-1-one
CAS 577983-29-0C21H17N5O3
![1,7-Dimethyl-8-(4-phenoxyphenyl)-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione chemical structure, C21H17N5O3, CAS 876901-64-3](/s/BFJIFSCJNNGNPD-UHFFFAOYSA-N.svg)
1,7-Dimethyl-8-(4-phenoxyphenyl)-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione
CAS 876901-64-3C21H17N5O3
![N-(4-Acetylphenyl)-2-(4-oxo-1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)acetamide chemical structure, C21H17N5O3, CAS 841211-65-2](/s/VBQYVOASTPQNGS-UHFFFAOYSA-N.svg)
N-(4-Acetylphenyl)-2-(4-oxo-1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)acetamide
CAS 841211-65-2C21H17N5O3
![6-(2-Hydroxyphenyl)-2,4-dimethyl-7-phenylpurino[7,8-a]imidazole-1,3-dione chemical structure, C21H17N5O3, CAS 728016-15-7](/s/LFZFIDWNZHCMHF-UHFFFAOYSA-N.svg)
6-(2-Hydroxyphenyl)-2,4-dimethyl-7-phenylpurino[7,8-a]imidazole-1,3-dione
CAS 728016-15-7C21H17N5O3
N-(3-(Furan-2-yl)-1-(6-oxo-4-phenyl-1,6-dihydropyrimidin-2-yl)-1H-pyrazol-5-yl)cyclopropanecarboxamide
CAS 1207005-88-6C21H17N5O3
![N-[2-(4-Ethylphenyl)benzotriazol-5-yl]-2-nitrobenzamide chemical structure, C21H17N5O3, CAS 431926-81-7](/s/IQLMNGNHSYBGIO-UHFFFAOYSA-N.svg)
N-[2-(4-Ethylphenyl)benzotriazol-5-yl]-2-nitrobenzamide
CAS 431926-81-7C21H17N5O3
![6-Amino-3-methyl-4-(4-methylphenyl)-1-(4-nitrophenyl)-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile chemical structure, C21H17N5O3, CAS 832740-51-9](/s/DHGLIVLRRFQLLR-UHFFFAOYSA-N.svg)
6-Amino-3-methyl-4-(4-methylphenyl)-1-(4-nitrophenyl)-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile
CAS 832740-51-9C21H17N5O3
![N-(4-Acetylphenyl)-2-(3-oxo-6-phenyl-[1,2,4]triazolo[4,3-b]pyridazin-2(3H)-yl)acetamide chemical structure, C21H17N5O3, CAS 1251630-28-0](/s/YOWGUPMADPLNIP-UHFFFAOYSA-N.svg)
N-(4-Acetylphenyl)-2-(3-oxo-6-phenyl-[1,2,4]triazolo[4,3-b]pyridazin-2(3H)-yl)acetamide
CAS 1251630-28-0C21H17N5O3
- N-[2-(4-Ethylphenyl)benzotriazol-5-yl]-4-nitrobenzamide431931-47-4C21H17N5O3
- N-(2-(6-Oxo-1,6-dihydropyridazin-3-yl)phenyl)-3-(4-oxoquinazolin-3(4H)-yl)propanamide1448122-60-8C21H17N5O3
- N-[1H-1,2,3-Benzotriazol-1-yl(4-nitrophenyl)methyl]-4-methylbenzamide305861-19-2C21H17N5O3
- Methyl 3-{[4-(1H-1,2,3-triazol-1-ylmethyl)-1-naphthoyl]amino}pyridine-2-carboxylate870970-99-3C21H17N5O3
- 5-Cyclopropyl-N-(2-((3-(pyridin-4-yl)-1,2,4-oxadiazol-5-yl)methyl)phenyl)isoxazole-3-carboxamide1797181-27-1C21H17N5O3
- 3-Methoxy-N-(2-((3-(pyrazin-2-yl)-1,2,4-oxadiazol-5-yl)methyl)phenyl)benzamide2034401-76-6C21H17N5O3
- 2-(2-(4-Oxoquinazolin-3(4H)-yl)acetyl)-3,4-dihydro-1H-dipyrido[1,2-a:4',3'-d]pyrimidin-11(2H)-one2034530-33-9C21H17N5O3
- 3-(3-(5-Phenyl-1,2,4-oxadiazol-3-yl)pyrrolidine-1-carbonyl)-1,8-naphthyridin-2(1H)-one2034322-87-5C21H17N5O3
- 2-Benzoyl-N-((3-(1-methyl-1H-pyrazol-4-yl)-1,2,4-oxadiazol-5-yl)methyl)benzamide2034296-31-4C21H17N5O3
- N-{[3-(1-Methyl-1H-pyrazol-4-yl)-1,2,4-oxadiazol-5-yl]methyl}-9H-xanthene-9-carboxamide2034384-14-8C21H17N5O3
- 3-(5-(1-(4-(1H-Pyrrol-1-yl)benzoyl)azetidin-3-yl)-1,2,4-oxadiazol-3-yl)pyridin-2(1H)-one1396683-10-5C21H17N5O3
- N-(2-Aminophenyl)-4-((5-nitro-2H-indazol-2-yl)methyl)benzamide920314-33-6C21H17N5O3
- 2-(2,4-Dioxo-3-(pyridin-2-ylmethyl)-3,4-dihydropyrido[3,2-d]pyrimidin-1(2H)-yl)-N-phenylacetamide941907-70-6C21H17N5O3
- 2-(2,4-Dioxo-3-(pyridin-3-ylmethyl)-3,4-dihydropyrido[3,2-d]pyrimidin-1(2H)-yl)-N-phenylacetamide941989-79-3C21H17N5O3
- 2-(2,4-Dioxo-3-(pyridin-4-ylmethyl)-3,4-dihydropyrido[3,2-d]pyrimidin-1(2H)-yl)-N-phenylacetamide941908-65-2C21H17N5O3
- 7-(2-Furylmethyl)-9-(4-methoxyphenyl)-2-methylpyrido[4,3-d][1,2,4]triazolo[1,5-a]pyrimidin-8(7H)-one1158406-89-3C21H17N5O3
- N-(3-(3-Methyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)phenyl)-2,3-dihydrobenzo[b][1,4]dioxine-2-carboxamide1207000-03-0C21H17N5O3
- 3-(1-Oxo-6-(quinazolin-4-ylamino)isoindolin-2-yl)piperidine-2,6-dione2503202-08-0C21H17N5O3
- 4,4'-((6-Phenoxy-1,3,5-triazine-2,4-diyl)bis(oxy))dianiline122343-78-6C21H17N5O3
- 1,2,4-Oxadiazole-5-propanamide, 3-(2-furanyl)-N-[4-(2-phenyldiazenyl)phenyl]-1390980-96-7C21H17N5O3
- 2-{1-[2-(1,2-Benzoxazol-3-yl)acetyl]azetidin-3-yl}-6-(pyridin-4-yl)-2,3-dihydropyridazin-3-one2380184-07-4C21H17N5O3
- 5-(((4-Hydroxy-3-methoxybenzylidene)hydrazineylidene)methyl)-2-oxo-4-(phenylamino)-1,2-dihydropyridine-3-carbonitrile352554-01-9C21H17N5O3
- (9H-Fluoren-9-yl)methyl N-{5-hydroxy-8-methyl-[1,2,4]triazolo[4,3-c]pyrimidin-3-yl}carbamate2764002-95-9C21H17N5O3
- (9H-Fluoren-9-yl)methyl N-{7-hydroxy-5-methyl-[1,2,4]triazolo[1,5-a]pyrimidin-6-yl}carbamate2764009-25-6C21H17N5O3
- 3-Amino-N-(4-benzylphenyl)-5-nitro-1H-indazole-1-carboxamide1263320-06-4C21H17N5O3
Frequently asked questions
What is the molar mass of C21H17N5O3?
The molar mass of C21H17N5O3 is 387.40 g/mol, calculated from standard atomic weights for 21 carbon atoms, 17 hydrogen atoms, 5 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 387.1331 Da.
How many compounds have the formula C21H17N5O3?
CompoundList lists 49 compounds with the molecular formula C21H17N5O3, including 2-Amino-1-(3-nitrophenyl)-5-oxo-4-(3-pyridinyl)-1,4,5,6,7,8-hexahydro-3-quinolinecarbonitrile, 2-Amino-1-(4-nitrophenyl)-5-oxo-4-(3-pyridinyl)-1,4,5,6,7,8-hexahydro-3-quinolinecarbonitrile, 2-Amino-4-(4-nitrophenyl)-5-oxo-1-pyridin-3-yl-4,6,7,8-tetrahydroquinoline-3-carbonitrile. Compounds that share a formula are isomers. They contain the same atoms arranged differently, so their properties, uses and prices can be very different.
What is the degree of unsaturation of C21H17N5O3?
C21H17N5O3 has a degree of unsaturation of 16. That is the total number of rings and pi bonds (a double bond counts as one, a triple bond as two) in any structure with this formula.