Molecular formula
C21H17N3O2
187 compounds have this formula on CompoundList.
- Molar mass
- 343.39g/mol
- Monoisotopic mass
- 343.1321Da
- Atoms
- 43
- Elements
- 4
- Rings plus double bonds
- 15
The formula C21H17N3O2 describes a molecule made of 21 carbon atoms, 17 hydrogen atoms, 3 nitrogen atoms and 2 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 × 2173.45%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 174.99%1.008 × 17 = 17.136 g/mol
- N Nitrogen × 312.24%14.007 × 3 = 42.021 g/mol
- O Oxygen × 29.32%15.999 × 2 = 31.998 g/mol
Look up another formula
Compounds with the formula C21H17N3O2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 101 to 187 of 187 compounds
1-Ethyl-N-(naphthalen-1-yl)-2-oxo-1,2-dihydro-1,8-naphthyridine-3-carboxamide
CAS 942010-52-8C21H17N3O2
![2-Methyl-N-(2-methyl-4-[1,3]oxazolo[4,5-b]pyridin-2-ylphenyl)benzamide chemical structure, C21H17N3O2, CAS 900757-82-6](/s/CKPQWLICVUPNID-UHFFFAOYSA-N.svg)
2-Methyl-N-(2-methyl-4-[1,3]oxazolo[4,5-b]pyridin-2-ylphenyl)benzamide
CAS 900757-82-6C21H17N3O2
![5,7-Diphenyl-pyrazolo[1,5-a]pyrimidine-3-carboxylic Acid Ethyl Ester chemical structure, C21H17N3O2, CAS 895764-31-5](/s/VPVGNODMXRSGGB-UHFFFAOYSA-N.svg)
5,7-Diphenyl-pyrazolo[1,5-a]pyrimidine-3-carboxylic Acid Ethyl Ester
CAS 895764-31-5C21H17N3O2
![4-[1,1-Biphenyl]-4-yl-7H-pyrrolo[2,3-d]pyrimidine-5-carboxylic acid ethyl ester chemical structure, C21H17N3O2, CAS 1443235-26-4](/s/JKDFAIDFNLNJDT-UHFFFAOYSA-N.svg)
4-[1,1-Biphenyl]-4-yl-7H-pyrrolo[2,3-d]pyrimidine-5-carboxylic acid ethyl ester
CAS 1443235-26-4C21H17N3O2
6-(2-(Naphthalen-1-yl)acetyl)-2-oxo-1,2,5,6,7,8-hexahydro-1,6-naphthyridine-3-carbonitrile
CAS 2034426-29-2C21H17N3O2
![N-{[3-(Furan-2-yl)pyrazin-2-yl]methyl}-2-(naphthalen-1-yl)acetamide chemical structure, C21H17N3O2, CAS 2034300-86-0](/s/AKOLQRYSQKGBLL-UHFFFAOYSA-N.svg)
N-{[3-(Furan-2-yl)pyrazin-2-yl]methyl}-2-(naphthalen-1-yl)acetamide
CAS 2034300-86-0C21H17N3O2
![3,5-Bis(2-hydroxyphenyl)-1-benzyl-1H-[1,2,4]triazole chemical structure, C21H17N3O2, CAS 201530-47-4](/s/IMQZSDPAWCPRNS-UHFFFAOYSA-N.svg)
3,5-Bis(2-hydroxyphenyl)-1-benzyl-1H-[1,2,4]triazole
CAS 201530-47-4C21H17N3O2
1-Acridin-4-yl-3-(2-methoxyphenyl)urea
CAS 6936-85-2C21H17N3O2
3-(3-Nitrophenyl)-1,5-diphenyl-4,5-dihydro-1H-pyrazole
CAS 6969-05-7C21H17N3O2
1-Acridin-9-yl-3-(4-methoxyphenyl)urea
CAS 26687-11-6C21H17N3O2
![1,3-Dimethyl-5,7-diphenylpyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione chemical structure, C21H17N3O2, CAS 59796-99-5](/s/RNZGIDHSHMMEPN-UHFFFAOYSA-N.svg)
1,3-Dimethyl-5,7-diphenylpyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione
CAS 59796-99-5C21H17N3O2
![2-Methoxy-3-[5-(2-methylphenyl)-1,2,4-oxadiazol-3-yl]-6-phenylpyridine chemical structure, C21H17N3O2, CAS 701966-72-5](/s/JTKPFUKFJXQTAE-UHFFFAOYSA-N.svg)
2-Methoxy-3-[5-(2-methylphenyl)-1,2,4-oxadiazol-3-yl]-6-phenylpyridine
CAS 701966-72-5C21H17N3O2
3,5-Dimethyl-N-(2-pyridin-4-yl-1,3-benzoxazol-5-yl)benzamide
CAS 679804-53-6C21H17N3O2
![N-[[4-([1,3]Oxazolo[4,5-b]pyridin-2-yl)phenyl]methyl]-2-phenylacetamide chemical structure, C21H17N3O2, CAS 895075-19-1](/s/ZQMQHILGNZNSJO-UHFFFAOYSA-N.svg)
N-[[4-([1,3]Oxazolo[4,5-b]pyridin-2-yl)phenyl]methyl]-2-phenylacetamide
CAS 895075-19-1C21H17N3O2
![2-Methyl-N-(4-[1,3]oxazolo[4,5-b]pyridin-2-ylbenzyl)benzamide chemical structure, C21H17N3O2, CAS 895075-64-6](/s/NXTZESPNYGCASQ-UHFFFAOYSA-N.svg)
2-Methyl-N-(4-[1,3]oxazolo[4,5-b]pyridin-2-ylbenzyl)benzamide
CAS 895075-64-6C21H17N3O2
![N-[5-(2,5-Dimethylphenyl)-1,3,4-oxadiazol-2-yl]naphthalene-2-carboxamide chemical structure, C21H17N3O2, CAS 891123-53-8](/s/KHCRWNHPJHCEAB-UHFFFAOYSA-N.svg)
N-[5-(2,5-Dimethylphenyl)-1,3,4-oxadiazol-2-yl]naphthalene-2-carboxamide
CAS 891123-53-8C21H17N3O2
![N-(2-Cyanophenyl)-1-[(4-methylphenyl)methyl]-2-oxopyridine-3-carboxamide chemical structure, C21H17N3O2, CAS 946253-92-5](/s/ZUADQJPYBQAZPE-UHFFFAOYSA-N.svg)
N-(2-Cyanophenyl)-1-[(4-methylphenyl)methyl]-2-oxopyridine-3-carboxamide
CAS 946253-92-5C21H17N3O2
N-(2-Cyanophenyl)-1-(2-methylbenzyl)-2-oxo-1,2-dihydropyridine-3-carboxamide
CAS 899947-75-2C21H17N3O2
1-(1H-Indol-3-yl)-3-(4-phenoxyphenyl)urea
CAS 923067-56-5C21H17N3O2
![N-[4-(4-Methylphenyl)-1,2,5-oxadiazol-3-yl]-2-(naphthalen-1-yl)acetamide chemical structure, C21H17N3O2, CAS 898469-94-8](/s/QINKIUNOGAYFNC-UHFFFAOYSA-N.svg)
N-[4-(4-Methylphenyl)-1,2,5-oxadiazol-3-yl]-2-(naphthalen-1-yl)acetamide
CAS 898469-94-8C21H17N3O2
![N-{2,8-Dimethyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl}naphthalene-2-carboxamide chemical structure, C21H17N3O2, CAS 897617-33-3](/s/BTXTVDPPNYLFER-UHFFFAOYSA-N.svg)
N-{2,8-Dimethyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl}naphthalene-2-carboxamide
CAS 897617-33-3C21H17N3O2
![N-{2,9-Dimethyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl}naphthalene-2-carboxamide chemical structure, C21H17N3O2, CAS 897617-56-0](/s/GXYXRTDDABFCDK-UHFFFAOYSA-N.svg)
N-{2,9-Dimethyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl}naphthalene-2-carboxamide
CAS 897617-56-0C21H17N3O2
![3-(5-(Pyridin-2-yl)-5,10b-dihydro-1H-benzo[e]pyrazolo[1,5-c][1,3]oxazin-2-yl)phenol chemical structure, C21H17N3O2, CAS 899973-53-6](/s/CLCKHSGCPXWGSY-UHFFFAOYSA-N.svg)
3-(5-(Pyridin-2-yl)-5,10b-dihydro-1H-benzo[e]pyrazolo[1,5-c][1,3]oxazin-2-yl)phenol
CAS 899973-53-6C21H17N3O2
(1-Cyano-2-indolizinyl)methyl 2-methyl-1H-indole-1-acetate
CAS 1061682-79-8C21H17N3O2
- N-{2,6-Dimethyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl}naphthalene-2-carboxamide941923-31-5C21H17N3O2
- 3-(5-(Pyridin-3-yl)-5,10b-dihydro-1H-benzo[e]pyrazolo[1,5-c][1,3]oxazin-2-yl)phenol899984-75-9C21H17N3O2
- N-((5-Phenylisoxazol-3-yl)methyl)-4-(1H-pyrrol-1-yl)benzamide1210664-96-2C21H17N3O2
- N-(5-Cyano-2-methylphenyl)-4-(pyridin-2-ylmethoxy)benzamide1126369-40-1C21H17N3O2
- N-Benzyl-N-(cyanomethyl)-2-oxo-6-phenyl-1,2-dihydropyridine-3-carboxamide1280926-65-9C21H17N3O2
- 5-(7-(Benzyloxy)quinolin-4-yloxy)pyridin-2-amine1221443-54-4C21H17N3O2
- N-(3-(Pyridin-2-yloxy)benzyl)-1H-indole-3-carboxamide1796971-11-3C21H17N3O2
- 4-[4-(Benzyloxy)phenyl]-6-(furan-2-yl)pyrimidin-2-amine1354929-97-7C21H17N3O2
- N-((2-(Furan-2-yl)pyridin-4-yl)methyl)-4-(1H-pyrrol-1-yl)benzamide2034439-16-0C21H17N3O2
- N-((2-(Furan-2-yl)pyridin-3-yl)methyl)-4-(1H-pyrrol-1-yl)benzamide2034565-56-3C21H17N3O2
- 3-(3-(Quinolin-8-yloxy)pyrrolidine-1-carbonyl)benzonitrile1904200-71-0C21H17N3O2
- 4-(3-(Quinolin-2-yloxy)pyrrolidine-1-carbonyl)benzonitrile2034319-61-2C21H17N3O2
- N-((6-(Furan-3-yl)pyridin-3-yl)methyl)-4-(1H-pyrrol-1-yl)benzamide2177366-38-8C21H17N3O2
- N-((5-(Furan-2-yl)pyridin-3-yl)methyl)-4-(1H-pyrrol-1-yl)benzamide2320924-15-8C21H17N3O2
- N-((3-(Furan-3-yl)pyrazin-2-yl)methyl)-2-(naphthalen-1-yl)acetamide2034500-68-8C21H17N3O2
- 3-(4-Nitrophenyl)-1-phenyl-2-propen-1-one 2-phenylhydrazone13736-27-1C21H17N3O2
- (E)-2-(3-(2-(5-Methylfuran-2-yl)vinyl)-1-phenyl-1H-1,2,4-triazol-5-yl)phenol701240-54-2C21H17N3O2
- 2-(5-(Pyridin-2-yl)-5,10b-dihydro-1H-benzo[e]pyrazolo[1,5-c][1,3]oxazin-2-yl)phenol899728-82-6C21H17N3O2
- 4-(5-(Pyridin-4-yl)-5,10b-dihydro-1H-benzo[e]pyrazolo[1,5-c][1,3]oxazin-2-yl)phenol899984-81-7C21H17N3O2
- 4-(5-(Pyridin-3-yl)-5,10b-dihydro-1H-benzo[e]pyrazolo[1,5-c][1,3]oxazin-2-yl)phenol899973-59-2C21H17N3O2
- (S)-N-(2-(4-Phenyl-4,5-dihydrooxazol-2-yl)phenyl)picolinamide2411327-94-9C21H17N3O2
- 5-Anilino-2-benzyl-3-methyl-2H-indazole-4,7-dione53486-05-8C21H17N3O2
- 2-Cyano-3-(4-ethoxyphenyl)-N-(quinolin-5-yl)prop-2-enamide717116-96-6C21H17N3O2
- 4-Ethyl-N-(3-[1,3]oxazolo[4,5-b]pyridin-2-ylphenyl)benzamide839693-81-1C21H17N3O2
- 4-Ethyl-N-(2-pyridin-4-yl-1,3-benzoxazol-5-yl)benzamide839693-86-6C21H17N3O2
- N-[[3-(3-Methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]naphthalene-1-carboxamide878995-43-8C21H17N3O2
- N-Methyl-N-[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]naphthalene-1-carboxamide899540-94-4C21H17N3O2
- Ethyl 5,7-diphenylpyrazolo[1,5-a]pyrimidine-2-carboxylate632359-89-8C21H17N3O2
- 1-(1H-Indol-3-yl)-2-(1,3,4,5-tetrahydro-2H-pyrido[4,3-b]indol-2-yl)-1,2-ethanedione870471-41-3C21H17N3O2
- 1-[(4-Aminophenyl)amino]-4-(methylamino)-9,10-anthracenedione4221-67-4C21H17N3O2
- 1-[3-(Pyridin-2-ylmethoxymethyl)-phenyl]-1H-benzoimidazole-5-carbaldehyde913532-47-5C21H17N3O2
- N-(2-(2-Phenylpyrimidin-5-yl)ethyl)benzofuran-2-carboxamide2034512-64-4C21H17N3O2
- (3Z)-N-(1-Cyanoethyl)-3-(furan-2-ylmethylidene)-1,2-dihydrocyclopenta[b]quinoline-9-carboxamide1808496-29-8C21H17N3O2
- N-{[5-(Furan-3-yl)pyridin-3-yl]methyl}-4-(1H-pyrrol-1-yl)benzamide2097861-90-8C21H17N3O2
- 1-Amino-4-[2-(4-methylphenyl)hydrazinyl]anthracene-9,10-dione669698-89-9C21H17N3O2
- N-Methyl-N-[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]naphthalene-2-carboxamide924979-24-8C21H17N3O2
- 1,2,4-Triazolidine-3,5-dione, 4-[3-(1-pyrenyl)propyl]-138615-27-7C21H17N3O2
- Ethyl 4,7-diphenyl-3H-imidazo[4,5-c]pyridine-6-carboxylate85731-50-6C21H17N3O2
- N-[4-[(3-Cyclopropyl-2-pyridinyl)oxy]phenyl]-2-benzoxazolamine1227174-18-6C21H17N3O2
- 2-(1-Methylidene-3-oxo-2,3-dihydro-1H-isoindol-2-yl)-N-(quinolin-3-yl)propanamide1323056-03-6C21H17N3O2
- N-(2-Hydroxy-2-(naphthalen-1-yl)ethyl)quinoxaline-2-carboxamide1351613-49-4C21H17N3O2
- 4-(5-Methoxy-7-phenylimidazo[1,2-a]pyridin-3-yl)benzamide1207839-70-0C21H17N3O2
- 4-[3-(2-Methoxyphenyl)-1H-pyrrolo[2,3-b]pyridin-5-yl]benzamide875638-61-2C21H17N3O2
- Ethyl 6-[1,1'-biphenyl]-4-yl-1H-pyrazolo[3,4-b]pyridine-4-carboxylate1244020-96-9C21H17N3O2
- Phenyl (2,9-dimethyl-1,10-phenanthrolin-5-yl)carbamate376649-62-6C21H17N3O2
- N-Benzyl-2-(5-(naphthalen-1-yl)-1,2,4-oxadiazol-3-yl)acetamide1797237-13-8C21H17N3O2
- 5-[5-(3-Phenylpropyl)-1,2,4-oxadiazol-3-yl]-8-quinolinecarboxaldehyde1590378-70-3C21H17N3O2
- 6-Methoxy-N,N-diphenyl-1H-indazole-3-carboxamide1649446-05-8C21H17N3O2
- 2-((4-Benzylphenoxy)methyl)pyrido[3,4-d]pyrimidin-4(3H)-one1797982-47-8C21H17N3O2
- 5-Anilino-1,6-dimethyl-3-phenyl-1H-indazole-4,7-dione63190-34-1C21H17N3O2
- 3-[3-(2,5-Dioxo-1-phenylpyrrolidin-3-yl)-1H-indol-1-yl]propanenitrile61123-27-1C21H17N3O2
- Methyl [6-(4-phenylpyrimidin-2-yl)-1H-indol-1-yl]acetate137275-54-8C21H17N3O2
- 4-Methyl-N-(4-methyl-3-nitrophenyl)acridin-9-amine655238-80-5C21H17N3O2
- 6-Methyl-2-(1-methyl-1H-pyrrol-2-yl)-4-(4-nitrophenyl)quinoline1058062-78-4C21H17N3O2
- 2-Phenyl-5-(quinolin-4-yl)-octahydropyrrolo[3,4-c]pyrrole-1,3-dione2741893-73-0C21H17N3O2
- Benzamide, 4-acetyl-N-[4-(2-phenyldiazenyl)phenyl]-403846-66-2C21H17N3O2
- Benzyl N-benzyl-N-(5-cyanopyridin-2-yl)carbamate2680836-19-3C21H17N3O2
- (9H-Fluoren-9-yl)methyl N-(5-ethenylpyrimidin-2-yl)carbamate2770556-11-9C21H17N3O2
- (9H-Fluoren-9-yl)methyl N-(3-ethynyl-1-methyl-1H-pyrazol-5-yl)carbamate2770533-39-4C21H17N3O2
- (9H-Fluoren-9-yl)methyl N-[1-(prop-2-yn-1-yl)-1H-pyrazol-4-yl]carbamate2770529-60-5C21H17N3O2
- (9H-Fluoren-9-yl)methyl N-(4-ethynyl-1-methyl-1H-pyrazol-5-yl)carbamate2770498-05-8C21H17N3O2
- 1H-Pyrrolo[2,3-b]pyridine-3-carboxamide,2-hydroxy-1-phenyl-N-(phenylmethyl)-136257-20-0C21H17N3O2
- 1H-Pyrazolo[4,3-c]pyridine-6-carboxylic acid,1,4-diphenyl-,ethyl ester137368-84-4C21H17N3O2
Frequently asked questions
What is the molar mass of C21H17N3O2?
The molar mass of C21H17N3O2 is 343.39 g/mol, calculated from standard atomic weights for 21 carbon atoms, 17 hydrogen atoms, 3 nitrogen atoms and 2 oxygen atoms. The monoisotopic mass is 343.1321 Da.
How many compounds have the formula C21H17N3O2?
CompoundList lists 187 compounds with the molecular formula C21H17N3O2, including 1-Ethyl-N-(naphthalen-1-yl)-2-oxo-1,2-dihydro-1,8-naphthyridine-3-carboxamide, 2-Methyl-N-(2-methyl-4-[1,3]oxazolo[4,5-b]pyridin-2-ylphenyl)benzamide, 5,7-Diphenyl-pyrazolo[1,5-a]pyrimidine-3-carboxylic Acid Ethyl Ester. 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 C21H17N3O2?
C21H17N3O2 has a degree of unsaturation of 15. 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.