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 1 to 100 of 187 compounds
2-Amino-5-oxo-7-phenyl-4-pyridin-3-yl-4,6,7,8-tetrahydrochromene-3-carbonitrile
CAS 300836-03-7C21H17N3O2
2-(5-Methylfuran-2-yl)-N-(5-methylpyridin-2-yl)quinoline-4-carboxamide
CAS 313386-30-0C21H17N3O2
(E)-1,5-Dimethyl-4-((4-oxonaphthalen-1(4H)-ylidene)amino)-2-phenyl-1H-pyrazol-3(2H)-one
CAS 86938-63-8C21H17N3O2
5-(3-Nitrophenyl)-1,3-diphenyl-4,5-dihydro-1H-pyrazole
CAS 6969-04-6C21H17N3O2
![N-[3-(1H-Benzimidazol-2-yl)phenyl]-2-phenoxyacetamide chemical structure, C21H17N3O2, CAS 380586-85-6](/s/FVIMXSCBRNZFGF-UHFFFAOYSA-N.svg)
N-[3-(1H-Benzimidazol-2-yl)phenyl]-2-phenoxyacetamide
CAS 380586-85-6C21H17N3O2
4-(4-((4-Methoxyphenyl)amino)phthalazin-1-yl)phenol
CAS 496773-16-1C21H17N3O2
![8-(2-Furyl)-2-methyl-3-phenyl-8,9-dihydropyrazolo[1,5-a]quinazolin-6(7H)-one chemical structure, C21H17N3O2, CAS 726200-00-6](/s/HEYHTKDNMRRVIW-UHFFFAOYSA-N.svg)
8-(2-Furyl)-2-methyl-3-phenyl-8,9-dihydropyrazolo[1,5-a]quinazolin-6(7H)-one
CAS 726200-00-6C21H17N3O2
2-(4-((4-Methoxyphenyl)amino)quinazolin-2-yl)phenol
CAS 381183-13-7C21H17N3O2
![6-Cyano-9-(diethylamino)-5H-benzo[a]phenoxazin-5-one chemical structure, C21H17N3O2, CAS 128119-95-9](/s/DOIVGWIGBQTTHP-UHFFFAOYSA-N.svg)
6-Cyano-9-(diethylamino)-5H-benzo[a]phenoxazin-5-one
CAS 128119-95-9C21H17N3O2
![2-Methoxy-N-(2-phenylimidazo[1,2-a]pyridin-3-yl)benzamide chemical structure, C21H17N3O2, CAS 361996-71-6](/s/PGNHQFVCQJTROY-UHFFFAOYSA-N.svg)
2-Methoxy-N-(2-phenylimidazo[1,2-a]pyridin-3-yl)benzamide
CAS 361996-71-6C21H17N3O2
![N-[3-(1H-Benzimidazol-2-yl)phenyl]-4-methoxybenzamide chemical structure, C21H17N3O2, CAS 477493-04-2](/s/JPVZXDNGPVCEIB-UHFFFAOYSA-N.svg)
N-[3-(1H-Benzimidazol-2-yl)phenyl]-4-methoxybenzamide
CAS 477493-04-2C21H17N3O2
Carbamic acid, (4-(9-acridinylamino)phenyl)-, methyl ester
CAS 64990-16-5C21H17N3O2
7-((2-Hydroxyphenyl)(pyridin-2-ylamino)methyl)quinolin-8-ol
CAS 307341-66-8C21H17N3O2
![(E)-N-[5-(1H-Benzimidazol-2-yl)-2-methylphenyl]-3-(furan-2-yl)prop-2-enamide chemical structure, C21H17N3O2, CAS 1164541-59-6](/s/LWFGRDLTULALIS-ZHACJKMWSA-N.svg)
(E)-N-[5-(1H-Benzimidazol-2-yl)-2-methylphenyl]-3-(furan-2-yl)prop-2-enamide
CAS 1164541-59-6C21H17N3O2
![N-(2,8-Dimethyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl)-1-naphthamide chemical structure, C21H17N3O2, CAS 897616-97-6](/s/SRXMQAKBSMYDRQ-UHFFFAOYSA-N.svg)
N-(2,8-Dimethyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl)-1-naphthamide
CAS 897616-97-6C21H17N3O2
![N-(2,9-Dimethyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl)-1-naphthamide chemical structure, C21H17N3O2, CAS 897617-41-3](/s/DGFKCCDWWTYYRX-UHFFFAOYSA-N.svg)
N-(2,9-Dimethyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl)-1-naphthamide
CAS 897617-41-3C21H17N3O2
![1-Benzyl-3-methyl-4-phenyl-1H-pyrazolo[3,4-b]pyridine-6-carboxylic acid chemical structure, C21H17N3O2, CAS 941120-75-8](/s/MVQQNZKQWJFBKP-UHFFFAOYSA-N.svg)
1-Benzyl-3-methyl-4-phenyl-1H-pyrazolo[3,4-b]pyridine-6-carboxylic acid
CAS 941120-75-8C21H17N3O2
![4-{[4-(Benzyloxy)phenyl]amino}quinazolin-6-ol chemical structure, C21H17N3O2, CAS 179246-81-2](/s/BURBAFXROHRDAV-UHFFFAOYSA-N.svg)
4-{[4-(Benzyloxy)phenyl]amino}quinazolin-6-ol
CAS 179246-81-2C21H17N3O2
3,4-Dimethyl-N-(2-pyridin-4-yl-1,3-benzoxazol-5-yl)benzamide
CAS 380905-64-6C21H17N3O2
![N-(4-Imidazo[1,2-a]pyridin-2-ylphenyl)-2-methoxybenzamide chemical structure, C21H17N3O2, CAS 352329-81-8](/s/DXDQAQJNFUBNPQ-UHFFFAOYSA-N.svg)
N-(4-Imidazo[1,2-a]pyridin-2-ylphenyl)-2-methoxybenzamide
CAS 352329-81-8C21H17N3O2
![N-[2-(3,4-Dimethylphenyl)-1,3-benzoxazol-5-yl]pyridine-3-carboxamide chemical structure, C21H17N3O2, CAS 433707-02-9](/s/GMVAPNWKQNTGTC-UHFFFAOYSA-N.svg)
N-[2-(3,4-Dimethylphenyl)-1,3-benzoxazol-5-yl]pyridine-3-carboxamide
CAS 433707-02-9C21H17N3O2
2-(4-Methoxyphenyl)-3-(3-methylpyridin-2-yl)quinazolin-4-one
CAS 380591-57-1C21H17N3O2
![2-Methyl-N-[2-methyl-5-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenyl]benzamide chemical structure, C21H17N3O2, CAS 312633-05-9](/s/WXGQMMZZKDFUQJ-UHFFFAOYSA-N.svg)
2-Methyl-N-[2-methyl-5-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenyl]benzamide
CAS 312633-05-9C21H17N3O2
![3,4-Dimethyl-N-[4-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenyl]benzamide chemical structure, C21H17N3O2, CAS 353465-32-4](/s/ONDBTMPHFORSJE-UHFFFAOYSA-N.svg)
3,4-Dimethyl-N-[4-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenyl]benzamide
CAS 353465-32-4C21H17N3O2
- 2-[[4-(Pyridin-4-ylmethyl)anilino]methyl]isoindole-1,3-dione306320-64-9C21H17N3O2
- 3-Methyl-N-[2-methyl-4-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenyl]benzamide709626-88-0C21H17N3O2
- N-[2-Methyl-5-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenyl]-2-phenylacetamide347339-78-0C21H17N3O2
- 4-Methyl-N-[2-methyl-3-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenyl]benzamide332151-17-4C21H17N3O2
- (5E)-3-Phenyl-5-{[1-(prop-2-en-1-yl)-1H-indol-3-yl]methylidene}imidazolidine-2,4-dione444778-40-9C21H17N3O2
- 4-Methyl-N-(4-[1,3]oxazolo[4,5-b]pyridin-2-ylbenzyl)benzamide895094-51-6C21H17N3O2
- 1'-(Phenylmethyl)-2'-spiro[1,2-dihydro-4,1,2-benzoxadiazine-3,3'-indole]one851176-09-5C21H17N3O2
- 2-(5-Methylfuran-2-yl)-N-(6-methylpyridin-2-yl)quinoline-4-carboxamide560090-89-3C21H17N3O2
- N-[5-(2,5-Dimethylphenyl)-1,3,4-oxadiazol-2-yl]naphthalene-1-carboxamide891123-37-8C21H17N3O2
- N-[4-(1H-Benzimidazol-2-yl)phenyl]-2-methoxybenzamide476633-97-3C21H17N3O2
- {Imidazo[1,2-a]pyridin-2-yl}methyl 1H,2H,3H-cyclopenta[b]quinoline-9-carboxylate1090542-77-0C21H17N3O2
- N-[2-(1H-1,3-Benzodiazol-2-yl)phenyl]-2-phenoxyacetamide476285-39-9C21H17N3O2
- 1 suppliers1-Methyl-5-(2'-methyl-[1,1'-biphenyl]-4-yl)-1H-benzo[d][1,2,3]triazole-7-carboxylic acid1623416-31-8C21H17N3O2
- 5-(4-Nitrophenyl)-1,3-diphenyl-4,5-dihydro-1H-pyrazole15115-37-4C21H17N3O2
- Urea,N-[4-(2,3-dihydro-1-oxo-1H-isoindol-4-yl)phenyl]-n'-phenyl-765948-63-8C21H17N3O2
- 2-Naphthalen-1-yl-N-[(4-oxo-3H-phthalazin-1-yl)methyl]acetamide899745-60-9C21H17N3O2
- LON-WEI-b2874fec-252060609-37-0C21H17N3O2
- LON-WEI-b2874fec-182060609-38-1C21H17N3O2
- (7bR)-1,2,8,8a-Tetrahydro-2-(1H-indol-2-ylcarbonyl)-7-methylcyclopropa(c)pyrrolo(3,2-e)indol-4(5H)-one110352-06-2C21H17N3O2
- 3-Methyl-2-(4-phenoxyphenyl)-3H-benzo[d]imidazole-5-carboxamide883559-97-5C21H17N3O2
- 1-(4-Nitrophenyl)-3,5-diphenyl-4,5-dihydro-1H-pyrazole10252-45-6C21H17N3O2
- 12,12-Dimethyl-3,11,15-triazapentacyclo[12.8.0.02,11.04,9.016,21]docosa-1(14),2,4,6,8,16,18,20-octaene-10,22-dione66665-73-4C21H17N3O2
- N-(3-Imidazo[1,2-a]pyridin-2-ylphenyl)-3-methoxybenzamide312519-85-0C21H17N3O2
- 2-(4-Nitrophenyl)-4-phenyl-2,3-dihydro-1H-1,5-benzodiazepine75220-79-0C21H17N3O2
- 4-{[4-(4-Methoxyphenyl)phthalazin-1-yl]amino}phenol364600-57-7C21H17N3O2
- 3-(4-Nitrophenyl)-1,5-diphenyl-4,5-dihydro-1H-pyrazole6969-06-8C21H17N3O2
- 4-{[(2,4-Dimethyl-8-quinolinyl)amino]methylene}-2-phenyl-1,3-oxazol-5(4H)-one309936-97-8C21H17N3O2
- 4-Hydroxy-1-phenyl-3-[2-(pyridin-2-yl)ethyl]-1,8-naphthyridin-2(1H)-one89108-76-9C21H17N3O2
- 2-(4-Methoxyphenyl)-3-(4-methylpyridin-2-yl)quinazolin-4-one381702-60-9C21H17N3O2
- N-[2-(1H-Benzimidazol-2-yl)phenyl]-3-methoxybenzamide313275-15-9C21H17N3O2
- [2-(Benzotriazol-2-yl)-4-methylphenyl] 4-methylbenzoate300689-78-5C21H17N3O2
- 3-Methyl-N-[2-methyl-3-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenyl]benzamide5756-79-6C21H17N3O2
- N-[1-(4-Methoxyphenyl)benzimidazol-5-yl]benzamide337925-58-3C21H17N3O2
- 4-Methoxy-N-(2-phenylimidazo[1,2-a]pyridin-3-yl)benzamide477489-46-6C21H17N3O2
- 1-Benzyl-3-methyl-6-phenyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid1011398-57-4C21H17N3O2
- N-[1-(2-Methoxyphenyl)benzimidazol-5-yl]benzamide337925-59-4C21H17N3O2
- 2-Amino-4-(benzo[d][1,3]dioxol-5-yl)-6-(2,5-dimethylphenyl)nicotinonitrile331981-35-2C21H17N3O2
- 1-(3,5-Dimethoxyphenyl)-3-methylpyrido[1,2-a]benzimidazole-4-carbonitrile730950-08-0C21H17N3O2
- N-(4-(Imidazo[1,2-a]pyridin-2-yl)phenyl)-2-phenoxyacetamide887198-16-5C21H17N3O2
- N-(6-Methylisoxazolo[5,4-b]pyridin-3-yl)-2,2-diphenylacetamide1105245-35-9C21H17N3O2
- 3-(4-(1,3-Dioxoisoindolin-2-yl)butyl)-1H-indole-5-carbonitrile2386861-43-2C21H17N3O2
- 2-[7-(Pyridin-4-yl)-8-oxa-5,6-diazatricyclo[7.4.0.0^{2,6}]trideca-1(9),4,10,12-tetraen-4-yl]phenol896618-77-2C21H17N3O2
- N-(2-(1H-Benzo[d]imidazol-2-yl)phenyl)-4-methoxybenzamide325979-26-8C21H17N3O2
- N-[2-(4-Ethylphenyl)-1,3-benzoxazol-5-yl]pyridine-3-carboxamide532961-14-1C21H17N3O2
- 2-(4-Methoxyphenyl)-3-(6-methylpyridin-2-yl)quinazolin-4-one381705-32-4C21H17N3O2
- 4-Methyl-N-[2-methyl-5-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenyl]benzamide380875-31-0C21H17N3O2
- N-[2-Methyl-5-(6-methyl-1,3-benzoxazol-2-yl)phenyl]pyridine-3-carboxamide334502-21-5C21H17N3O2
- Benzenamine, N-[(9-ethyl-9H-carbazol-3-yl)methylene]-4-nitro-124190-73-4C21H17N3O2
- 4-(4-Isopropylphenyl)-1H-benzofuro[3,2-b]pyrazolo[4,3-e]pyridin-7-ol1574354-24-7C21H17N3O2
- 2-[7-(Pyridin-3-yl)-8-oxa-5,6-diazatricyclo[7.4.0.0^{2,6}]trideca-1(9),4,10,12-tetraen-4-yl]phenol896618-78-3C21H17N3O2
- N-[2-(1H-1,3-Benzodiazol-2-yl)phenyl]-2-methoxybenzamide313403-81-5C21H17N3O2
- N-[4-(5-Ethyl-1,3-benzoxazol-2-yl)phenyl]pyridine-3-carboxamide431907-45-8C21H17N3O2
- 3-Methyl-N-[2-methyl-5-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenyl]benzamide380869-18-1C21H17N3O2
- 3-Methoxy-N-(2-phenylimidazo[1,2-a]pyridin-3-yl)benzamide332384-11-9C21H17N3O2
- 3,5-Dimethyl-N-(2-pyridin-3-yl-1,3-benzoxazol-5-yl)benzamide708239-92-3C21H17N3O2
- 4-((4-Phenoxyanilino)methyl)-1(2H)-phthalazinone305368-10-9C21H17N3O2
- 3-Methyl-1-(4-methylphenyl)-6-phenyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid749216-18-0C21H17N3O2
- 1-Phenyl-1H-indole-2,3-dione 3-[N-(4-methoxyphenyl)hydrazone]303984-70-5C21H17N3O2
- N-(2-Methyl-4-[1,3]oxazolo[4,5-b]pyridin-2-ylphenyl)-2-phenylacetamide839687-74-0C21H17N3O2
- 2-(2-Nitrophenyl)-4-phenyl-2,3-dihydro-1H-1,5-benzodiazepine86232-92-0C21H17N3O2
- 5,7-Di(furan-2-yl)-2-methyl-3-phenyl-6,7-dihydropyrazolo[1,5-a]pyrimidine879044-00-5C21H17N3O2
- Bicarbamimide, 2-(diphenylmethyl)-3-phenyl-34877-22-0C21H17N3O2
- 4-Ethyl-N-(2-pyridin-3-yl-1,3-benzoxazol-5-yl)benzamide767316-46-1C21H17N3O2
- 4-Ethyl-N-(4-[1,3]oxazolo[4,5-b]pyridin-2-ylphenyl)benzamide839693-32-2C21H17N3O2
- 3-(4-Methoxyphenyl)-3,4-dihydrobenzimidazo[2,1-b]quinazolin-1(2H)-one777867-41-1C21H17N3O2
- 2-[1-(2-Cyanophenyl)-2,5-dimethyl-1H-pyrrol-3-yl]-2-oxo-N-phenylacetamide866144-06-1C21H17N3O2
- Ethyl (2Z)-2-cyano-2-(2,4-diphenyl-1H-pyrimidin-6-ylidene)acetate5581-92-0C21H17N3O2
- N-(4-Methyl-3-phenyl-3H-1,5-benzodiazepin-2-yl)furan-2-carboxamide892694-28-9C21H17N3O2
- 3-(3-Methylbenzyl)-1-phenylpyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione931585-29-4C21H17N3O2
- 3-(5-(Pyridin-4-yl)-5,10b-dihydro-1H-benzo[e]pyrazolo[1,5-c][1,3]oxazin-2-yl)phenol899729-00-1C21H17N3O2
- (7,8-Dihydropyrido[4,3-d]pyrimidin-6(5H)-yl)(9H-xanthen-9-yl)methanone1797321-51-7C21H17N3O2
- Cyclopropa(c)pyrrolo(3,2-e)indol-4(5H)-one, 1,2,8,8a-tetrahydro-2-(1H-indol-2-ylcarbonyl)-7-methyl-, (±)-104636-99-9C21H17N3O2
- 2,4-Dimethyl-N-[3-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenyl]benzamide673444-38-7C21H17N3O2
- N-[[3-(4-Methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]naphthalene-1-carboxamide838866-40-3C21H17N3O2
- 3-(1H-Benzimidazol-2-yl)-N-(1,3-benzodioxol-5-ylmethyl)aniline881447-78-5C21H17N3O2
- N-(2-Cyanophenyl)-1-[(3-methylphenyl)methyl]-2-oxo-1,2-dihydropyridine-3-carboxamide946247-30-9C21H17N3O2
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 2-Amino-5-oxo-7-phenyl-4-pyridin-3-yl-4,6,7,8-tetrahydrochromene-3-carbonitrile, 2-(5-Methylfuran-2-yl)-N-(5-methylpyridin-2-yl)quinoline-4-carboxamide, (E)-1,5-Dimethyl-4-((4-oxonaphthalen-1(4H)-ylidene)amino)-2-phenyl-1H-pyrazol-3(2H)-one. 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.