Molecular formula
C21H17NO2
131 compounds have this formula on CompoundList.
- Molar mass
- 315.37g/mol
- Monoisotopic mass
- 315.1259Da
- Atoms
- 41
- Elements
- 4
- Rings plus double bonds
- 14
The formula C21H17NO2 describes a molecule made of 21 carbon atoms, 17 hydrogen atoms, 1 nitrogen atom 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 × 2179.98%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 175.43%1.008 × 17 = 17.136 g/mol
- N Nitrogen × 14.44%14.007 × 1 = 14.007 g/mol
- O Oxygen × 210.15%15.999 × 2 = 31.998 g/mol
Look up another formula
Compounds with the formula C21H17NO2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 131 compounds
![5H-Indeno[1,2-b]pyridin-5-one, 3-acetyl-1,4-dihydro-2-methyl-4-phenyl- chemical structure, C21H17NO2, CAS 26576-80-7](/s/HPIIQBIZUYHMQI-UHFFFAOYSA-N.svg)
5H-Indeno[1,2-b]pyridin-5-one, 3-acetyl-1,4-dihydro-2-methyl-4-phenyl-
CAS 26576-80-7C21H17NO2
![5-(Furan-2-yl)-2,3,5,6-tetrahydro-1H-benzo[a]phenanthridin-4-one chemical structure, C21H17NO2, CAS 325763-06-2](/s/XBYFNXHXLBSRSE-UHFFFAOYSA-N.svg)
5-(Furan-2-yl)-2,3,5,6-tetrahydro-1H-benzo[a]phenanthridin-4-one
CAS 325763-06-2C21H17NO2
2,6-Bis(phenylmethoxy)benzonitrile
CAS 94088-47-8C21H17NO2
N-(4-Benzoylphenyl)-3-methylbenzamide
CAS 306325-32-6C21H17NO2
N-(9H-Fluoren-2-yl)-4-methoxybenzamide
CAS 5772-96-3C21H17NO2
![N-Benzyl-2-naphtho[2,1-b]furan-1-ylacetamide chemical structure, C21H17NO2, CAS 616214-89-2](/s/QBYDAKSVDNWPRY-UHFFFAOYSA-N.svg)
N-Benzyl-2-naphtho[2,1-b]furan-1-ylacetamide
CAS 616214-89-2C21H17NO2
N-Benzyl-9H-xanthene-9-carboxamide
CAS 349401-26-9C21H17NO2
3-((4-Methylphenyl)methylidene)-1H,2H,3H-cyclopenta(b)quinoline-9-carboxylic acid
CAS 380574-24-3C21H17NO2
2-(4-Benzoylphenyl)-2-phenylacetamide
CAS 338791-83-6C21H17NO2
RefChem:357185
CAS 3532-71-6C21H17NO2
4-(Phenylmethylidene)-1,2,3,4-tetrahydroacridine-9-carboxylic acid
CAS 22320-39-4C21H17NO2
4-Methyl-N-(9H-xanthen-9-yl)benzamide
CAS 6319-64-8C21H17NO2
![N-(4-Acetylphenyl)[1,1'-biphenyl]-4-carboxamide chemical structure, C21H17NO2, CAS 348601-63-8](/s/RTOMUFLVUUQGRB-UHFFFAOYSA-N.svg)
N-(4-Acetylphenyl)[1,1'-biphenyl]-4-carboxamide
CAS 348601-63-8C21H17NO2
N-(2-Oxo-1,2-diphenyl-ethyl)benzamide
CAS 6942-03-6C21H17NO2
4-Benzylidene-1,2,3,4-tetrahydro-acridine-9-carboxylic acid
C21H17NO2
![N-(3-Acetylphenyl)-[1,1'-biphenyl]-4-carboxamide chemical structure, C21H17NO2, CAS 316138-75-7](/s/ZJGOJDXDWVWFHX-UHFFFAOYSA-N.svg)
N-(3-Acetylphenyl)-[1,1'-biphenyl]-4-carboxamide
CAS 316138-75-7C21H17NO2
(4E)-4-Benzylidene-2,3-dihydro-1H-acridine-9-carboxylic acid
C21H17NO2
![2-(Naphthalen-1-yl)-3a,4,7,7a-tetrahydro-1H-spiro[4,7-methanoisoindole-8,1'-cyclopropane]-1,3(2H)-dione chemical structure, C21H17NO2, CAS 342417-54-3](/s/FZFDSNPOONNEQV-UHFFFAOYSA-N.svg)
2-(Naphthalen-1-yl)-3a,4,7,7a-tetrahydro-1H-spiro[4,7-methanoisoindole-8,1'-cyclopropane]-1,3(2H)-dione
CAS 342417-54-3C21H17NO2
3-(3-Methylanilino)-3-phenyl-2-benzofuran-1-one
CAS 5403-59-8C21H17NO2
N-(3-Methylphenyl)-9H-xanthene-9-carboxamide
CAS 349117-18-6C21H17NO2
![6-Allyl-6-phenyl-pyrrolo[2,1-d][1,5]benzoxazepin-7-one chemical structure, C21H17NO2, CAS 177578-88-0](/s/ZKNFDJZITOUUHS-UHFFFAOYSA-N.svg)
6-Allyl-6-phenyl-pyrrolo[2,1-d][1,5]benzoxazepin-7-one
CAS 177578-88-0C21H17NO2
(E)-(2-((2-Hydroxybenzylidene)amino)-5-methylphenyl)(phenyl)methanone
CAS 324061-76-9C21H17NO2
2(1H)-Pyridinone, 1-(2-((1,1'-biphenyl)-4-ylcarbonyl)-2-propenyl)-
CAS 108664-43-3C21H17NO2
3-Morpholinobenzanthrone
CAS 299927-47-2C21H17NO2
- (4R)-4,5,5-Triphenyl-1,3-oxazolidin-2-one156481-74-2C21H17NO2
- 3-Hydroxy-2-(2-methylphenyl)-3-phenylisoindolin-1-one3532-73-8C21H17NO2
- Benzamide, N-(2-oxo-2-phenylethyl)-N-phenyl-54901-99-4C21H17NO2
- N-(9H-Fluoren-2-yl)-2-methoxybenzamide340974-28-9C21H17NO2
- N-(3-Acetylphenyl)-3-(1-naphthyl)acrylamide328026-63-7C21H17NO2
- 3-(Dibenzofuran-3-ylamino)-1-phenylpropan-1-one296790-09-5C21H17NO2
- 2-(1H-Indol-3-ylmethylidene)-5-phenylcyclohexane-1,3-dione331665-61-3C21H17NO2
- Succinimide, 2-benzyl-N-2-naphthyl-102469-36-3C21H17NO2
- 2-Benzoyl-N-(phenylmethyl)benzamide60286-02-4C21H17NO2
- 2-(4-Methoxyphenyl)imino-1,2-diphenylethanone4198-96-3C21H17NO2
- Acridine, 9,10-dihydro-10-(4-methoxybenzoyl)-63949-13-3C21H17NO2
- N-(2,3-Dimethylphenyl)naphtho[2,1-b]furan-2-carboxamide431882-50-7C21H17NO2
- 9-Acridinecarboxylic acid, 9,10-dihydro-10-methyl-, phenyl ester161006-09-3C21H17NO2
- N-Dibenzofuran-3-yl-3-phenylpropanamide332026-21-8C21H17NO2
- N-(9H-Fluoren-2-yl)-3-methoxybenzamide303141-62-0C21H17NO2
- 5-(Furan-2-yl)-3,4,5,6-tetrahydro-2H-benzo[a]phenanthridin-1-one302802-05-7C21H17NO2
- 2-Naphthalenol, 1-(3-(phenylimino)-1-propenyl)-, acetate (ester)96550-67-3C21H17NO2
- (2E)-1-(10,11-Dihydro-5H-dibenzo[b,f]azepin-5-yl)-3-(furan-2-yl)prop-2-en-1-one309283-39-4C21H17NO2
- 1-(5-Hydroxy-2-methyl-1-naphthalen-1-ylindol-3-yl)ethanone342388-41-4C21H17NO2
- 1-(2-Methyl-1H-indol-3-yl)-2-(naphthalen-1-yloxy)ethanone578722-17-5C21H17NO2
- 1H-Naphtho(2,1-b)pyran-1-one, 3-(methyl(phenylmethyl)amino)-52053-75-5C21H17NO2
- (S)-4,5,5-Triphenyloxazolidin-2-one352534-92-0C21H17NO2
- 2,6-Bis-benzyloxy-3-ethynyl-pyridine2152673-69-1C21H17NO2
- (3R,4R)-rel-1,2,3,4-Tetrahydrodibenz(c,h)acridine-3,4-diol124508-39-0C21H17NO2
- 2-Benzoyl-N-(4-methylphenyl)benzamide7143-48-8C21H17NO2
- Benzamide, N-benzoyl-N-(phenylmethyl)-19264-38-1C21H17NO2
- N-Methyl-2-naphtho[2,1-b]furan-1-yl-N-phenylacetamide616203-24-8C21H17NO2
- 1-[2-(Naphthalen-1-yloxy)ethyl]-1H-indole-3-carbaldehyde862652-44-6C21H17NO2
- (E)-3-(2-Hydroxyanilino)-1-(4-phenylphenyl)prop-2-en-1-one364749-47-3C21H17NO2
- Ethyl 9-phenyl-9H-carbazole-3-carboxylate1862216-82-7C21H17NO2
- Anti-inflammatory agent 793057738-35-6C21H17NO2
- 2-Phenyl-N-(9H-xanthen-9-yl)ethanimidic acid6319-63-7C21H17NO2
- Ethanone, 2,2'-(2,6-pyridinediyl)bis[1-phenyl-51425-17-3C21H17NO2
- N-(3,4-Dimethylphenyl)naphtho[2,1-b]furan-2-carboxamide430470-18-1C21H17NO2
- (E)-3-(4-Phenoxyanilino)-1-phenylprop-2-en-1-one364381-50-0C21H17NO2
- 2-Benzoyl-1-(5-methyl-2-furyl)-1,2-dihydroisoquinoline34579-55-0C21H17NO2
- N-Dibenzofuran-3-yl-2,4-dimethylbenzamide673494-09-2C21H17NO2
- N-(4-Methylphenyl)-2-(naphtho[2,1-b]furan-1-yl)acetamide616203-62-4C21H17NO2
- 1 suppliersBenzaldehyde, 4,4'-[(4-methylphenyl)imino]bis-122112-54-3C21H17NO2
- 2-Azetidinone, 3-phenoxy-1,4-diphenyl-69187-06-0C21H17NO2
- [1,1':3',1''-Terphenyl]-4,4''-dicarboxaldehyde, 2'-amino-5'-methyl-679835-69-9C21H17NO2
- 2-Methyl-N-(9H-xanthen-9-yl)benzamide6325-81-1C21H17NO2
- N-(Diphenylmethylidene)-4-methoxybenzamide36728-20-8C21H17NO2
- 3-Hydroxy-1,4-diphenyl-3,4-dihydroquinolin-2-one64754-86-5C21H17NO2
- 5,8-Dimethoxy-2-(2-naphthyl)quinoline618886-14-9C21H17NO2
- N-Dibenzofuran-3-yl-3,5-dimethylbenzamide708221-66-3C21H17NO2
- 2-(6-Methyl-1-benzofuran-3-yl)-N-naphthalen-2-ylacetamide5735-37-5C21H17NO2
- 2,4-Dibenzyloxybenzonitrile170279-11-5C21H17NO2
- Phenyl-1,1-dimethyl-1H-benzo[e]indole-2-carboxylate823207-03-0C21H17NO2
- 4,10,10a,10b-Tetrahydro-2-phenylindeno(2,1-e)isoindole-1,3(2H,3aH)-dione63927-25-3C21H17NO2
- 6-(Dimethylamino)-2-phenyl-1H-phenalene-1,3(2H)-dione97125-51-4C21H17NO2
- Vqgszgyicmwmtc-uhfffaoysa-349552-76-7C21H17NO2
- 4-(Diphenylamino)cinnamic acid25069-29-8C21H17NO2
- Dibenz(a,j)acridine-3,4-diol, 1,2,3,4-tetrahydro-, trans-124508-33-4C21H17NO2
- Methyl 5,6-dimethylbenzo[c]acridine-7-carboxylate71711-47-2C21H17NO2
- 4,5,5-Triphenyloxazolidin-2-one62183-23-7C21H17NO2
- Ethyl 1-phenylpyrrolo[1,2-a]quinoline-3-carboxylate52249-53-3C21H17NO2
- 17-Benzyl-8,16-dioxa-17-azatetracyclo[7.7.1.02,7.010,15]heptadeca-2,4,6,10,12,14-hexaene65299-19-6C21H17NO2
- 9H-Indeno(2,1-b)pyridine, 9-((3,4-dimethoxyphenyl)methylene)-110576-16-4C21H17NO2
- 1, O-Benzyloxime5344-75-2C21H17NO2
- 2-(4-Methoxyphenyl)-4-phenyl-4H-3,1-benzoxazine28586-60-9C21H17NO2
- 3,5-Bis(benzyloxy)benzonitrile110926-77-7C21H17NO2
- 2-(2-Nitrophenyl)-9,9-dimethyl-9H-fluorene1260228-94-1C21H17NO2
- 6-(4-Phenoxyphenyl)-3,4-dihydroquinolin-2(1H)-one1224927-44-9C21H17NO2
- N-(2-{[1,1'-Biphenyl]-4-carbonyl}phenyl)acetamide1415473-88-9C21H17NO2
- 2-[(4S,5R)-4,5-Dihydro-4,5-diphenyl-2-oxazolyl]phenol365281-27-2C21H17NO2
- Dibenz(a,j)acridine-3,4-diol, 1,2,3,4-tetrahydro-, (3R-trans)-116934-99-7C21H17NO2
- 1,2-Diphenyl-2-phenylmethoxyiminoethanoneC21H17NO2
- 2-Propen-1-one, 3-[4-(phenylmethoxy)phenyl]-1-(2-pyridinyl)-330559-52-9C21H17NO2
- N-(2-Oxo-1,2-diphenylethyl)-N-phenylformamide81640-86-0C21H17NO2
- 2H-Pyrano[3,2-g]quinolin-2-one, 8-ethyl-4-methyl-6-phenyl-647841-84-7C21H17NO2
- 1-Propanone, 3-[(2-hydroxyphenyl)imino]-1,3-diphenyl-204983-66-4C21H17NO2
- Benzamide, N-phenyl-2-(phenylacetyl)-60984-32-9C21H17NO2
- 2H-Isoindole-4,7-dione, 5,6-dihydro-2-methyl-1,3-diphenyl-61923-88-4C21H17NO2
- Benzamide, N-benzoyl-4-methyl-N-phenyl-61582-60-3C21H17NO2
- 5-Methoxy-2,3-diphenyl-6-benzofuranamine41082-81-9C21H17NO2
Frequently asked questions
What is the molar mass of C21H17NO2?
The molar mass of C21H17NO2 is 315.37 g/mol, calculated from standard atomic weights for 21 carbon atoms, 17 hydrogen atoms, 1 nitrogen atom and 2 oxygen atoms. The monoisotopic mass is 315.1259 Da.
How many compounds have the formula C21H17NO2?
CompoundList lists 131 compounds with the molecular formula C21H17NO2, including 5H-Indeno[1,2-b]pyridin-5-one, 3-acetyl-1,4-dihydro-2-methyl-4-phenyl-, 5-(Furan-2-yl)-2,3,5,6-tetrahydro-1H-benzo[a]phenanthridin-4-one, 2,6-Bis(phenylmethoxy)benzonitrile. 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 C21H17NO2?
C21H17NO2 has a degree of unsaturation of 14. 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.