Molecular formula
C21H15NO2
67 compounds have this formula on CompoundList.
- Molar mass
- 313.36g/mol
- Monoisotopic mass
- 313.1103Da
- Atoms
- 39
- Elements
- 4
- Rings plus double bonds
- 15
The formula C21H15NO2 describes a molecule made of 21 carbon atoms, 15 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 × 2180.49%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 154.83%1.008 × 15 = 15.120 g/mol
- N Nitrogen × 14.47%14.007 × 1 = 14.007 g/mol
- O Oxygen × 210.21%15.999 × 2 = 31.998 g/mol
Look up another formula
Compounds with the formula C21H15NO2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 67 of 67 compounds
Anthonaphthol SW
CAS 135-64-8C21H15NO2
3-Hydroxy-N-1-naphthyl-2-naphthamide
CAS 132-68-3C21H15NO2
2,3-Diphenyl-1H-indole-7-carboxylic acid
CAS 197313-74-9C21H15NO2
4-Hydroxy-1,3-diphenylquinolin-2(1H)-one
CAS 76066-78-9C21H15NO2
9-Benzylcarbazole-3,6-dicarboxaldehyde
CAS 200698-05-1C21H15NO2
1-(Diphenylmethyl)-1H-indole-2,3-dione
CAS 94878-41-8C21H15NO2
2-Hydroxy-N-1-naphthalenyl-1-naphthalenecarboxamide
CAS 94878-43-0C21H15NO2
![2-Nitro-3-phenylspiro[cyclopropane-1,9'-fluorene] chemical structure, C21H15NO2, CAS 34166-91-1](/s/LWKKJTAKWDOTEK-UHFFFAOYSA-N.svg)
2-Nitro-3-phenylspiro[cyclopropane-1,9'-fluorene]
CAS 34166-91-1C21H15NO2
![3-[2-(3-Phenoxyphenyl)acetyl]benzonitrile chemical structure, C21H15NO2, CAS 465514-74-3](/s/CMMDWFJQYJTCHH-UHFFFAOYSA-N.svg)
3-[2-(3-Phenoxyphenyl)acetyl]benzonitrile
CAS 465514-74-3C21H15NO2
2,4,4-Triphenyl-2-oxazolin-5-one
CAS 61365-94-4C21H15NO2
N-(4-Methylphenyl)diphenimide
CAS 66532-90-9C21H15NO2
2-(2-(1,1'-Biphenyl)-4-YL-2-oxoethoxy)benzonitrile
CAS 269075-63-0C21H15NO2
(3-Amino-1-benzofuran-2-yl)((1,1'-biphenyl)-4-yl)methanone
CAS 269075-48-1C21H15NO2
![6-Benzylbenzo[d][2]benzazepine-5,7-dione chemical structure, C21H15NO2, CAS 100891-98-3](/s/SGEYIPDWSAWYMX-UHFFFAOYSA-N.svg)
6-Benzylbenzo[d][2]benzazepine-5,7-dione
CAS 100891-98-3C21H15NO2
Dibenz(a,j)acridine-3,4-diol, 3,4-dihydro-, trans-
CAS 105467-65-0C21H15NO2
2-Anthracenecarboxamide, 3-hydroxy-N-phenyl-
CAS 102327-01-5C21H15NO2
1-(p-Toluidino)anthraquinone
CAS 2944-19-6C21H15NO2
trans-Dibenz(a,j)acridine-5,6-dihydrodiol
CAS 105467-64-9C21H15NO2
1-Anilino-2-methyl-9,10-anthraquinone
CAS 4947-27-7C21H15NO2
(±)-trans-1,2-Dihydroxy-1,2-dihydrodibenz(a,j)acridine
CAS 105467-75-2C21H15NO2
![6-(2-Methylphenyl)benzo[d][2]benzazepine-5,7-dione chemical structure, C21H15NO2, CAS 66532-89-6](/s/BHGZUJSCDFVGML-UHFFFAOYSA-N.svg)
6-(2-Methylphenyl)benzo[d][2]benzazepine-5,7-dione
CAS 66532-89-6C21H15NO2
6-Methyl-2-(4-phenylphenyl)-3,1-benzoxazin-4-one
CAS 351892-57-4C21H15NO2
Propane-1,3-dione, 1,3-diphenyl-2-(phenylimino)-
CAS 24416-28-2C21H15NO2
Dibenz(a,j)acridine-3,4-diol, 3,4-dihydro-, (3R-trans)-
CAS 117019-80-4C21H15NO2
- N-(1,2-Dihydro-5-acenaphthylenyl)-1-benzofuran-2-carboxamide332042-74-7C21H15NO2
- 2(3H)-Oxazolone, 3,4,5-triphenyl-6652-42-2C21H15NO2
- 2-(2-Benzylphenyl)-1H-isoindole-1,3(2H)-dione330450-63-0C21H15NO2
- Methyl 2-(naphthalen-1-yl)quinoline-4-carboxylate610257-48-2C21H15NO2
- (3R,4R)-3,4-Dihydrodibenz(c,h)acridine-3,4-diol93780-91-7C21H15NO2
- 2,4-Azetidinedione, 1,3,3-triphenyl-15745-93-4C21H15NO2
- N-(4-Methylphenyl)-9-oxofluorene-4-carboxamide24040-61-7C21H15NO2
- 2-Benzyl-6,7-dihydro-1H-indeno[6,7,1-def]isoquinoline-1,3(2H)-dione294652-42-9C21H15NO2
- 2,3-Diphenyl-1H-indole-5-carboxylic acid36729-28-9C21H15NO2
- 6-(3-Methylphenyl)benzo[d][2]benzazepine-5,7-dione73189-67-0C21H15NO2
- 2-([1,1'-Biphenyl]-4-ylmethyl)isoindoline-1,3-dione335389-96-3C21H15NO2
- 2-{[(3-Methoxyphenyl)methylidene]amino}-9H-fluoren-9-one873680-17-2C21H15NO2
- 2-Methylphenyl acridine-9-carboxylate158749-37-2C21H15NO2
- N-(2-Phenyl-phenylmethyl)-phthalimide187884-94-2C21H15NO2
- Dibenz(a,h)acridine-3,4-diol, 3,4-dihydro-, trans-102421-84-1C21H15NO2
- 2-(Phenanthridin-6-yl)benzoic acid methyl ester63558-98-5C21H15NO2
- 1-Benzo[1,3]dioxol-5-yl-N-(9H-fluoren-2-yl)methanimine33651-52-4C21H15NO2
- 3-Methyl-2-phenyl-1H-[1,4]benzodioxino[2,3-f]indole58679-42-8C21H15NO2
- 1-(Benzoyloxy)-2-phenyl-1H-indole58810-39-2C21H15NO2
- Dibenz(a,h)acridine-10,11-dione, 10,11-dihydro-, trans-110927-22-5C21H15NO2
- 2-{Benzo[f]quinoline-2-carbonyl}-4-methylphenol744243-66-1C21H15NO2
- 4-([1,1'-Biphenyl]-4-yl)-5-hydroxyisoquinolin-1(2H)-one656234-35-4C21H15NO2
- Agn-PC-0N8faf189024-20-2C21H15NO2
- 3-(4-Hydroxyanilino)-2-phenyl-1H-inden-1-one15255-62-6C21H15NO2
- 2,3,4-Triphenyl-1,2-oxazol-5(2H)-one57892-29-2C21H15NO2
- 4H-1-Benzopyran-4-one,2-phenyl-3-(phenylamino)-208931-89-9C21H15NO2
- Methyl 2-[4-(2-phenylethynyl)phenyl]-4-pyridinecarboxylate1244019-80-4C21H15NO2
- 2-(3-Methylanilino)anthracene-9,10-dione68469-49-8C21H15NO2
- 1-Methyl-2-(2-phenylethenyl)-1H-benzo[f]indole-4,9-dione830924-01-1C21H15NO2
- 9-[(2-Nitrophenyl)methylidene]-9,10-dihydroanthracene60127-08-4C21H15NO2
- (4-Hydroxyphenyl)(2-phenyl-1H-indol-3-yl)methanone103057-00-7C21H15NO2
- 3-(2-Hydroxyphenyl)-2-phenylisoquinolin-1(2H)-one143882-38-6C21H15NO2
- 4'-(Benzyloxy)-3'-formyl[1,1'-biphenyl]-4-carbonitrile893735-59-6C21H15NO2
- 4'-(Benzyloxy)-3'-formyl[1,1'-biphenyl]-3-carbonitrile893735-61-0C21H15NO2
- 4-([1,1'-Biphenyl]-3-yl)-5-hydroxyisoquinolin-1(2H)-one656234-34-3C21H15NO2
- 3-[5-([1,1'-Biphenyl]-4-yl)-1,3-oxazol-2-yl]phenol83959-80-2C21H15NO2
- 4-[5-([1,1'-Biphenyl]-4-yl)-1,3-oxazol-2(3H)-ylidene]cyclohexa-2,5-dien-1-one83959-69-7C21H15NO2
- Benzyl 5-(3-ethynylphenyl)nicotinate3078331-96-8C21H15NO2
- Dibenz(a,j)acridine-5,6-diol, 5,6-dihydro-, cis-106589-64-4C21H15NO2
- Dibenz(a,j)acridine-5,6-diol, 5,6-dihydro-, (5R-trans)-117019-83-7C21H15NO2
- Benzoic acid,2-(3-phenyl-1H-indol-2-yl)-95733-71-4C21H15NO2
- 1H-Isoindol-1-one,3-benzoyl-2,3-dihydro-2-phenyl-95733-73-6C21H15NO2
- 2-Ethyl-2-azapentacyclo[11.7.0.03,11.04,9.015,20]icosa-1(13),3(11),4,6,8,15,17,19-octaene-10,14-dione112298-65-4C21H15NO2
Frequently asked questions
What is the molar mass of C21H15NO2?
The molar mass of C21H15NO2 is 313.36 g/mol, calculated from standard atomic weights for 21 carbon atoms, 15 hydrogen atoms, 1 nitrogen atom and 2 oxygen atoms. The monoisotopic mass is 313.1103 Da.
How many compounds have the formula C21H15NO2?
CompoundList lists 67 compounds with the molecular formula C21H15NO2, including Anthonaphthol SW, 3-Hydroxy-N-1-naphthyl-2-naphthamide, 2,3-Diphenyl-1H-indole-7-carboxylic acid. 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 C21H15NO2?
C21H15NO2 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.