Molecular formula

C₂₁H₁₄N₂O

26 compounds have this formula on CompoundList.

Molar mass: 310.36g/mol
Monoisotopic mass: 310.1106Da
Atoms: 38
Elements: 4
Rings plus double bonds: 16

The formula C21H14N2O describes a molecule made of 21 carbon atoms, 14 hydrogen atoms, 2 nitrogen atoms and 1 oxygen atom. 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 × 2181.27%
12.011 × 21 = 252.231 g/mol
H Hydrogen × 144.55%
1.008 × 14 = 14.112 g/mol
N Nitrogen × 29.03%
14.007 × 2 = 28.014 g/mol
O Oxygen × 15.16%
15.999 × 1 = 15.999 g/mol

Look up another formula

Compounds with the formula C21H14N2O

Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.

Showing 1 to 26 of 26 compounds

6-(1,3-Dihydrophenanthro[9,10-d]imidazol-2-ylidene)cyclohexa-2,4-dien-1-one

CAS 24293-67-2C₂₁H₁₄N₂O

2-(p-Tolyl)indeno[1,2,3-de]phthalazin-3(2H)-one

CAS 442567-79-5C₂₁H₁₄N₂O

RefChem:357221

CAS 26455-95-8C₂₁H₁₄N₂O

5-Benzoyl-6H-phenanthridine-6-carbonitrile

CAS 59193-74-7C₂₁H₁₄N₂O

10-Methyl-2-(pyridin-2-ylethynyl)acridin-9(10H)-one

CAS 1135697-22-1C₂₁H₁₄N₂O

2-(2H-Phenanthro[9,10-d]imidazol-2-yl)phenol

CAS 923250-25-3C₂₁H₁₄N₂O

Phenyl-(3-phenylquinoxalin-2-yl)methanone

CAS 5784-78-1C₂₁H₁₄N₂O

4-(4-Methyl-2-biphenylyloxy)phthalonitrile

CAS 339224-17-8C₂₁H₁₄N₂O

2-Benzylindeno[1,2,3-de]phthalazin-3(2H)-one

CAS 682786-67-0C₂₁H₁₄N₂O

4-(9H-Fluoren-2-yl)phthalazin-1(2H)-one

CAS 23949-01-1C₂₁H₁₄N₂O

2-Methyl-4-(4-methylphenyl)-5-oxo-5H-indeno[1,2-b]pyridine-3-carbonitrile

CAS 439108-78-8C₂₁H₁₄N₂O

1-Benzoyl-1,2-dihydrobenzo[f]quinoline-2-carbonitrile

CAS 54964-81-7C₂₁H₁₄N₂O

1-(4-Hydroxyphenyl)-2-phenyl-1H-indole-3-carbonitrile

CAS 1191387-63-9C₂₁H₁₄N₂O

4,4'-[(2-Oxocyclopentane-1,3-diylidene)dimethanylylidene]dibenzonitrile

CAS 63476-65-3C₂₁H₁₄N₂O

4-(3-Phenyl-1,8-naphthyridin-2-yl)benzaldehyde

CAS 616870-20-3C₂₁H₁₄N₂O

4-(3-Phenyl-1,5-naphthyridin-2-yl)benzaldehyde

CAS 867353-51-3C₂₁H₁₄N₂O

10-(Benzylidenehydrazinylidene)anthracen-9(10H)-one

CAS 3166-14-1C₂₁H₁₄N₂O

1-Hydroxy-2,3-diphenylindolizine-7-carbonitrile

CAS 86203-32-9C₂₁H₁₄N₂O

4-[3-(4-Aminophenyl)-2-benzofuran-1-yl]benzonitrile

CAS 923268-35-3C₂₁H₁₄N₂O

11-Phenyl-11H-indeno[1,2-B]quinoxalin-11-ol

CAS 52045-16-6C₂₁H₁₄N₂O

1-(2-Naphthoyl)-1,2-dihydroquinoline-2-carbonitrile

CAS 145241-40-3C₂₁H₁₄N₂O

2,4-Diphenyl-3H-1,5-benzodiazepin-3-one

CAS 22059-62-7C₂₁H₁₄N₂O

10-(Isoquinolin-4-yl)-10H-phenoxazine

CAS 2809368-89-4C₂₁H₁₄N₂O

10-(Quinolin-3-yl)-10H-phenoxazine

CAS 2809368-88-3C₂₁H₁₄N₂O

Frequently asked questions

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What is the molar mass of C21H14N2O?

The molar mass of C21H14N2O is 310.36 g/mol, calculated from standard atomic weights for 21 carbon atoms, 14 hydrogen atoms, 2 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 310.1106 Da.

How many compounds have the formula C21H14N2O?

CompoundList lists 26 compounds with the molecular formula C21H14N2O, including 6-(1,3-Dihydrophenanthro[9,10-d]imidazol-2-ylidene)cyclohexa-2,4-dien-1-one, 2-(p-Tolyl)indeno[1,2,3-de]phthalazin-3(2H)-one, RefChem:357221. 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 C21H14N2O?

C21H14N2O 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.