Molecular formula

C₂₁H₂₀N₂O

125 compounds have this formula on CompoundList.

Molar mass: 316.40g/mol
Monoisotopic mass: 316.1576Da
Atoms: 44
Elements: 4
Rings plus double bonds: 13

The formula C21H20N2O describes a molecule made of 21 carbon atoms, 20 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 × 2179.72%
12.011 × 21 = 252.231 g/mol
H Hydrogen × 206.37%
1.008 × 20 = 20.160 g/mol
N Nitrogen × 28.85%
14.007 × 2 = 28.014 g/mol
O Oxygen × 15.06%
15.999 × 1 = 15.999 g/mol

Look up another formula

Compounds with the formula C21H20N2O

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

Showing 101 to 125 of 125 compounds

(6-(Indolin-1-yl)-2-methylpyridin-3-yl)(phenyl)methanol

CAS 1355236-34-8C₂₁H₂₀N₂O

8-((5-Phenylpentyl)oxy)quinoline-5-carbonitrile

CAS 1820856-54-9C₂₁H₂₀N₂O

N-[(1R,2R)-2-Amino-1,2-diphenylethyl]benzamide

CAS 511534-45-5C₂₁H₂₀N₂O

10-[4-(1H-Pyrrol-1-yl)butyl]-9,10-dihydroacridin-9-one

CAS 2490478-77-6C₂₁H₂₀N₂O

N-(2-Aminophenyl)-2-(2-phenylethyl)benzamide

CAS 897446-36-5C₂₁H₂₀N₂O

3,5-Dimethyl-4-benzyloxyazobenzene

CAS 119121-11-8C₂₁H₂₀N₂O

N-Benzyl-N-(2-phenylethyl)pyridine-4-carboxamide

CAS 951027-40-0C₂₁H₂₀N₂O

N-tert-Butyl-5-(diphenylamino)penta-2,4-diynamide

CAS 82505-86-0C₂₁H₂₀N₂O

4,6,6-Trimethyl-1,3-diphenyl-1,6-dihydropyrano[2,3-c]pyrazole

CAS 87277-56-3C₂₁H₂₀N₂O

(E)-1-[4-(Benzyloxy)phenyl]-2-(2,5-dimethylphenyl)diazene

CAS 88578-26-1C₂₁H₂₀N₂O

9-Oxo-2,4-diphenyl-3-azabicyclo[3.3.1]nonane-3-carbonitrile

CAS 92586-89-5C₂₁H₂₀N₂O

N,N'-Diphenyl-N-(2-phenylethyl)urea

CAS 141956-75-4C₂₁H₂₀N₂O

4-Methyl-4-phenyl-1-[(quinolin-8-yl)amino]pent-1-en-3-one

CAS 62748-00-9C₂₁H₂₀N₂O

1-(Butylideneamino)-4,6-diphenylpyridin-2(1H)-one

CAS 61777-33-1C₂₁H₂₀N₂O

2-Isocyano-3,3-diphenyl-1-(piperidin-1-yl)prop-2-en-1-one

CAS 84977-90-2C₂₁H₂₀N₂O

4,4,8-Trimethyl-3,4-dihydro-2H-[1,3'-biquinolin]-2-one

CAS 918646-32-9C₂₁H₂₀N₂O

4,4,5-Trimethyl-3,4-dihydro-2H-[1,3'-biquinolin]-2-one

CAS 918646-27-2C₂₁H₂₀N₂O

3-Ethyl-3-methyl-3,4-dihydro-2H-[1,3'-biquinolin]-2-one

CAS 918645-78-0C₂₁H₂₀N₂O

2-[2-(9H-Carbazol-3-ylamino)phenyl]propan-2-ol

CAS 1352821-35-2C₂₁H₂₀N₂O

(6-(3,4-Dihydroquinolin-1(2H)-yl)pyridin-3-yl)(phenyl)methanol

CAS 1355201-96-5C₂₁H₂₀N₂O

4-(Diphenylamino)-N,N-dimethylbenzamide

CAS 29339-02-4C₂₁H₂₀N₂O

2-(4-Methoxyphenyl)-4-phenyl-1,2,3,4-tetrahydroquinazoline

CAS 84570-91-2C₂₁H₂₀N₂O

6-Ethoxy-2-(4-phenylbuta-1,3-dien-1-yl)quinolin-4-amine

CAS 646068-84-0C₂₁H₂₀N₂O

Phenyl((3aR,6S,8aR)-6-phenyl-3a,6-dihydro-1H,8H-azirino[1,2-a]pyrrolo[3,4-b]pyridin-2(3H)-yl)methanone

CAS 1860810-02-1C₂₁H₂₀N₂O

N-(3-Aminobenzyl)-2,2-diphenylacetamide
2337225-10-0C₂₁H₂₀N₂O

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What is the molar mass of C21H20N2O?

The molar mass of C21H20N2O is 316.40 g/mol, calculated from standard atomic weights for 21 carbon atoms, 20 hydrogen atoms, 2 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 316.1576 Da.

How many compounds have the formula C21H20N2O?

CompoundList lists 125 compounds with the molecular formula C21H20N2O, including (6-(Indolin-1-yl)-2-methylpyridin-3-yl)(phenyl)methanol, 8-((5-Phenylpentyl)oxy)quinoline-5-carbonitrile, N-[(1R,2R)-2-Amino-1,2-diphenylethyl]benzamide. 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 C21H20N2O?

C21H20N2O has a degree of unsaturation of 13. 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.