Molecular formula

C₂₀H₁₁NO₂

31 compounds have this formula on CompoundList.

Molar mass: 297.31g/mol
Monoisotopic mass: 308.1480Da
Atoms: 34
Elements: 4
Rings plus double bonds: 16

The formula C20H11NO2 describes a molecule made of 20 carbon atoms, 11 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 × 2080.80%
12.011 × 20 = 240.220 g/mol
H Hydrogen × 113.73%
1.008 × 11 = 11.088 g/mol
N Nitrogen × 14.71%
14.007 × 1 = 14.007 g/mol
O Oxygen × 210.76%
15.999 × 2 = 31.998 g/mol

Look up another formula

Compounds with the formula C20H11NO2

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

Showing 1 to 31 of 31 compounds

N-(1-Pyrenyl)maleimide

CAS 42189-56-0C₂₀H₁₁NO₂

6-Nitrobenzo(a)pyrene

CAS 63041-90-7C₂₀H₁₁NO₂

1-Nitrobenzo(a)pyrene

CAS 70021-99-7C₂₀H₁₁NO₂

3-Nitrobenzo(a)pyrene

CAS 70021-98-6C₂₀H₁₁NO₂

3-Nitroperylene

CAS 20589-63-3C₂₀H₁₁NO₂

1-Nitrobenzo(e)pyrene

CAS 91259-16-4C₂₀H₁₁NO₂

3-Nitrobenzo(e)pyrene

CAS 81340-58-1C₂₀H₁₁NO₂

1-(3-Fluoranthenyl)-1H-pyrrole-2,5-dione

CAS 60354-76-9C₂₀H₁₁NO₂

2-Nitrobenz(j)aceanthrylene

CAS 107673-63-2C₂₀H₁₁NO₂

1-Nitroperylene

CAS 35337-20-3C₂₀H₁₁NO₂

Benzo(k)fluoranthene, 3-nitro-

CAS 81316-80-5C₂₀H₁₁NO₂

5H-Naphtho(2,3-a)carbazole-5,13(12H)-dione

CAS 7600-14-8C₂₀H₁₁NO₂

7H-Naphtho[1,2-b]carbazole-7,13(12H)-dione

CAS 922192-06-1C₂₀H₁₁NO₂

Benz(e)aceanthrylene, 6-nitro-

CAS 107673-64-3C₂₀H₁₁NO₂

2-Nitrobenz(l)aceanthrylene

CAS 107673-65-4C₂₀H₁₁NO₂

4-Nitrobenz(k)acephenanthrylene

CAS 107673-66-5C₂₀H₁₁NO₂

Quinolino[3,2,1-de]acridine-5,9-dione

CAS 32081-22-4C₂₀H₁₁NO₂

Benzo(a)pyrene, 2-nitro-

CAS 138542-40-2C₂₀H₁₁NO₂

4-Nitrobenzo(e)pyrene

CAS 134998-77-9C₂₀H₁₁NO₂

5-Nitrobenzo(a)pyrene

CAS 24027-83-6C₂₀H₁₁NO₂

6-Hydroxy-8H-dibenz[b,kl]acridin-8-one

CAS 52415-30-2C₂₀H₁₁NO₂

5-Nitrobenz(l)acephenanthrylene

CAS 107673-67-6C₂₀H₁₁NO₂

4-Nitrobenzo(a)pyrene

CAS 109345-47-3C₂₀H₁₁NO₂

6H-Benzo[h][1]benzopyrano[4,3-b]quinolin-6-one

CAS 5100-84-5C₂₀H₁₁NO₂

Frequently asked questions

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What is the molar mass of C20H11NO2?

The molar mass of C20H11NO2 is 297.31 g/mol, calculated from standard atomic weights for 20 carbon atoms, 11 hydrogen atoms, 1 nitrogen atom and 2 oxygen atoms. The monoisotopic mass is 308.1480 Da.

How many compounds have the formula C20H11NO2?

CompoundList lists 31 compounds with the molecular formula C20H11NO2, including N-(1-Pyrenyl)maleimide, 6-Nitrobenzo(a)pyrene, 1-Nitrobenzo(a)pyrene. 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 C20H11NO2?

C20H11NO2 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.