Molecular formula

C₂₀H₁₁NO₃

14 compounds have this formula on CompoundList.

Molar mass: 313.31g/mol
Monoisotopic mass: 313.0739Da
Atoms: 35
Elements: 4
Rings plus double bonds: 16

The formula C20H11NO3 describes a molecule made of 20 carbon atoms, 11 hydrogen atoms, 1 nitrogen atom and 3 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 × 2076.67%
12.011 × 20 = 240.220 g/mol
H Hydrogen × 113.54%
1.008 × 11 = 11.088 g/mol
N Nitrogen × 14.47%
14.007 × 1 = 14.007 g/mol
O Oxygen × 315.32%
15.999 × 3 = 47.997 g/mol

Look up another formula

Compounds with the formula C20H11NO3

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

Showing 1 to 14 of 14 compounds

5-Phenoxy-anthra[1,9-cd]isoxazol-6-one

CAS 88422-65-5C₂₀H₁₁NO₃

2-(1,3-Benzoxazol-2-yl)-3H-benzo[f]chromen-3-one

CAS 71860-31-6C₂₀H₁₁NO₃

8-Hydroxy-1-nitrobenzo(e)pyrene

CAS 115664-51-2C₂₀H₁₁NO₃

Benzo(e)pyren-3-ol, 8-nitro-

CAS 115664-50-1C₂₀H₁₁NO₃

4,5-Epoxy-1-nitro-4,5-dihydrobenzo(e)pyrene

CAS 115664-49-8C₂₀H₁₁NO₃

6-Nitrobenzo(a)pyren-7-ol

CAS 119056-57-4C₂₀H₁₁NO₃

4-Nitrobenzo[a]pyren-1-ol

CAS 82039-09-6C₂₀H₁₁NO₃

Benzo(a)pyren-1-ol, 6-nitro-

CAS 82039-10-9C₂₀H₁₁NO₃

1-Nitrobenzo(a)pyren-8-ol

CAS 92758-41-3C₂₀H₁₁NO₃

Benzo(a)pyren-10-ol, 1-nitro-

CAS 92758-42-4C₂₀H₁₁NO₃

Benzo(a)pyren-3-ol, 1-nitro-

CAS 92758-45-7C₂₀H₁₁NO₃

Benzo(a)pyren-6-ol, 1-nitro-

CAS 92758-46-8C₂₀H₁₁NO₃

2-(1,3-Benzoxazol-2-yl)-1H-cyclopenta[b]naphthalene-1,3(2H)-dione

CAS 918158-23-3C₂₀H₁₁NO₃

4-Phenyl-1H-furo[3,4-a]carbazole-1,3(10H)-dione

CAS 22359-19-9C₂₀H₁₁NO₃

Frequently asked questions

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What is the molar mass of C20H11NO3?

The molar mass of C20H11NO3 is 313.31 g/mol, calculated from standard atomic weights for 20 carbon atoms, 11 hydrogen atoms, 1 nitrogen atom and 3 oxygen atoms. The monoisotopic mass is 313.0739 Da.

How many compounds have the formula C20H11NO3?

CompoundList lists 14 compounds with the molecular formula C20H11NO3, including 5-Phenoxy-anthra[1,9-cd]isoxazol-6-one, 2-(1,3-Benzoxazol-2-yl)-3H-benzo[f]chromen-3-one, 8-Hydroxy-1-nitrobenzo(e)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 C20H11NO3?

C20H11NO3 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.