Molecular formula

C₁₆H₉NO

14 compounds have this formula on CompoundList.

Molar mass: 231.25g/mol
Monoisotopic mass: 231.0684Da
Atoms: 27
Elements: 4
Rings plus double bonds: 13

The formula C16H9NO describes a molecule made of 16 carbon atoms, 9 hydrogen atoms, 1 nitrogen atom 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 × 1683.10%
12.011 × 16 = 192.176 g/mol
H Hydrogen × 93.92%
1.008 × 9 = 9.072 g/mol
N Nitrogen × 16.06%
14.007 × 1 = 14.007 g/mol
O Oxygen × 16.92%
15.999 × 1 = 15.999 g/mol

Look up another formula

Compounds with the formula C16H9NO

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

Showing 1 to 14 of 14 compounds

1-Nitrosopyrene

CAS 86674-51-3C₁₆H₉NO

9-Anthranoylnitrile

CAS 85985-44-0C₁₆H₉NO

11H-Indeno[1,2-b]quinolin-11-one

CAS 6626-66-0C₁₆H₉NO

7-Oxo-7H-dibenzo[de,g]quinoline

CAS 38750-39-9C₁₆H₉NO

Benzonitrile, 4-(1-oxo-3-phenyl-2-propynyl)-

CAS 100752-58-7C₁₆H₉NO

Anthracene-1-carbonyl cyanide

CAS 85985-43-9C₁₆H₉NO

10-Formylanthracene-9-carbonitrile

CAS 93496-78-7C₁₆H₉NO

4-[2-(4-Formylphenyl)ethynyl]benzonitrile

CAS 944823-11-4C₁₆H₉NO

Benzonitrile, 4-(3-ethynylbenzoyl)-

CAS 214548-26-2C₁₆H₉NO

6H-Indeno[2,1-b]quinolin-6-one

CAS 6935-19-9C₁₆H₉NO

4-Nitrosopyrene

CAS 143836-80-0C₁₆H₉NO

7H-Naphtho[1,8-fg]quinolin-7-one

CAS 121400-29-1C₁₆H₉NO

11H-Indeno[1,2-c]isoquinolin-11-one

CAS 5264-22-2C₁₆H₉NO

4-(3-Oxo-3-phenylprop-1-yn-1-yl)benzonitrile

CAS 350015-18-8C₁₆H₉NO

Frequently asked questions

Still have a question?

The help centre explains buying, quotes and supplier badges step by step, or you can write to our team.

Help centre Contact us

What is the molar mass of C16H9NO?

The molar mass of C16H9NO is 231.25 g/mol, calculated from standard atomic weights for 16 carbon atoms, 9 hydrogen atoms, 1 nitrogen atom and 1 oxygen atom. The monoisotopic mass is 231.0684 Da.

How many compounds have the formula C16H9NO?

CompoundList lists 14 compounds with the molecular formula C16H9NO, including 1-Nitrosopyrene, 9-Anthranoylnitrile, 11H-Indeno[1,2-b]quinolin-11-one. 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 C16H9NO?

C16H9NO 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.