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Molecular formula

C16H9NO4

12 compounds have this formula on CompoundList.

Molar mass
279.25g/mol
Monoisotopic mass
279.0532Da
Atoms
30
Elements
4
Rings plus double bonds
13

The formula C16H9NO4 describes a molecule made of 16 carbon atoms, 9 hydrogen atoms, 1 nitrogen atom and 4 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 × 1668.82%
    12.011 × 16 = 192.176 g/mol
  • H Hydrogen × 93.25%
    1.008 × 9 = 9.072 g/mol
  • N Nitrogen × 15.02%
    14.007 × 1 = 14.007 g/mol
  • O Oxygen × 422.92%
    15.999 × 4 = 63.996 g/mol
Look up another formula

Compounds with the formula C16H9NO4

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

Showing 1 to 12 of 12 compounds

3-Benzoxazol-2-yl-7-hydroxy-1-benzopyran-2(2H)-one chemical structure, C16H9NO4, CAS 64887-40-7
3-Benzoxazol-2-yl-7-hydroxy-1-benzopyran-2(2H)-one
CAS 64887-40-7C16H9NO4
Aristololactam IIIa chemical structure, C16H9NO4, CAS 97399-89-8
Aristololactam IIIa
CAS 97399-89-8C16H9NO4
2-[(4-Nitrophenyl)methylidene]indene-1,3-dione chemical structure, C16H9NO4, CAS 15875-60-2
2-[(4-Nitrophenyl)methylidene]indene-1,3-dione
CAS 15875-60-2C16H9NO4
2-(3-Nitrobenzylidene)-1H-indene-1,3(2H)-dione chemical structure, C16H9NO4, CAS 7421-77-4
2-(3-Nitrobenzylidene)-1H-indene-1,3(2H)-dione
CAS 7421-77-4C16H9NO4
Benzo(f)-1,3-benzodioxolo(6,5,4-cd)indol-5(6H)-one, 8-hydroxy- chemical structure, C16H9NO4, CAS 85814-30-8
Benzo(f)-1,3-benzodioxolo(6,5,4-cd)indol-5(6H)-one, 8-hydroxy-
CAS 85814-30-8C16H9NO4
2-(2-Nitrobenzylidene)-1H-indene-1,3(2H)-dione chemical structure, C16H9NO4, CAS 15875-61-3
2-(2-Nitrobenzylidene)-1H-indene-1,3(2H)-dione
CAS 15875-61-3C16H9NO4
Methyl 6-oxo-6H-anthra[1,9-cd]isoxazole-3-carboxylate chemical structure, C16H9NO4, CAS 95310-34-2
Methyl 6-oxo-6H-anthra[1,9-cd]isoxazole-3-carboxylate
CAS 95310-34-2C16H9NO4
2-Methyl[1]benzopyrano[2,3-e]isoindole-1,3,6(2H)-trione chemical structure, C16H9NO4, CAS 92461-62-6
2-Methyl[1]benzopyrano[2,3-e]isoindole-1,3,6(2H)-trione
CAS 92461-62-6C16H9NO4
1H-Anthra[1,2-d][1,3]oxazine-4,7,12(2H)-trione chemical structure, C16H9NO4, CAS 52298-02-9
1H-Anthra[1,2-d][1,3]oxazine-4,7,12(2H)-trione
CAS 52298-02-9C16H9NO4
6-Nitropyrene-1,3-diol chemical structure, C16H9NO4, CAS 91598-90-2
6-Nitropyrene-1,3-diol
CAS 91598-90-2C16H9NO4
3-(1,2,4-Benzodioxazin-3-yl)-2H-1-benzopyran-2-one chemical structure, C16H9NO4, CAS 93887-25-3
3-(1,2,4-Benzodioxazin-3-yl)-2H-1-benzopyran-2-one
CAS 93887-25-3C16H9NO4
6-Nitropyrene-1,9-diol chemical structure, C16H9NO4, CAS 192703-89-2
6-Nitropyrene-1,9-diol
CAS 192703-89-2C16H9NO4

Frequently asked questions

What is the molar mass of C16H9NO4?

The molar mass of C16H9NO4 is 279.25 g/mol, calculated from standard atomic weights for 16 carbon atoms, 9 hydrogen atoms, 1 nitrogen atom and 4 oxygen atoms. The monoisotopic mass is 279.0532 Da.

How many compounds have the formula C16H9NO4?

CompoundList lists 12 compounds with the molecular formula C16H9NO4, including 3-Benzoxazol-2-yl-7-hydroxy-1-benzopyran-2(2H)-one, Aristololactam IIIa, 2-[(4-Nitrophenyl)methylidene]indene-1,3-dione. 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 C16H9NO4?

C16H9NO4 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.