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Molecular formula

C20H11N3O3

11 compounds have this formula on CompoundList.

Molar mass
341.33g/mol
Monoisotopic mass
341.0800Da
Atoms
37
Elements
4
Rings plus double bonds
17

The formula C20H11N3O3 describes a molecule made of 20 carbon atoms, 11 hydrogen atoms, 3 nitrogen atoms 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 × 2070.38%
    12.011 × 20 = 240.220 g/mol
  • H Hydrogen × 113.25%
    1.008 × 11 = 11.088 g/mol
  • N Nitrogen × 312.31%
    14.007 × 3 = 42.021 g/mol
  • O Oxygen × 314.06%
    15.999 × 3 = 47.997 g/mol
Look up another formula

Compounds with the formula C20H11N3O3

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

Showing 1 to 11 of 11 compounds

[(E)-Indeno[1,2-b]quinoxalin-11-ylideneamino] furan-2-carboxylate chemical structure, C20H11N3O3, CAS 312538-03-7
[(E)-Indeno[1,2-b]quinoxalin-11-ylideneamino] furan-2-carboxylate
CAS 312538-03-7C20H11N3O3
Arcyroxepin A chemical structure, C20H11N3O3, CAS 73697-66-2
Arcyroxepin A
CAS 73697-66-2C20H11N3O3
2-(4-Nitrophenyl)indeno[1,2,3-de]phthalazin-3(2H)-one chemical structure, C20H11N3O3, CAS 98655-83-5
2-(4-Nitrophenyl)indeno[1,2,3-de]phthalazin-3(2H)-one
CAS 98655-83-5C20H11N3O3
[(Z)-Indeno[1,2-b]quinoxalin-11-ylideneamino] furan-2-carboxylate chemical structure, C20H11N3O3
[(Z)-Indeno[1,2-b]quinoxalin-11-ylideneamino] furan-2-carboxylate
C20H11N3O3
(Indeno[1,2-b]quinoxalin-11-ylideneamino) furan-2-carboxylate chemical structure, C20H11N3O3
(Indeno[1,2-b]quinoxalin-11-ylideneamino) furan-2-carboxylate
C20H11N3O3
2-(3-(Pyridin-3-yl)-1,2,4-oxadiazol-5-yl)-3H-benzo[f]chromen-3-one chemical structure, C20H11N3O3, CAS 892756-95-5
2-(3-(Pyridin-3-yl)-1,2,4-oxadiazol-5-yl)-3H-benzo[f]chromen-3-one
CAS 892756-95-5C20H11N3O3
2-[3-(Pyridin-4-yl)-1,2,4-oxadiazol-5-yl]-3H-benzo[f]chromen-3-one chemical structure, C20H11N3O3, CAS 892757-02-7
2-[3-(Pyridin-4-yl)-1,2,4-oxadiazol-5-yl]-3H-benzo[f]chromen-3-one
CAS 892757-02-7C20H11N3O3
2-[5-[(E)-2-Cyano-2-(3-nitrophenyl)ethenyl]furan-2-yl]benzonitrile chemical structure, C20H11N3O3, CAS 712317-56-1
2-[5-[(E)-2-Cyano-2-(3-nitrophenyl)ethenyl]furan-2-yl]benzonitrile
CAS 712317-56-1C20H11N3O3
2-[2-(3-Nitrophenyl)ethenyl]naphtho[1,2-D][1,3]oxazole-5-carbonitrile chemical structure, C20H11N3O3, CAS 61575-66-4
2-[2-(3-Nitrophenyl)ethenyl]naphtho[1,2-D][1,3]oxazole-5-carbonitrile
CAS 61575-66-4C20H11N3O3
3-[5-(Quinolin-6-yl)-1,3,4-oxadiazol-2-yl]-2H-chromen-2-one chemical structure, C20H11N3O3, CAS 1794914-67-2
3-[5-(Quinolin-6-yl)-1,3,4-oxadiazol-2-yl]-2H-chromen-2-one
CAS 1794914-67-2C20H11N3O3
2-Azido-1-phenoxyanthracene-9,10-dione chemical structure, C20H11N3O3, CAS 582298-58-6
2-Azido-1-phenoxyanthracene-9,10-dione
CAS 582298-58-6C20H11N3O3

Frequently asked questions

What is the molar mass of C20H11N3O3?

The molar mass of C20H11N3O3 is 341.33 g/mol, calculated from standard atomic weights for 20 carbon atoms, 11 hydrogen atoms, 3 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 341.0800 Da.

How many compounds have the formula C20H11N3O3?

CompoundList lists 11 compounds with the molecular formula C20H11N3O3, including [(E)-Indeno[1,2-b]quinoxalin-11-ylideneamino] furan-2-carboxylate, Arcyroxepin A, 2-(4-Nitrophenyl)indeno[1,2,3-de]phthalazin-3(2H)-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 C20H11N3O3?

C20H11N3O3 has a degree of unsaturation of 17. 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.