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Molecular formula

C21H14N4O3

20 compounds have this formula on CompoundList.

Molar mass
370.37g/mol
Monoisotopic mass
370.1066Da
Atoms
42
Elements
4
Rings plus double bonds
17

The formula C21H14N4O3 describes a molecule made of 21 carbon atoms, 14 hydrogen atoms, 4 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 × 2168.10%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 143.81%
    1.008 × 14 = 14.112 g/mol
  • N Nitrogen × 415.13%
    14.007 × 4 = 56.028 g/mol
  • O Oxygen × 312.96%
    15.999 × 3 = 47.997 g/mol
Look up another formula

Compounds with the formula C21H14N4O3

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

Showing 1 to 20 of 20 compounds

1-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-2-(furan-2-yl)-1H-imidazo[4,5-b]quinoxaline chemical structure, C21H14N4O3, CAS 839699-85-3
1-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-2-(furan-2-yl)-1H-imidazo[4,5-b]quinoxaline
CAS 839699-85-3C21H14N4O3
4-[[3-[(2,4,6-Trioxo-1,3-diazinan-5-ylidene)methyl]indol-1-yl]methyl]benzonitrile chemical structure, C21H14N4O3, CAS 1207615-74-4
4-[[3-[(2,4,6-Trioxo-1,3-diazinan-5-ylidene)methyl]indol-1-yl]methyl]benzonitrile
CAS 1207615-74-4C21H14N4O3
3-{[(E)-(4-Nitrophenyl)methylidene]amino}-2-phenylquinazolin-4(3H)-one chemical structure, C21H14N4O3, CAS 56158-76-0
3-{[(E)-(4-Nitrophenyl)methylidene]amino}-2-phenylquinazolin-4(3H)-one
CAS 56158-76-0C21H14N4O3
3-(4-Nitrophenyl)-2-[(E)-2-(pyridin-3-yl)ethenyl]quinazolin-4(3H)-one chemical structure, C21H14N4O3, CAS 334505-36-1
3-(4-Nitrophenyl)-2-[(E)-2-(pyridin-3-yl)ethenyl]quinazolin-4(3H)-one
CAS 334505-36-1C21H14N4O3
Homocarbonyltopsentin chemical structure, C21H14N4O3, CAS 172286-77-0
Homocarbonyltopsentin
CAS 172286-77-0C21H14N4O3
2-[(E)-2-(4-Nitrophenyl)ethenyl]-3-pyridin-3-ylquinazolin-4-one chemical structure, C21H14N4O3, CAS 433707-59-6
2-[(E)-2-(4-Nitrophenyl)ethenyl]-3-pyridin-3-ylquinazolin-4-one
CAS 433707-59-6C21H14N4O3
N-(3-(1H-Benzo[d]imidazol-2-yl)phenyl)-5-(furan-2-yl)isoxazole-3-carboxamide chemical structure, C21H14N4O3, CAS 1203137-53-4
N-(3-(1H-Benzo[d]imidazol-2-yl)phenyl)-5-(furan-2-yl)isoxazole-3-carboxamide
CAS 1203137-53-4C21H14N4O3
(2Z)-2-[(1,3-Benzodioxol-5-ylamino)methylidene]-3-methyl-1-oxo-1,2-dihydropyrido[1,2-a]benzimidazole-4-carbonitrile chemical structure, C21H14N4O3, CAS 881566-49-0
(2Z)-2-[(1,3-Benzodioxol-5-ylamino)methylidene]-3-methyl-1-oxo-1,2-dihydropyrido[1,2-a]benzimidazole-4-carbonitrile
CAS 881566-49-0C21H14N4O3
7-(1,3-Benzodioxol-5-yl)-2-(3-methoxyphenyl)[1,2,4]triazolo[1,5-a]pyridine-8-carbonitrile chemical structure, C21H14N4O3, CAS 685108-55-8
7-(1,3-Benzodioxol-5-yl)-2-(3-methoxyphenyl)[1,2,4]triazolo[1,5-a]pyridine-8-carbonitrile
CAS 685108-55-8C21H14N4O3
2-[(E)-2-(4-Nitrophenyl)ethenyl]-3-pyridin-2-ylquinazolin-4-one chemical structure, C21H14N4O3, CAS 334505-40-7
2-[(E)-2-(4-Nitrophenyl)ethenyl]-3-pyridin-2-ylquinazolin-4-one
CAS 334505-40-7C21H14N4O3
3-Nitro-N-(3-quinoxalin-2-ylphenyl)benzamide chemical structure, C21H14N4O3, CAS 892682-14-3
3-Nitro-N-(3-quinoxalin-2-ylphenyl)benzamide
CAS 892682-14-3C21H14N4O3
5-(Furan-2-yl)-N-(2-(imidazo[1,2-a]pyridin-2-yl)phenyl)isoxazole-3-carboxamide chemical structure, C21H14N4O3, CAS 1798514-71-2
5-(Furan-2-yl)-N-(2-(imidazo[1,2-a]pyridin-2-yl)phenyl)isoxazole-3-carboxamide
CAS 1798514-71-2C21H14N4O3
2'-Amino-2,5'-dioxo-1'-phenylspiro[1H-indole-3,4'-7H-furo[3,4-b]pyridine]-3'-carbonitrile chemical structure, C21H14N4O3, CAS 728885-50-5
2'-Amino-2,5'-dioxo-1'-phenylspiro[1H-indole-3,4'-7H-furo[3,4-b]pyridine]-3'-carbonitrile
CAS 728885-50-5C21H14N4O3
2-(2-Furylmethyl)-8-(4-pyridyl)pyrido[4,3-b][1,6]naphthyridine-1,9(2H,8H)-dione chemical structure, C21H14N4O3, CAS 1158779-17-9
2-(2-Furylmethyl)-8-(4-pyridyl)pyrido[4,3-b][1,6]naphthyridine-1,9(2H,8H)-dione
CAS 1158779-17-9C21H14N4O3
2-((2-(3-(Benzo[d][1,3]dioxol-5-yl)-1,2,4-oxadiazol-5-yl)-1H-pyrrol-1-yl)methyl)benzonitrile chemical structure, C21H14N4O3, CAS 1428372-43-3
2-((2-(3-(Benzo[d][1,3]dioxol-5-yl)-1,2,4-oxadiazol-5-yl)-1H-pyrrol-1-yl)methyl)benzonitrile
CAS 1428372-43-3C21H14N4O3
1-Phenyl-5-[(2-phenyl-5-pyrimidinyl)methylene]-2,4,6(1H,3H,5H)-pyrimidinetrione chemical structure, C21H14N4O3, CAS 6618-14-0
1-Phenyl-5-[(2-phenyl-5-pyrimidinyl)methylene]-2,4,6(1H,3H,5H)-pyrimidinetrione
CAS 6618-14-0C21H14N4O3
4-Benzoyl-N-(5-(pyridin-4-yl)-1,3,4-oxadiazol-2-yl)benzamide chemical structure, C21H14N4O3, CAS 887866-76-4
4-Benzoyl-N-(5-(pyridin-4-yl)-1,3,4-oxadiazol-2-yl)benzamide
CAS 887866-76-4C21H14N4O3
4(3H)-Quinazolinone, 3-(5-nitro-2-pyridyl)-2-styryl- chemical structure, C21H14N4O3, CAS 78899-06-6
4(3H)-Quinazolinone, 3-(5-nitro-2-pyridyl)-2-styryl-
CAS 78899-06-6C21H14N4O3
3-Amino-5-nitro-1-(4-phenoxyphenyl)-1H-indole-2-carbonitrile chemical structure, C21H14N4O3, CAS 1643531-14-9
3-Amino-5-nitro-1-(4-phenoxyphenyl)-1H-indole-2-carbonitrile
CAS 1643531-14-9C21H14N4O3
[1-(4-Nitrophenyl)-5-phenyl-1H-1,2,3-triazol-4-yl](phenyl)methanone chemical structure, C21H14N4O3, CAS 122942-42-1
[1-(4-Nitrophenyl)-5-phenyl-1H-1,2,3-triazol-4-yl](phenyl)methanone
CAS 122942-42-1C21H14N4O3

Frequently asked questions

What is the molar mass of C21H14N4O3?

The molar mass of C21H14N4O3 is 370.37 g/mol, calculated from standard atomic weights for 21 carbon atoms, 14 hydrogen atoms, 4 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 370.1066 Da.

How many compounds have the formula C21H14N4O3?

CompoundList lists 20 compounds with the molecular formula C21H14N4O3, including 1-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-2-(furan-2-yl)-1H-imidazo[4,5-b]quinoxaline, 4-[[3-[(2,4,6-Trioxo-1,3-diazinan-5-ylidene)methyl]indol-1-yl]methyl]benzonitrile, 3-{[(E)-(4-Nitrophenyl)methylidene]amino}-2-phenylquinazolin-4(3H)-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 C21H14N4O3?

C21H14N4O3 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.