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Molecular formula

C21H15N5O4

22 compounds have this formula on CompoundList.

Molar mass
401.38g/mol
Monoisotopic mass
401.1124Da
Atoms
45
Elements
4
Rings plus double bonds
17

The formula C21H15N5O4 describes a molecule made of 21 carbon atoms, 15 hydrogen atoms, 5 nitrogen atoms 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 × 2162.84%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 153.77%
    1.008 × 15 = 15.120 g/mol
  • N Nitrogen × 517.45%
    14.007 × 5 = 70.035 g/mol
  • O Oxygen × 415.94%
    15.999 × 4 = 63.996 g/mol
Look up another formula

Compounds with the formula C21H15N5O4

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

Showing 1 to 22 of 22 compounds

2-[4-(3-Nitrophenyl)-1-oxophthalazin-2-yl]-N-pyridin-3-ylacetamide chemical structure, C21H15N5O4, CAS 702647-29-8
2-[4-(3-Nitrophenyl)-1-oxophthalazin-2-yl]-N-pyridin-3-ylacetamide
CAS 702647-29-8C21H15N5O4
2-(4,5-Dimethoxy-2-nitrophenyl)-1H-imidazo(4,5-B)phenazine chemical structure, C21H15N5O4, CAS 303059-18-9
2-(4,5-Dimethoxy-2-nitrophenyl)-1H-imidazo(4,5-B)phenazine
CAS 303059-18-9C21H15N5O4
Pnri-299 chemical structure, C21H15N5O4, CAS 550368-41-7
Pnri-299
CAS 550368-41-7C21H15N5O4
N'-[(E)-(2-Hydroxynaphthalen-1-yl)methylidene]-3-(3-nitrophenyl)-1H-pyrazole-5-carbohydrazide chemical structure, C21H15N5O4, CAS 1284280-65-4
N'-[(E)-(2-Hydroxynaphthalen-1-yl)methylidene]-3-(3-nitrophenyl)-1H-pyrazole-5-carbohydrazide
CAS 1284280-65-4C21H15N5O4
N-(6-Benzoyl-1H-benzimidazol-2-yl)-N'-(4-nitrophenyl)urea chemical structure, C21H15N5O4, CAS 89597-93-3
N-(6-Benzoyl-1H-benzimidazol-2-yl)-N'-(4-nitrophenyl)urea
CAS 89597-93-3C21H15N5O4
(E)-3-(Benzo[d][1,3]dioxol-5-yl)-N-(4-oxo-1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)acrylamide chemical structure, C21H15N5O4, CAS 899946-22-6
(E)-3-(Benzo[d][1,3]dioxol-5-yl)-N-(4-oxo-1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)acrylamide
CAS 899946-22-6C21H15N5O4
2,6-Dioxo-N-(2-(6-oxo-1,6-dihydropyridazin-3-yl)phenyl)-1-phenyl-1,2,3,6-tetrahydropyrimidine-4-carboxamide chemical structure, C21H15N5O4, CAS 1428379-60-5
2,6-Dioxo-N-(2-(6-oxo-1,6-dihydropyridazin-3-yl)phenyl)-1-phenyl-1,2,3,6-tetrahydropyrimidine-4-carboxamide
CAS 1428379-60-5C21H15N5O4
N-(3-(Furan-2-yl)-1-(4-methyl-6-oxo-1,6-dihydropyrimidin-2-yl)-1H-pyrazol-5-yl)benzofuran-2-carboxamide chemical structure, C21H15N5O4, CAS 1207027-14-2
N-(3-(Furan-2-yl)-1-(4-methyl-6-oxo-1,6-dihydropyrimidin-2-yl)-1H-pyrazol-5-yl)benzofuran-2-carboxamide
CAS 1207027-14-2C21H15N5O4
N-[4-(2-Methyl-4-oxopyrido[2,3-d]pyrimidin-3-yl)phenyl]-2-nitrobenzamide chemical structure, C21H15N5O4, CAS 1003555-40-5
N-[4-(2-Methyl-4-oxopyrido[2,3-d]pyrimidin-3-yl)phenyl]-2-nitrobenzamide
CAS 1003555-40-5C21H15N5O4
N-(3-(2-Methyl-4-oxopyrido[2,3-d]pyrimidin-3(4H)-yl)phenyl)-4-nitrobenzamide chemical structure, C21H15N5O4, CAS 1002889-36-2
N-(3-(2-Methyl-4-oxopyrido[2,3-d]pyrimidin-3(4H)-yl)phenyl)-4-nitrobenzamide
CAS 1002889-36-2C21H15N5O4
4-(4-Benzoylamino-phenylamino)-7-oxo-7,8-dihydro-pyrido[2,3-d]pyrimidine-6-carboxylic acid chemical structure, C21H15N5O4, CAS 1203510-20-6
4-(4-Benzoylamino-phenylamino)-7-oxo-7,8-dihydro-pyrido[2,3-d]pyrimidine-6-carboxylic acid
CAS 1203510-20-6C21H15N5O4
4-((2-Furanyl((2-methyl-4-oxo-3(4H)-quinazolinyl)azo)methylene)amino)benzoic acid chemical structure, C21H15N5O4, CAS 134895-20-8
4-((2-Furanyl((2-methyl-4-oxo-3(4H)-quinazolinyl)azo)methylene)amino)benzoic acid
CAS 134895-20-8C21H15N5O4
7-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylic acid chemical structure, C21H15N5O4, CAS 2243510-48-5
7-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylic acid
CAS 2243510-48-5C21H15N5O4
4-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)imidazo[2,1-c][1,2,4]triazine-3-carboxylic acid chemical structure, C21H15N5O4, CAS 2580253-14-9
4-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)imidazo[2,1-c][1,2,4]triazine-3-carboxylic acid
CAS 2580253-14-9C21H15N5O4
5-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-[1,2,4]triazolo[4,3-a]pyrimidine-6-carboxylic acid chemical structure, C21H15N5O4, CAS 2580255-38-3
5-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-[1,2,4]triazolo[4,3-a]pyrimidine-6-carboxylic acid
CAS 2580255-38-3C21H15N5O4
4-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)pyrazolo[1,5-a][1,3,5]triazine-8-carboxylic acid chemical structure, C21H15N5O4, CAS 2580240-76-0
4-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)pyrazolo[1,5-a][1,3,5]triazine-8-carboxylic acid
CAS 2580240-76-0C21H15N5O4
5-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylic acid chemical structure, C21H15N5O4, CAS 2580239-63-8
5-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylic acid
CAS 2580239-63-8C21H15N5O4
6-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-1H-purine-2-carboxylic acid chemical structure, C21H15N5O4, CAS 2383065-89-0
6-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-1H-purine-2-carboxylic acid
CAS 2383065-89-0C21H15N5O4
4-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)pyrazolo[1,5-a][1,3,5]triazine-7-carboxylic acid chemical structure, C21H15N5O4, CAS 2639424-91-0
4-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)pyrazolo[1,5-a][1,3,5]triazine-7-carboxylic acid
CAS 2639424-91-0C21H15N5O4
2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylic acid chemical structure, C21H15N5O4, CAS 2639462-77-2
2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylic acid
CAS 2639462-77-2C21H15N5O4
4-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-1H-pyrazolo[3,4-d]pyrimidine-3-carboxylic acid chemical structure, C21H15N5O4, CAS 2763912-10-1
4-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-1H-pyrazolo[3,4-d]pyrimidine-3-carboxylic acid
CAS 2763912-10-1C21H15N5O4
4-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)imidazo[2,1-f][1,2,4]triazine-7-carboxylic acid chemical structure, C21H15N5O4, CAS 2913423-32-0
4-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)imidazo[2,1-f][1,2,4]triazine-7-carboxylic acid
CAS 2913423-32-0C21H15N5O4

Frequently asked questions

What is the molar mass of C21H15N5O4?

The molar mass of C21H15N5O4 is 401.38 g/mol, calculated from standard atomic weights for 21 carbon atoms, 15 hydrogen atoms, 5 nitrogen atoms and 4 oxygen atoms. The monoisotopic mass is 401.1124 Da.

How many compounds have the formula C21H15N5O4?

CompoundList lists 22 compounds with the molecular formula C21H15N5O4, including 2-[4-(3-Nitrophenyl)-1-oxophthalazin-2-yl]-N-pyridin-3-ylacetamide, 2-(4,5-Dimethoxy-2-nitrophenyl)-1H-imidazo(4,5-B)phenazine, Pnri-299. 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 C21H15N5O4?

C21H15N5O4 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.