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Molecular formula

C12H9N5O3

36 compounds have this formula on CompoundList.

Molar mass
271.24g/mol
Monoisotopic mass
271.0705Da
Atoms
29
Elements
4
Rings plus double bonds
11

The formula C12H9N5O3 describes a molecule made of 12 carbon atoms, 9 hydrogen atoms, 5 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 × 1253.14%
    12.011 × 12 = 144.132 g/mol
  • H Hydrogen × 93.34%
    1.008 × 9 = 9.072 g/mol
  • N Nitrogen × 525.82%
    14.007 × 5 = 70.035 g/mol
  • O Oxygen × 317.70%
    15.999 × 3 = 47.997 g/mol
Look up another formula

Compounds with the formula C12H9N5O3

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

Showing 1 to 36 of 36 compounds

Cyadox chemical structure, C12H9N5O3, CAS 65884-46-0
Cyadox
CAS 65884-46-0C12H9N5O3
9H-Purin-6-ol, 9-(p-nitrobenzyl)- chemical structure, C12H9N5O3, CAS 13233-86-8
9H-Purin-6-ol, 9-(p-nitrobenzyl)-
CAS 13233-86-8C12H9N5O3
N-(2-Cyanophenyl)-2-methyl-4-nitropyrazole-3-carboxamide chemical structure, C12H9N5O3, CAS 328251-83-8
N-(2-Cyanophenyl)-2-methyl-4-nitropyrazole-3-carboxamide
CAS 328251-83-8C12H9N5O3
N-(4-Cyanophenyl)-2-(4-nitroimidazol-1-yl)acetamide chemical structure, C12H9N5O3, CAS 725696-45-7
N-(4-Cyanophenyl)-2-(4-nitroimidazol-1-yl)acetamide
CAS 725696-45-7C12H9N5O3
N-[(E)-(2-Nitrophenyl)methylideneamino]pyrazine-2-carboxamide chemical structure, C12H9N5O3, CAS 1206198-61-9
N-[(E)-(2-Nitrophenyl)methylideneamino]pyrazine-2-carboxamide
CAS 1206198-61-9C12H9N5O3
N-[(E)-(4-Nitrophenyl)methylideneamino]pyrazine-2-carboxamide chemical structure, C12H9N5O3, CAS 1206198-63-1
N-[(E)-(4-Nitrophenyl)methylideneamino]pyrazine-2-carboxamide
CAS 1206198-63-1C12H9N5O3
N-(Furan-2-ylmethyl)-3-(pyrazin-2-yl)-1,2,4-oxadiazole-5-carboxamide chemical structure, C12H9N5O3, CAS 1219914-35-8
N-(Furan-2-ylmethyl)-3-(pyrazin-2-yl)-1,2,4-oxadiazole-5-carboxamide
CAS 1219914-35-8C12H9N5O3
3,6-Dioxido-7-phenyl-4,5-dihydrotriazolo[4,5-e][2,1,3]benzoxadiazole-3,6-diium chemical structure, C12H9N5O3, CAS 5256-29-1
3,6-Dioxido-7-phenyl-4,5-dihydrotriazolo[4,5-e][2,1,3]benzoxadiazole-3,6-diium
CAS 5256-29-1C12H9N5O3
N-(5-(6-Methylpyridin-2-yl)-1,3,4-oxadiazol-2-yl)isoxazole-5-carboxamide chemical structure, C12H9N5O3, CAS 1351641-78-5
N-(5-(6-Methylpyridin-2-yl)-1,3,4-oxadiazol-2-yl)isoxazole-5-carboxamide
CAS 1351641-78-5C12H9N5O3
5-[(4-Oxopyrido[2,3-d]pyrimidin-8-yl)methyl]-1H-pyrimidine-2,4-dione chemical structure, C12H9N5O3, CAS 64600-53-9
5-[(4-Oxopyrido[2,3-d]pyrimidin-8-yl)methyl]-1H-pyrimidine-2,4-dione
CAS 64600-53-9C12H9N5O3
2-Amino-3-nitro-5-phenylpyrazolo[1,5-a]pyrimidin-7(1H)-one chemical structure, C12H9N5O3, CAS 201221-99-0
2-Amino-3-nitro-5-phenylpyrazolo[1,5-a]pyrimidin-7(1H)-one
CAS 201221-99-0C12H9N5O3
2-(1,3-Dioxo-1,3-dihydro-2H-isoindol-2-yl)-N-4H-1,2,4-triazol-4-ylacetamide chemical structure, C12H9N5O3, CAS 326012-06-0
2-(1,3-Dioxo-1,3-dihydro-2H-isoindol-2-yl)-N-4H-1,2,4-triazol-4-ylacetamide
CAS 326012-06-0C12H9N5O3
N-(1-Methyl-1H-tetrazol-5-yl)-4-oxo-4H-1-benzopyran-2-carboxamide chemical structure, C12H9N5O3, CAS 53542-73-7
N-(1-Methyl-1H-tetrazol-5-yl)-4-oxo-4H-1-benzopyran-2-carboxamide
CAS 53542-73-7C12H9N5O3
1-[3-(3-Methyl-1,2,4-oxadiazol-5-yl)pyridin-2-yl]-1H-imidazole-4-carboxylic acid chemical structure, C12H9N5O3, CAS 1239851-29-6
1-[3-(3-Methyl-1,2,4-oxadiazol-5-yl)pyridin-2-yl]-1H-imidazole-4-carboxylic acid
CAS 1239851-29-6C12H9N5O3
1-[4-(3-Methyl-1,2,4-oxadiazol-5-yl)pyridin-2-yl]-1H-imidazole-4-carboxylic acid chemical structure, C12H9N5O3, CAS 1239845-07-8
1-[4-(3-Methyl-1,2,4-oxadiazol-5-yl)pyridin-2-yl]-1H-imidazole-4-carboxylic acid
CAS 1239845-07-8C12H9N5O3
2-(1-Methyl-5-nitro-1H-imidazol-2-yl)quinazolin-4(1H)-one chemical structure, C12H9N5O3, CAS 61717-33-7
2-(1-Methyl-5-nitro-1H-imidazol-2-yl)quinazolin-4(1H)-one
CAS 61717-33-7C12H9N5O3
6-Methyl-1-(4-nitrophenyl)-1H,4H,7H-pyrazolo[3,4-d]pyrimidin-4-one chemical structure, C12H9N5O3, CAS 104912-51-8
6-Methyl-1-(4-nitrophenyl)-1H,4H,7H-pyrazolo[3,4-d]pyrimidin-4-one
CAS 104912-51-8C12H9N5O3
5-[(4-Oxopyrido[2,3-d]pyrimidin-3-yl)methyl]-1H-pyrimidine-2,4-dione chemical structure, C12H9N5O3, CAS 64600-55-1
5-[(4-Oxopyrido[2,3-d]pyrimidin-3-yl)methyl]-1H-pyrimidine-2,4-dione
CAS 64600-55-1C12H9N5O3
1H-Pyrazole-4-carboxylic acid, 1-methyl-5-(4-oxo-1,2,3-benzotriazin-3(4H)-yl)- chemical structure, C12H9N5O3, CAS 131073-50-2
1H-Pyrazole-4-carboxylic acid, 1-methyl-5-(4-oxo-1,2,3-benzotriazin-3(4H)-yl)-
CAS 131073-50-2C12H9N5O3
6-Methyl-5-(4-oxo-1,2,3-benzotriazin-3(4H)-yl)pyrimidine-2,4(1H,3H)-dione chemical structure, C12H9N5O3, CAS 56742-21-3
6-Methyl-5-(4-oxo-1,2,3-benzotriazin-3(4H)-yl)pyrimidine-2,4(1H,3H)-dione
CAS 56742-21-3C12H9N5O3
2-{[(4-Nitrobenzyl)oxy]amino}-5-pyrimidinecarbonitrile chemical structure, C12H9N5O3, CAS 400085-98-5
2-{[(4-Nitrobenzyl)oxy]amino}-5-pyrimidinecarbonitrile
CAS 400085-98-5C12H9N5O3
1-[5-(3-Methyl-1,2,4-oxadiazol-5-yl)pyridin-2-yl]-1H-imidazole-4-carboxylic acid chemical structure, C12H9N5O3, CAS 1239757-48-2
1-[5-(3-Methyl-1,2,4-oxadiazol-5-yl)pyridin-2-yl]-1H-imidazole-4-carboxylic acid
CAS 1239757-48-2C12H9N5O3
3-[(1Z)-2-Amino-1,2-dicyanoeth-1-en-1-yl]-1-(2H-1,3-benzodioxol-5-yl)urea chemical structure, C12H9N5O3, CAS 2097941-47-2
3-[(1Z)-2-Amino-1,2-dicyanoeth-1-en-1-yl]-1-(2H-1,3-benzodioxol-5-yl)urea
CAS 2097941-47-2C12H9N5O3
4-(2-Amino-6-oxo-1H-purin-9-yl)benzoic acid chemical structure, C12H9N5O3, CAS 19188-42-2
4-(2-Amino-6-oxo-1H-purin-9-yl)benzoic acid
CAS 19188-42-2C12H9N5O3

Frequently asked questions

What is the molar mass of C12H9N5O3?

The molar mass of C12H9N5O3 is 271.24 g/mol, calculated from standard atomic weights for 12 carbon atoms, 9 hydrogen atoms, 5 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 271.0705 Da.

How many compounds have the formula C12H9N5O3?

CompoundList lists 36 compounds with the molecular formula C12H9N5O3, including Cyadox, 9H-Purin-6-ol, 9-(p-nitrobenzyl)-, N-(2-Cyanophenyl)-2-methyl-4-nitropyrazole-3-carboxamide. 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 C12H9N5O3?

C12H9N5O3 has a degree of unsaturation of 11. 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.