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Molecular formula

C8H9N5O

133 compounds have this formula on CompoundList.

Molar mass
191.19g/mol
Monoisotopic mass
191.0807Da
Atoms
23
Elements
4
Rings plus double bonds
7

The formula C8H9N5O describes a molecule made of 8 carbon atoms, 9 hydrogen atoms, 5 nitrogen atoms and 1 oxygen atom. 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 × 850.26%
    12.011 × 8 = 96.088 g/mol
  • H Hydrogen × 94.74%
    1.008 × 9 = 9.072 g/mol
  • N Nitrogen × 536.63%
    14.007 × 5 = 70.035 g/mol
  • O Oxygen × 18.37%
    15.999 × 1 = 15.999 g/mol
Look up another formula

Compounds with the formula C8H9N5O

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

Showing 101 to 133 of 133 compounds

7-(Aminomethyl)pyrazolo[1,5-a]pyrimidine-3-carboxamide chemical structure, C8H9N5O, CAS 1693985-12-4
7-(Aminomethyl)pyrazolo[1,5-a]pyrimidine-3-carboxamide
CAS 1693985-12-4C8H9N5O
6-(5-Amino-1-methyl-1H-pyrazol-3-yl)-2,3-dihydropyridazin-3-one chemical structure, C8H9N5O, CAS 1700190-03-9
6-(5-Amino-1-methyl-1H-pyrazol-3-yl)-2,3-dihydropyridazin-3-one
CAS 1700190-03-9C8H9N5O
N-(8-Amino-[1,2,4]triazolo[1,5-a]pyridin-2-yl)acetamide chemical structure, C8H9N5O, CAS 1788958-49-5
N-(8-Amino-[1,2,4]triazolo[1,5-a]pyridin-2-yl)acetamide
CAS 1788958-49-5C8H9N5O
4-(Azidomethyl)-N-hydroxybenzenecarboximidamide chemical structure, C8H9N5O
4-(Azidomethyl)-N-hydroxybenzenecarboximidamide
C8H9N5O
2-Amino-6-(aminomethyl)-7H,8H-pyrido[2,3-d]pyrimidin-7-one chemical structure, C8H9N5O, CAS 2060063-49-0
2-Amino-6-(aminomethyl)-7H,8H-pyrido[2,3-d]pyrimidin-7-one
CAS 2060063-49-0C8H9N5O
6-Amino-2-methylpyrazolo[1,5-a]pyrimidine-3-carboxamide chemical structure, C8H9N5O, CAS 2060058-37-7
6-Amino-2-methylpyrazolo[1,5-a]pyrimidine-3-carboxamide
CAS 2060058-37-7C8H9N5O
2-Amino-2-(pyrrolo[2,1-f][1,2,4]triazin-2-yl)acetamide chemical structure, C8H9N5O, CAS 2089664-78-6
2-Amino-2-(pyrrolo[2,1-f][1,2,4]triazin-2-yl)acetamide
CAS 2089664-78-6C8H9N5O
6,7,8,9-Tetrahydropyrazino[1,2-e]purin-4(1H)-one chemical structure, C8H9N5O, CAS 17796-21-3
6,7,8,9-Tetrahydropyrazino[1,2-e]purin-4(1H)-one
CAS 17796-21-3C8H9N5O
2-Hydrazinyl-6-(3-methyl-1,2,4-oxadiazol-5-yl)pyridine chemical structure, C8H9N5O, CAS 2415628-77-0
2-Hydrazinyl-6-(3-methyl-1,2,4-oxadiazol-5-yl)pyridine
CAS 2415628-77-0C8H9N5O
5-(1-Ethyl-1H-1,2,4-triazol-5-yl)pyrazin-2-ol chemical structure, C8H9N5O, CAS 2137663-60-4
5-(1-Ethyl-1H-1,2,4-triazol-5-yl)pyrazin-2-ol
CAS 2137663-60-4C8H9N5O
7-Amino-6-cyclopropyl-4H,5H-[1,2,4]triazolo[1,5-a]pyrimidin-5-one chemical structure, C8H9N5O, CAS 2138030-39-2
7-Amino-6-cyclopropyl-4H,5H-[1,2,4]triazolo[1,5-a]pyrimidin-5-one
CAS 2138030-39-2C8H9N5O
2-Amino-6-(1-methyl-1H-pyrazol-5-yl)-3,4-dihydropyrimidin-4-one chemical structure, C8H9N5O, CAS 2138025-87-1
2-Amino-6-(1-methyl-1H-pyrazol-5-yl)-3,4-dihydropyrimidin-4-one
CAS 2138025-87-1C8H9N5O
2-Amino-N-methyl-[1,2,4]triazolo[1,5-a]pyridine-6-carboxamide chemical structure, C8H9N5O, CAS 2166533-46-4
2-Amino-N-methyl-[1,2,4]triazolo[1,5-a]pyridine-6-carboxamide
CAS 2166533-46-4C8H9N5O
3-(Azetidin-3-yl)-5-(1H-pyrazol-4-yl)-1,2,4-oxadiazole chemical structure, C8H9N5O, CAS 2172222-20-5
3-(Azetidin-3-yl)-5-(1H-pyrazol-4-yl)-1,2,4-oxadiazole
CAS 2172222-20-5C8H9N5O
3-(Azetidin-3-yl)-5-(1H-imidazol-2-yl)-1,2,4-oxadiazole chemical structure, C8H9N5O, CAS 2172222-36-3
3-(Azetidin-3-yl)-5-(1H-imidazol-2-yl)-1,2,4-oxadiazole
CAS 2172222-36-3C8H9N5O
N-{[6-(1H-1,2,4-triazol-1-yl)pyridin-3-yl]methyl}hydroxylamine chemical structure, C8H9N5O, CAS 2229596-21-6
N-{[6-(1H-1,2,4-triazol-1-yl)pyridin-3-yl]methyl}hydroxylamine
CAS 2229596-21-6C8H9N5O
3-{3H-[1,2,3]Triazolo[4,5-b]pyridin-6-yloxy}azetidine chemical structure, C8H9N5O, CAS 2228937-19-5
3-{3H-[1,2,3]Triazolo[4,5-b]pyridin-6-yloxy}azetidine
CAS 2228937-19-5C8H9N5O
3-{3H-[1,2,3]Triazolo[4,5-b]pyridin-6-yl}azetidin-3-ol chemical structure, C8H9N5O, CAS 2229174-32-5
3-{3H-[1,2,3]Triazolo[4,5-b]pyridin-6-yl}azetidin-3-ol
CAS 2229174-32-5C8H9N5O
3-Oxo-1-[2-(1H-1,2,3,4-tetrazol-1-yl)ethyl]cyclobutane-1-carbonitrile chemical structure, C8H9N5O, CAS 2228489-97-0
3-Oxo-1-[2-(1H-1,2,3,4-tetrazol-1-yl)ethyl]cyclobutane-1-carbonitrile
CAS 2228489-97-0C8H9N5O
N-{[3-(1H-1,2,3,4-tetrazol-5-yl)phenyl]methyl}hydroxylamine chemical structure, C8H9N5O, CAS 2228380-58-1
N-{[3-(1H-1,2,3,4-tetrazol-5-yl)phenyl]methyl}hydroxylamine
CAS 2228380-58-1C8H9N5O
2-Amino-1-{3H-[1,2,3]triazolo[4,5-b]pyridin-6-yl}propan-1-one chemical structure, C8H9N5O, CAS 2228506-38-3
2-Amino-1-{3H-[1,2,3]triazolo[4,5-b]pyridin-6-yl}propan-1-one
CAS 2228506-38-3C8H9N5O
3-Amino-1-{3H-[1,2,3]triazolo[4,5-b]pyridin-6-yl}propan-1-one chemical structure, C8H9N5O, CAS 2228436-82-4
3-Amino-1-{3H-[1,2,3]triazolo[4,5-b]pyridin-6-yl}propan-1-one
CAS 2228436-82-4C8H9N5O
4-Cyclopropoxy-1H-pyrazolo[3,4-d]pyrimidin-6-amine chemical structure, C8H9N5O, CAS 2138261-23-9
4-Cyclopropoxy-1H-pyrazolo[3,4-d]pyrimidin-6-amine
CAS 2138261-23-9C8H9N5O
2-(Methylamino)-1-{3H-[1,2,3]triazolo[4,5-b]pyridin-6-yl}ethan-1-one chemical structure, C8H9N5O, CAS 2228531-99-3
2-(Methylamino)-1-{3H-[1,2,3]triazolo[4,5-b]pyridin-6-yl}ethan-1-one
CAS 2228531-99-3C8H9N5O

Frequently asked questions

What is the molar mass of C8H9N5O?

The molar mass of C8H9N5O is 191.19 g/mol, calculated from standard atomic weights for 8 carbon atoms, 9 hydrogen atoms, 5 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 191.0807 Da.

How many compounds have the formula C8H9N5O?

CompoundList lists 133 compounds with the molecular formula C8H9N5O, including 7-(Aminomethyl)pyrazolo[1,5-a]pyrimidine-3-carboxamide, 6-(5-Amino-1-methyl-1H-pyrazol-3-yl)-2,3-dihydropyridazin-3-one, N-(8-Amino-[1,2,4]triazolo[1,5-a]pyridin-2-yl)acetamide. 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 C8H9N5O?

C8H9N5O has a degree of unsaturation of 7. 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.