C12H9N5O
38 compounds have this formula on CompoundList.
- Molar mass
- 239.24g/mol
- Monoisotopic mass
- 239.0807Da
- Atoms
- 27
- Elements
- 4
- Rings plus double bonds
- 11
The formula C12H9N5O describes a molecule made of 12 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 × 1260.25%12.011 × 12 = 144.132 g/mol
- H Hydrogen × 93.79%1.008 × 9 = 9.072 g/mol
- N Nitrogen × 529.27%14.007 × 5 = 70.035 g/mol
- O Oxygen × 16.69%15.999 × 1 = 15.999 g/mol
Compounds with the formula C12H9N5O
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 38 of 38 compounds
![N-(Pyridin-3-yl)pyrazolo[1,5-a]pyrimidine-3-carboxamide chemical structure, C12H9N5O, CAS 717831-80-6](/s/PAOLMFBRXWKLAD-UHFFFAOYSA-N.svg)
![6-[(E)-Hydrazinylidenemethyl]-2-oxo-5-pyridin-4-yl-1H-pyridine-3-carbonitrile chemical structure, C12H9N5O, CAS 98293-88-0](/s/KJRKRHGTENMKAI-FRKPEAEDSA-N.svg)
![2-(3H-[1,2,3]Triazolo[4,5-b]pyridin-3-yl)benzamide chemical structure, C12H9N5O, CAS 62052-32-8](/s/WGYZBDIXJNXNLI-UHFFFAOYSA-N.svg)
![3-(3H-[1,2,3]Triazolo[4,5-b]pyridin-3-yl)benzamide chemical structure, C12H9N5O, CAS 62052-33-9](/s/LXLOFOZTYIFCHV-UHFFFAOYSA-N.svg)
![4-[3-(4-Pyridyl)-1H-1,2,4-triazol-5-yl]pyridinium-1-olate chemical structure, C12H9N5O, CAS 36770-53-3](/s/SLDPUWPRJTUTMJ-UHFFFAOYSA-N.svg)
![4'-(Furan-2-yl)-[4,5'-bipyrimidin]-2'-amine chemical structure, C12H9N5O, CAS 851371-58-9](/s/QGQIVJFMLHWCGD-UHFFFAOYSA-N.svg)
![7-(Pyridin-3-yl)pyrazolo[1,5-a]pyrimidine-3-carboxamide chemical structure, C12H9N5O, CAS 79571-36-1](/s/WHYJXQDNGUFTQA-UHFFFAOYSA-N.svg)
![3-(Pyridin-3-yl)pyrazolo[1,5-a]pyrimidine-6-carbaldehyde oxime chemical structure, C12H9N5O, CAS 1111597-82-0](/s/PKXVSIDTWMRQNT-FZSIALSZSA-N.svg)
![4,5,6,7-Tetrahydro-5-oxo-2-(3-pyridinyl)pyrazolo[1,5-a]pyrimidine-3-carbonitrile chemical structure, C12H9N5O, CAS 1428432-93-2](/s/HTLWCCOPUZBKOW-UHFFFAOYSA-N.svg)
![N-(Pyrazolo[1,5-a]pyrimidin-6-yl)nicotinamide chemical structure, C12H9N5O, CAS 2034480-98-1](/s/RLLLWEQABLAGEN-UHFFFAOYSA-N.svg)
![4-Hydroxy-6-(1-methyl-1H-pyrazol-4-yl)pyrazolo[1,5-a]pyridine-3-carbonitrile chemical structure, C12H9N5O, CAS 2068064-96-8](/s/MSDQTVMMGVHLDI-UHFFFAOYSA-N.svg)
![1-Phenyl-1H-pyrazolo[3,4-d]pyrimidine-4-carboxamide chemical structure, C12H9N5O, CAS 68380-48-3](/s/KSYXWTBSNHPNLV-UHFFFAOYSA-N.svg)
- 7-Amino-2-(4-pyridinyl)pyrazolo[1,5-a]pyrimidine-6-carboxaldehyde1245832-86-3C12H9N5O
- 6-Methyl-3-phenylpyridazino[4,5-e][1,2,4]triazin-5(6H)-one92931-29-8C12H9N5O
- 3-Methyl-7-phenyl-4H-[1,2,4]triazino[4,3-b][1,2,4]triazin-4-one88282-06-8C12H9N5O
- 4-[(4-Cyanopyrimidin-2-yl)amino]benzamide1984468-42-9C12H9N5O
- 5-(Nitrosomethylidene)-1-phenyl-4,5-dihydro-1H-pyrazolo[3,4-b]pyrazine91321-69-6C12H9N5O
- 2-(4-(Benzo[c][1,2,5]oxadiazol-4-yl)-1H-pyrazol-1-yl)propanenitrile2637259-94-8C12H9N5O
- 3-Oxo-1-[3-(1H-1,2,3,4-tetrazol-5-yl)phenyl]cyclobutane-1-carbonitrile2228383-00-2C12H9N5O
- 3-Oxo-1-[6-(1H-1,2,4-triazol-1-yl)pyridin-3-yl]cyclobutane-1-carbonitrile2228581-08-4C12H9N5O
- 1-(6-Cyanopyrazin-2-yl)-3-phenylurea2839144-50-0C12H9N5O
- 2-[(2-Cyanopyrimidin-4-yl)amino]benzamide2445731-47-3C12H9N5O
- 4-[(2-Cyanopyrimidin-4-yl)amino]benzamide2436649-93-1C12H9N5O
- 2-[(4-Cyanopyrimidin-2-yl)amino]benzamide2445478-74-8C12H9N5O
- N-(1H-Imidazo[4,5-d]pyridazin-4-yl)benzamide108880-46-2C12H9N5O
- 1H-Pyrazole-3-carboxamide,n-5-quinoxalinyl-881668-26-4C12H9N5O
Frequently asked questions
What is the molar mass of C12H9N5O?
The molar mass of C12H9N5O is 239.24 g/mol, calculated from standard atomic weights for 12 carbon atoms, 9 hydrogen atoms, 5 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 239.0807 Da.
How many compounds have the formula C12H9N5O?
CompoundList lists 38 compounds with the molecular formula C12H9N5O, including 6-Benzamidopurine, 4-(1-Prop-2-ynylbenzimidazol-2-yl)-1,2,5-oxadiazol-3-amine, N-(Pyridin-3-yl)pyrazolo[1,5-a]pyrimidine-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 C12H9N5O?
C12H9N5O 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.