Molecular formula
C8H9N3O
678 compounds have this formula on CompoundList.
- Molar mass
- 163.18g/mol
- Monoisotopic mass
- 171.1248Da
- Atoms
- 21
- Elements
- 4
- Rings plus double bonds
- 6
The formula C8H9N3O describes a molecule made of 8 carbon atoms, 9 hydrogen atoms, 3 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 × 858.88%12.011 × 8 = 96.088 g/mol
- H Hydrogen × 95.56%1.008 × 9 = 9.072 g/mol
- N Nitrogen × 325.75%14.007 × 3 = 42.021 g/mol
- O Oxygen × 19.80%15.999 × 1 = 15.999 g/mol
Look up another formula
Compounds with the formula C8H9N3O
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 601 to 678 of 678 compounds
![6',7'-Dihydrospiro[azetidine-3,5'-pyrrolo[1,2-a]imidazol]-7'-one chemical structure, C8H9N3O, CAS 2680701-45-3](/s/WNXXUIPILCXSKN-UHFFFAOYSA-N.svg)
6',7'-Dihydrospiro[azetidine-3,5'-pyrrolo[1,2-a]imidazol]-7'-one
CAS 2680701-45-3C8H9N3O
5-(2-Methylfuran-3-yl)-1H-imidazol-2-amine
CAS 2229352-85-4C8H9N3O
![3-Ethynyl-5H,6H,7H,9H-[1,2,4]triazolo[3,4-c][1,4]oxazepine chemical structure, C8H9N3O, CAS 2870666-62-7](/s/RGVPRXFTDXHYIJ-UHFFFAOYSA-N.svg)
3-Ethynyl-5H,6H,7H,9H-[1,2,4]triazolo[3,4-c][1,4]oxazepine
CAS 2870666-62-7C8H9N3O
![2-{1H-Pyrazolo[4,3-b]pyridin-1-yl}ethan-1-ol chemical structure, C8H9N3O, CAS 2169016-15-1](/s/ITYATKWJEBABKY-UHFFFAOYSA-N.svg)
2-{1H-Pyrazolo[4,3-b]pyridin-1-yl}ethan-1-ol
CAS 2169016-15-1C8H9N3O
5-(1-Isocyanatoethyl)-4-methylpyrimidine
CAS 2649054-09-9C8H9N3O
![2,8-Bis(methyl-d3)imidazo[1,2-b]pyridazin-3,7-d2-6-ol chemical structure, C8H9N3O, CAS 2645416-15-3](/s/VTPRWTFAWXNICO-PIODKIDGSA-N.svg)
2,8-Bis(methyl-d3)imidazo[1,2-b]pyridazin-3,7-d2-6-ol
CAS 2645416-15-3C8H9N3O
![2,8-Dimethylimidazo[1,2-b]pyridazin-3,7-d2-6-ol chemical structure, C8H9N3O, CAS 2645419-90-3](/s/VTPRWTFAWXNICO-NMQOAUCRSA-N.svg)
2,8-Dimethylimidazo[1,2-b]pyridazin-3,7-d2-6-ol
CAS 2645419-90-3C8H9N3O
![2,8-Dimethylimidazo[1,2-b]pyridazin-6-ol chemical structure, C8H9N3O, CAS 2645416-64-2](/s/VTPRWTFAWXNICO-UHFFFAOYSA-N.svg)
2,8-Dimethylimidazo[1,2-b]pyridazin-6-ol
CAS 2645416-64-2C8H9N3O
![4-Methoxy-2-methyl-5H-pyrrolo[3,2-d]pyrimidine chemical structure, C8H9N3O, CAS 148214-85-1](/s/UOSUSTODWRHCEF-UHFFFAOYSA-N.svg)
4-Methoxy-2-methyl-5H-pyrrolo[3,2-d]pyrimidine
CAS 148214-85-1C8H9N3O
5-Methoxy-1H-indazol-1-amine
CAS 246181-57-7C8H9N3O
3-(Furan-2-yl)-5-methyl-1H-pyrazol-4-amine
CAS 681180-64-3C8H9N3O
7-Amino-2,3-dihydro-1,8-naphthyridin-4(1H)-one
CAS 60943-47-7C8H9N3O
(S)-(2-Methylaziridin-1-yl)(pyrazin-2-yl)methanone
CAS 73058-39-6C8H9N3O
5-Acetyl-3,3-dimethyl-3H-pyrazole-4-carbonitrile
CAS 86557-02-0C8H9N3O
![5,7-Dimethylisoxazolo[3,4-c]pyridin-3(1H)-imine chemical structure, C8H9N3O, CAS 95109-28-7](/s/XLTJDGVASUUZDF-UHFFFAOYSA-N.svg)
5,7-Dimethylisoxazolo[3,4-c]pyridin-3(1H)-imine
CAS 95109-28-7C8H9N3O
3-Pent-4-ynoxy-1,2,4-triazine
CAS 105783-92-4C8H9N3O
2-Amino-2-phenyliminoacetamide
CAS 71740-32-4C8H9N3O
(4-Methyl-1,3-benzoxazol-2-yl)hydrazine
CAS 1466681-35-5C8H9N3O
![N-(1H-Benzo[d]imidazol-2-yl)-N-methylhydroxylamine chemical structure, C8H9N3O, CAS 362599-89-1](/s/KIPIXNHRXWKHKL-UHFFFAOYSA-N.svg)
N-(1H-Benzo[d]imidazol-2-yl)-N-methylhydroxylamine
CAS 362599-89-1C8H9N3O
![O-((1H-Benzo[d]imidazol-2-yl)methyl)hydroxylamine chemical structure, C8H9N3O, CAS 628703-58-2](/s/TZQVHYCYAFCDRP-UHFFFAOYSA-N.svg)
O-((1H-Benzo[d]imidazol-2-yl)methyl)hydroxylamine
CAS 628703-58-2C8H9N3O
![2-Amino-5-methyl-1H-benzo[d]imidazol-6-ol chemical structure, C8H9N3O, CAS 419564-12-8](/s/ILOXYAKWBQAPBX-UHFFFAOYSA-N.svg)
2-Amino-5-methyl-1H-benzo[d]imidazol-6-ol
CAS 419564-12-8C8H9N3O
![1-Amino-2-methyl-1H-benzo[d]imidazol-6-ol chemical structure, C8H9N3O, CAS 158591-13-0](/s/ILRTXHSELZPUOB-UHFFFAOYSA-N.svg)
1-Amino-2-methyl-1H-benzo[d]imidazol-6-ol
CAS 158591-13-0C8H9N3O
![1H-Benzo[d]imidazol-2(3H)-one O-methyl oxime chemical structure, C8H9N3O, CAS 111667-51-7](/s/FWRFEZQZCWLDPD-UHFFFAOYSA-N.svg)
1H-Benzo[d]imidazol-2(3H)-one O-methyl oxime
CAS 111667-51-7C8H9N3O
![4-Methoxy-1H-benzo[d]imidazol-6-amine chemical structure, C8H9N3O, CAS 101257-94-7](/s/GUQQUHGLEGUTFX-UHFFFAOYSA-N.svg)
4-Methoxy-1H-benzo[d]imidazol-6-amine
CAS 101257-94-7C8H9N3O
- 4-Cyano-1-methyl-4H-pyridine-3-carboxamide19432-60-1C8H9N3O
- 1-(6-Methyl-1H-imidazo[1,2-b]pyrazol-1-yl)ethanone53745-41-8C8H9N3O
- 2-Imino-3-methyl-2,3-dihydrobenzo[d]oxazol-5-amine739324-98-2C8H9N3O
- N-(1-Methyl-1H-benzo[d]imidazol-2-yl)hydroxylamine727381-53-5C8H9N3O
- 4-Hydrazinyl-3-methoxybenzonitrileC8H9N3O
- 3-Cyclopropyl-5-isocyanato-1-methyl-1H-pyrazole785781-38-6C8H9N3O
- 5,6-Dimethylpyrazolo[1,5-a]pyrimidin-2(1H)-one101259-15-8C8H9N3O
- 2-(3-Amino-2-methoxypyridin-4-yl)acetonitrile1352396-62-3C8H9N3O
- 5-Methyl-1,3-benzoxazole-2,6-diamine1820683-80-4C8H9N3O
- 5-Methoxy-1H-indazol-4-amine1352397-32-0C8H9N3O
- 2-Ethyl-1,5-dihydroimidazo[4,5-c]pyridin-4-one158939-10-7C8H9N3O
- 4-(Aminomethyl)-1H-indazol-5-ol1495539-26-8C8H9N3O
- 4-Methyl-1,2-dihydropyrido[2,3-b]pyrazin-3(4H)-one1514581-07-7C8H9N3O
- 7-Methoxy-1H-indazol-5-amine1446505-10-7C8H9N3O
- 3-Methoxy-1H-indazol-7-amine1542691-21-3C8H9N3O
- 5-Methoxyimidazo[1,2-a]pyridin-8-amine1558274-64-8C8H9N3O
- 1-([1,2,3]Triazolo[1,5-a]pyridin-7-yl)ethanol1782508-39-7C8H9N3O
- (2-Methyl-2H-benzo[d][1,2,3]triazol-5-yl)methanol1785120-33-3C8H9N3O
- 2-(6,7-Dihydro-5H-pyrazolo[5,1-b][1,3]oxazin-2-yl)acetonitrile1936404-24-8C8H9N3O
- 7-(Aminomethyl)benzo[d]oxazol-2-amine1620016-35-4C8H9N3O
- 6-(Aminomethyl)benzo[d]oxazol-2-amine1780524-28-8C8H9N3O
- 4-(Aminomethyl)benzo[d]oxazol-2-amine1784320-94-0C8H9N3O
- 6-Methoxyimidazo[1,2-a]pyridin-3-amine1427361-48-5C8H9N3O
- 5-Methoxyimidazo[1,2-a]pyridin-3-amine1427424-40-5C8H9N3O
- 8-Methoxyimidazo[1,2-a]pyridin-3-amine1427439-60-8C8H9N3O
- (2-Methyl-2H-benzo[d][1,2,3]triazol-4-yl)methanol1936320-07-8C8H9N3O
- 1-Methyl-1,2-dihydropyrido[2,3-b]pyrazin-3(4H)-one1443288-26-3C8H9N3O
- 1-(Furan-2-ylmethyl)-1H-pyrazol-3-amine1707400-22-3C8H9N3O
- 2-(1,4,6,7-Tetrahydropyrano[4,3-c]pyrazol-3-yl)acetonitrile1351384-55-8C8H9N3O
- 1-(Pyrazolo[1,5-a]pyrazin-3-yl)ethan-1-ol1694839-16-1C8H9N3O
- 6-(Aminomethyl)-1,2-dihydro-3H-indazol-3-one1782329-78-5C8H9N3O
- 1-(5-Cyano-2-(hydroxymethyl)phenyl)hydrazine1804081-42-2C8H9N3O
- 1-(3-Cyano-4-(hydroxymethyl)phenyl)hydrazine1803716-07-5C8H9N3O
- 1-(2-Cyano-5-(hydroxymethyl)phenyl)hydrazine1805863-55-1C8H9N3O
- 1-(3-Cyano-5-(hydroxymethyl)phenyl)hydrazine1805906-07-3C8H9N3O
- 1-(3-Cyano-2-(hydroxymethyl)phenyl)hydrazine1806530-22-2C8H9N3O
- 1-(4-Cyano-3-(hydroxymethyl)phenyl)hydrazine1803873-02-0C8H9N3O
- 1-(2-Cyano-6-(hydroxymethyl)phenyl)hydrazine1804267-16-0C8H9N3O
- 1-(2-Cyano-3-(hydroxymethyl)phenyl)hydrazine1803888-36-9C8H9N3O
- 1-(2-Cyano-4-(hydroxymethyl)phenyl)hydrazine1804275-81-7C8H9N3O
- 1-Nitroso-2,3-dihydroindol-6-amine1400565-24-3C8H9N3O
- (5-Aminopyrazin-2-yl)-cyclopropylmethanone1425939-58-7C8H9N3O
- 1,3,4,5-Tetrahydropyrido[3,2-e][1,4]diazepin-2-one1629195-07-8C8H9N3O
- (S)-1-(Benzo[C][1,2,5]oxadiazol-5-yl)ethan-1-amine2055849-20-0C8H9N3O
- (R)-1-(Benzo[C][1,2,5]oxadiazol-5-yl)ethan-1-amine2055849-19-7C8H9N3O
- 6-Methoxy-7-methyl-3H-imidazo[4,5-b]pyridine1934434-05-5C8H9N3O
- 5-Ethynyl-N,1-dimethyl-1H-imidazole-2-carboxamide1314640-60-2C8H9N3O
- {6-Methylpyrazolo[1,5-a]pyrimidin-3-yl}methanol1263060-56-5C8H9N3O
- 6-Amino-7-Methoxy-1H-benzimidazol1360962-27-1C8H9N3O
- 5,6-Dimethyl-1,3-dihydroimidazo[4,5-b]pyridin-2-one116599-54-3C8H9N3O
- (3-Methyl-[1,2,4]triazolo[4,3-A]pyridin-8-yl)methanol2102411-85-6C8H9N3O
- 5-(Pyrimidin-2-yl)pyrrolidin-2-one2355339-02-3C8H9N3O
- 5-(Pyrimidin-4-yl)pyrrolidin-2-one2359527-17-4C8H9N3O
- 5-(Pyrimidin-5-yl)pyrrolidin-2-one2359884-08-3C8H9N3O
Frequently asked questions
What is the molar mass of C8H9N3O?
The molar mass of C8H9N3O is 163.18 g/mol, calculated from standard atomic weights for 8 carbon atoms, 9 hydrogen atoms, 3 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 171.1248 Da.
How many compounds have the formula C8H9N3O?
CompoundList lists 678 compounds with the molecular formula C8H9N3O, including 6',7'-Dihydrospiro[azetidine-3,5'-pyrrolo[1,2-a]imidazol]-7'-one, 5-(2-Methylfuran-3-yl)-1H-imidazol-2-amine, 3-Ethynyl-5H,6H,7H,9H-[1,2,4]triazolo[3,4-c][1,4]oxazepine. 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 C8H9N3O?
C8H9N3O has a degree of unsaturation of 6. 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.