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 101 to 200 of 678 compounds
3-Amino-3,4-dihydro-1,5-naphthyridin-2(1H)-one
CAS 600157-67-3C8H9N3O
![6-Methoxy-3-methyl-3H-imidazo[4,5-b]pyridine chemical structure, C8H9N3O, CAS 1186311-16-9](/s/ORZZNLBBYXYCMH-UHFFFAOYSA-N.svg)
6-Methoxy-3-methyl-3H-imidazo[4,5-b]pyridine
CAS 1186311-16-9C8H9N3O
![4,5-Dihydro-1H-pyrido[3,4-B][1,4]diazepin-2(3H)-one chemical structure, C8H9N3O, CAS 710349-41-0](/s/UYIOCMHUUSPSCO-UHFFFAOYSA-N.svg)
4,5-Dihydro-1H-pyrido[3,4-B][1,4]diazepin-2(3H)-one
CAS 710349-41-0C8H9N3O
![4-Methyl-1H,2H,3H,4H-pyrido[2,3-b]pyrazin-2-one chemical structure, C8H9N3O, CAS 1314974-86-1](/s/YTUGQJYIJAAQMR-UHFFFAOYSA-N.svg)
4-Methyl-1H,2H,3H,4H-pyrido[2,3-b]pyrazin-2-one
CAS 1314974-86-1C8H9N3O
![6-Methyl-1H,2H,3H,4H-pyrido[2,3-b]pyrazin-2-one chemical structure, C8H9N3O, CAS 1314976-52-7](/s/UKTYMXRERGTZAV-UHFFFAOYSA-N.svg)
6-Methyl-1H,2H,3H,4H-pyrido[2,3-b]pyrazin-2-one
CAS 1314976-52-7C8H9N3O
![7-Amino-1-methyl-1,3-dihydro-2H-benzo[d]imidazol-2-one chemical structure, C8H9N3O, CAS 851886-92-5](/s/HURLDMSOLJJDGK-UHFFFAOYSA-N.svg)
7-Amino-1-methyl-1,3-dihydro-2H-benzo[d]imidazol-2-one
CAS 851886-92-5C8H9N3O
![(7-Methyl-7H-pyrrolo[2,3-d]pyrimidin-5-yl)methanol chemical structure, C8H9N3O, CAS 1638771-55-7](/s/HYFDKTDEIDBTOR-UHFFFAOYSA-N.svg)
(7-Methyl-7H-pyrrolo[2,3-d]pyrimidin-5-yl)methanol
CAS 1638771-55-7C8H9N3O
![2,6-Dimethyl-1H-pyrrolo[3,2-d]pyrimidin-4(5H)-one chemical structure, C8H9N3O, CAS 82722-95-0](/s/COYBPCUIEZYZBA-UHFFFAOYSA-N.svg)
2,6-Dimethyl-1H-pyrrolo[3,2-d]pyrimidin-4(5H)-one
CAS 82722-95-0C8H9N3O
![2H-Imidazo[4,5-b]pyridin-2-one, 1,3-dihydro-1,3-dimethyl- chemical structure, C8H9N3O, CAS 21991-37-7](/s/PRTMVBNVWJXLBN-UHFFFAOYSA-N.svg)
2H-Imidazo[4,5-b]pyridin-2-one, 1,3-dihydro-1,3-dimethyl-
CAS 21991-37-7C8H9N3O
N-(Pyrazin-2-yl)cyclopropanecarboxamide
CAS 681250-02-2C8H9N3O
Benzene, (2-azidoethoxy)-
CAS 70659-90-4C8H9N3O
5-(1,3-Dimethyl-1H-pyrazol-4-yl)isoxazole
CAS 1005553-66-1C8H9N3O
![2-Methyl-1H,2H,3H,4H-pyrido[3,4-b]pyrazin-3-one chemical structure, C8H9N3O, CAS 159104-73-1](/s/QMYSSJDBKNGLKT-UHFFFAOYSA-N.svg)
2-Methyl-1H,2H,3H,4H-pyrido[3,4-b]pyrazin-3-one
CAS 159104-73-1C8H9N3O
(6-Amino-1H-indazol-3-yl)methanol
CAS 908247-68-7C8H9N3O
![7-Methyl-1H,2H,3H,4H-pyrido[2,3-b]pyrazin-2-one chemical structure, C8H9N3O, CAS 1314968-98-3](/s/CHTPIYCJJPAFFV-UHFFFAOYSA-N.svg)
7-Methyl-1H,2H,3H,4H-pyrido[2,3-b]pyrazin-2-one
CAS 1314968-98-3C8H9N3O
![1H,2H,3H,4H,5H-Pyrido[2,3-e][1,4]diazepin-3-one chemical structure, C8H9N3O, CAS 894852-27-8](/s/UEWFRJPQCMSYDP-UHFFFAOYSA-N.svg)
1H,2H,3H,4H,5H-Pyrido[2,3-e][1,4]diazepin-3-one
CAS 894852-27-8C8H9N3O
![(6-Amino-1H-benzo[d]imidazol-4-yl)methanol chemical structure, C8H9N3O, CAS 1169789-16-5](/s/HYEOFXVTIGYOFZ-UHFFFAOYSA-N.svg)
(6-Amino-1H-benzo[d]imidazol-4-yl)methanol
CAS 1169789-16-5C8H9N3O
3-Methoxy-1H-indazol-6-amine
CAS 1056619-82-9C8H9N3O
4-Methyl-6-hydroxy-5-(2-propynyl)-2-pyrimidinamine
CAS 81887-01-6C8H9N3O
5-Hydroxy-1-methyl-2-aminobenzimidazole
CAS 90223-04-4C8H9N3O
![1-(5,7-Dihydro-6H-pyrrolo[3,4-d]pyrimidin-6-yl)ethan-1-one chemical structure, C8H9N3O, CAS 13925-33-2](/s/UCDDWBVLTFCBJN-UHFFFAOYSA-N.svg)
1-(5,7-Dihydro-6H-pyrrolo[3,4-d]pyrimidin-6-yl)ethan-1-one
CAS 13925-33-2C8H9N3O
Tadalafil impurity 205
CAS 57223-16-2C8H9N3O
3-Pyridinecarboxylic acid ethylidenehydrazide
CAS 59287-54-6C8H9N3O
![(1-Methyl-1H-imidazo[4,5-b]pyridin-2-yl)methanol chemical structure, C8H9N3O, CAS 172648-00-9](/s/YEDUHNTUAOOSHK-UHFFFAOYSA-N.svg)
(1-Methyl-1H-imidazo[4,5-b]pyridin-2-yl)methanol
CAS 172648-00-9C8H9N3O
- 4-(2-Azidoethyl)phenol74447-34-0C8H9N3O
- 5-(1-Ethyl-1H-pyrazol-4-yl)isoxazole1174879-25-4C8H9N3O
- (3-Methyl-3H-imidazo[4,5-b]pyridin-6-yl)methanol1186310-79-1C8H9N3O
- (5-Amino-1H-indazol-3-yl)methanol908247-75-6C8H9N3O
- 4-(Aminomethyl)-1,3-dihydro-2H-pyrrolo[2,3-B]pyridin-2-one935466-94-7C8H9N3O
- (R)-2-Azido-1-phenylethanol134625-72-2C8H9N3O
- 5-Amino-2-cyclobutyloxazole-4-carbonitrile909077-19-6C8H9N3O
- N-(3-Cyano-4-methyl-1H-pyrrol-2-yl)acetamide88366-10-3C8H9N3O
- Benzene, (azidomethoxymethyl)-127700-29-2C8H9N3O
- Benzene, 1-(azidomethyl)-2-methoxy-300823-47-6C8H9N3O
- 3-Amino-3,4-dihydro-1,8-naphthyridin-2(1H)-one847684-77-9C8H9N3O
- 3-Amino-5-(3-methyl-2-furyl)pyrazole1028843-01-7C8H9N3O
- 1-[5-(2-Furyl)-1H-pyrazol-3-yl]methanamine dihydrochloride1107465-51-9C8H9N3O
- 2,7-Dimethyl-[1,2,4]triazolo[1,5-a]pyridin-5(1H)-one1092290-02-2C8H9N3O
- 2-(2-Methoxyethyl)pyrimidine-5-carbonitrile1123169-32-3C8H9N3O
- 8-Amino-3,4-dihydroquinazolin-2(1H)-one1253225-78-3C8H9N3O
- 2-(Methoxymethyl)-3H-imidazo[4,5-b]pyridine158525-79-2C8H9N3O
- 4-(Pyridin-2-yl)imidazolidin-2-one1503758-50-6C8H9N3O
- 5-Amino-3,4-dihydroquinazolin-2(1H)-one1042973-64-7C8H9N3O
- 5-Methoxy-1H-indazol-6-amine1892854-32-8C8H9N3O
- 1-(Pyrimidin-2-yl)pyrrolidin-3-one956723-06-1C8H9N3O
- 3-Methyl-3,4-dihydro-1,2,3-benzotriazin-4-ol85010-39-5C8H9N3O
- 3-(3-Pyridinyl)acrylohydrazide173679-09-9C8H9N3O
- 3-(4-Formyl-3-methyl-1H-pyrazol-1-yl)propanenitrile372190-37-9C8H9N3O
- (5-Methyl-1H-1,2,3-benzotriazol-1-yl)methanol36757-21-8C8H9N3O
- 2-Propenamide, N-(6-amino-2-pyridinyl)-795289-84-8C8H9N3O
- 5-Ethylpyrazolo[1,5-a]pyrimidin-7(4H)-one167371-38-2C8H9N3O
- 3,5-Dimethylpyrazolo[1,5-a]pyrimidin-7(4H)-one2090978-79-1C8H9N3O
- (2-Amino-1H-benzo[D]imidazol-5-yl)methanol58842-66-3C8H9N3O
- 3-(Furan-3-yl)-1-methyl-1H-pyrazol-5-amine92406-51-4C8H9N3O
- 2-Amino-5,6,7,8-tetrahydroquinazolin-6-one944895-82-3C8H9N3O
- 3H-Imidazo[4,5-b]pyridine-3-ethanol237405-39-9C8H9N3O
- 1 suppliers2-Cyclopropylamino-pyrimidine-4-carbaldehyde948549-74-4C8H9N3O
- 3-Amino-6-ethoxypicolinonitrile625822-19-7C8H9N3O
- 5-Methoxy-1H-pyrrolo[3,2-b]pyridin-3-amine1190311-26-2C8H9N3O
- 4,5-Diamino-2-methoxybenzonitrile1196074-44-8C8H9N3O
- 1-Methyl-1H,2H,3H,4H-pyrido[3,4-b]pyrazin-3-one1384429-39-3C8H9N3O
- 3-(1,3-Dimethyl-1H-pyrazol-4-yl)-3-oxopropanenitrile158386-99-3C8H9N3O
- 5-Aminobenzoxazole-2-methanamine1780283-55-7C8H9N3O
- 6-Aminobenzoxazole-2-methanamine1524800-87-0C8H9N3O
- 4-Aminobenzoxazole-2-methanamine1551033-41-0C8H9N3O
- (2-Methylimidazo[1,2-a]pyrazin-3-yl)methanol1780537-10-1C8H9N3O
- 1-Azido-2-ethoxybenzene1092774-34-9C8H9N3O
- {7-Methyl-7H-pyrrolo[2,3-d]pyrimidin-2-yl}methanol1638767-77-7C8H9N3O
- 6-Amino-7-methyl-4-aza-2-oxindole1190309-78-4C8H9N3O
- 3-Amino-1-oxo-5,6,7,7a-tetrahydro-1H-pyrrolizine-2-carbonitrile929974-22-1C8H9N3O
- 5-Amino-3-oxo-1-prop-2-enyl-2H-pyrrole-4-carbonitrile134518-34-6C8H9N3O
- 2-Azido-1-phenylethanol18756-01-9C8H9N3O
- 3-Ethyl-1H-imidazo[4,5-b]pyridin-2-one32282-16-9C8H9N3O
- N-[(E)-Pyridin-3-ylmethylideneamino]acetamide126937-14-2C8H9N3O
- 1-Ethyl-1H-imidazo[4,5-c]pyridin-2(3H)-one460739-65-5C8H9N3O
- 2-Azido-1-methoxy-4-methylbenzene77721-47-2C8H9N3O
- 6-Methoxy-2-methylimidazo(1,2-b)pyridazine17240-34-5C8H9N3O
- 3-Cyano-4-methoxyphenylhydrazine206885-28-1C8H9N3O
- 6-Ethoxy-1H-benzo[d][1,2,3]triazole62600-03-7C8H9N3O
- 2,3-Dimethylpyrazolo[1,5-A]pyrimidin-7-ol5148-32-3C8H9N3O
- 6-Ethoxyimidazo[1,2-b]pyridazine57470-53-8C8H9N3O
- [4-(Azidomethyl)phenyl]methanol439691-96-0C8H9N3O
- 3-(Furan-2-yl)-4-methyl-1H-pyrazol-5-amine1187766-98-8C8H9N3O
- 2-(Imidazo[1,2-a]pyrazin-3-yl)ethanol453548-55-5C8H9N3O
- 4-Methoxy-1H-pyrrolo[2,3-b]pyridin-6-amine1190311-52-4C8H9N3O
- 5-(2-Isocyanatopropan-2-yl)pyrimidine1229833-53-7C8H9N3O
- 4-Amino-1-methyl-1,2-dihydro-indazol-3-one878156-07-1C8H9N3O
- (2-Methyl-[1,2,4]triazolo[1,5-a]pyridin-5-yl)methanol1079993-44-4C8H9N3O
- 1-Methyl-N-(prop-2-yn-1-yl)-1H-pyrazole-5-carboxamide1248172-02-2C8H9N3O
- 5-Ethoxy-1H-pyrazolo[4,3-b]pyridine1226903-85-0C8H9N3O
- 7-Methoxy-1H-indazol-3-amine1279834-03-5C8H9N3O
- 4-Methoxy-7-methyl-7H-pyrrolo[2,3-d]pyrimidine1644602-67-4C8H9N3O
- (5-Methyl-7H-pyrrolo[2,3-d]pyrimidin-2-yl)methanol1638760-51-6C8H9N3O
- 1-(2,3-Dihydroimidazo[1,2-b]pyrazol-1-yl)prop-2-en-1-one2189893-18-1C8H9N3O
- 4H-Pyrrolo[2,3-d]pyrimidin-4-one, 1,7-dihydro-2,5-dimethyl-95927-51-8C8H9N3O
- N-(Phenylhydrazinylidene)acetamide5661-51-8C8H9N3O
- 5,7-Dimethylpyrrolo[2,1-f][1,2,4]triazin-4(1H)-one310430-97-8C8H9N3O
- 3-Amino-3,4-dihydroquinoxalin-2(1H)-one500563-87-1C8H9N3O
- 3-(4-Pyridinyl)-2-propenoic acid hydrazide98488-11-0C8H9N3O
- N,N-Dimethyl-2,1,3-benzoxadiazol-5-amine6124-22-7C8H9N3O
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 3-Amino-3,4-dihydro-1,5-naphthyridin-2(1H)-one, 6-Methoxy-3-methyl-3H-imidazo[4,5-b]pyridine, 4,5-Dihydro-1H-pyrido[3,4-B][1,4]diazepin-2(3H)-one. 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.