Molecular formula
C11H9N3O
313 compounds have this formula on CompoundList.
- Molar mass
- 199.21g/mol
- Monoisotopic mass
- 199.0746Da
- Atoms
- 24
- Elements
- 4
- Rings plus double bonds
- 9
The formula C11H9N3O describes a molecule made of 11 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 × 1166.32%12.011 × 11 = 132.121 g/mol
- H Hydrogen × 94.55%1.008 × 9 = 9.072 g/mol
- N Nitrogen × 321.09%14.007 × 3 = 42.021 g/mol
- O Oxygen × 18.03%15.999 × 1 = 15.999 g/mol
Look up another formula
Compounds with the formula C11H9N3O
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 101 to 200 of 313 compounds
![5-Amino-1H-naphtho[1,2-d]imidazol-2(3H)-one chemical structure, C11H9N3O, CAS 75370-64-8](/s/KLWKPJUICJBPNJ-UHFFFAOYSA-N.svg)
5-Amino-1H-naphtho[1,2-d]imidazol-2(3H)-one
CAS 75370-64-8C11H9N3O
1-(Pyridin-2-yl)-2-(pyrimidin-2-yl)ethanone
CAS 73569-08-1C11H9N3O
4-(Pyrimidin-2-yl)benzamide
CAS 1314928-05-6C11H9N3O
![[3,3'-Bipyridine]-5-carboxamide chemical structure, C11H9N3O, CAS 1346686-54-1](/s/WBJJQJFDMUQYEU-UHFFFAOYSA-N.svg)
[3,3'-Bipyridine]-5-carboxamide
CAS 1346686-54-1C11H9N3O
![[2,3'-Bipyridine]-4-carboxamide chemical structure, C11H9N3O, CAS 2089319-07-1](/s/YSUBJTMXFFEPOB-UHFFFAOYSA-N.svg)
[2,3'-Bipyridine]-4-carboxamide
CAS 2089319-07-1C11H9N3O
5-(1-Benzofuran-5-yl)-1H-pyrazol-3-amine
CAS 2850376-37-1C11H9N3O
![2-(Aminomethyl)oxazolo[4,5-c]quinoline chemical structure, C11H9N3O, CAS 2155874-79-4](/s/HVWPXGBGWAHIPE-UHFFFAOYSA-N.svg)
2-(Aminomethyl)oxazolo[4,5-c]quinoline
CAS 2155874-79-4C11H9N3O
Dipyrido(1,2-a:3',2'-d)imidazol-4-ol, 6-methyl-
CAS 81810-03-9C11H9N3O
Dipyrido(1,2-a:3',2'-d)imidazol-4-ol, 2-methyl-
CAS 81810-05-1C11H9N3O
Dipyrido(1,2-a:3',2'-d)imidazol-4-ol, 7-methyl-
CAS 81810-04-0C11H9N3O
![[2,2'-Bipyridine]-5-carboxamide chemical structure, C11H9N3O, CAS 294648-47-8](/s/IJZLDWAQCDOZMH-UHFFFAOYSA-N.svg)
[2,2'-Bipyridine]-5-carboxamide
CAS 294648-47-8C11H9N3O
![[2,2'-Bipyridine]-6-carboxamide chemical structure, C11H9N3O, CAS 207610-55-7](/s/MNTJSTUNNZRJHD-UHFFFAOYSA-N.svg)
[2,2'-Bipyridine]-6-carboxamide
CAS 207610-55-7C11H9N3O
5-Hydroxy-1-methyl-3-phenyl-1H-pyrazole-4-carbonitrile
CAS 139347-62-9C11H9N3O
![10-Methyl-1,3,9-triazatricyclo[6.4.1.04,13]trideca-2,4(13),5,7,10-pentaen-12-one chemical structure, C11H9N3O, CAS 137654-51-4](/s/XUOSCTGYNGYGFA-UHFFFAOYSA-N.svg)
10-Methyl-1,3,9-triazatricyclo[6.4.1.04,13]trideca-2,4(13),5,7,10-pentaen-12-one
CAS 137654-51-4C11H9N3O
2-(3-(m-Tolyl)-1,2,4-oxadiazol-5-yl)acetonitrile
CAS 937632-64-9C11H9N3O
3-(Pyrimidin-5-yl)benzamide
CAS 1965310-12-6C11H9N3O
![7-Methoxy-[1,2,4]triazolo[4,3-a]quinoline chemical structure, C11H9N3O, CAS 41493-63-4](/s/YPWVAGZCIUPOBD-UHFFFAOYSA-N.svg)
7-Methoxy-[1,2,4]triazolo[4,3-a]quinoline
CAS 41493-63-4C11H9N3O
1,3-Dihydro-5-(1H-pyrrol-1-yl)-2H-benzimidazol-2-one
CAS 1018229-53-2C11H9N3O
5-(2-Benzofuranyl)-3-methyl-1H-1,2,4-triazole
CAS 1094483-76-7C11H9N3O
![N-(3-Ethynylimidazo[1,2-a]pyridin-8-yl)acetamide chemical structure, C11H9N3O, CAS 943320-54-5](/s/ZDIQPUMXPNYQMO-UHFFFAOYSA-N.svg)
N-(3-Ethynylimidazo[1,2-a]pyridin-8-yl)acetamide
CAS 943320-54-5C11H9N3O
3-Methyl-5-(oxazol-5-yl)-1H-indazole
CAS 1105712-05-7C11H9N3O
![[2,3'-Bipyridine]-5'-carboxamide chemical structure, C11H9N3O, CAS 1346686-51-8](/s/AACJFDRRQVKDAC-UHFFFAOYSA-N.svg)
[2,3'-Bipyridine]-5'-carboxamide
CAS 1346686-51-8C11H9N3O
1-(Prop-2-yn-1-yl)-3-(pyridin-2-yl)-1H-pyrazol-5-ol
CAS 2092034-10-9C11H9N3O
1-(Prop-2-yn-1-yl)-3-(pyridin-3-yl)-1H-pyrazol-5-ol
CAS 2090878-97-8C11H9N3O
- 8-Methyl-1H,4H,5H-pyrazolo[4,3-c]quinolin-4-one156992-53-9C11H9N3O
- 2-Amino-4-oxo-5-phenyl-4,5-dihydro-1H-pyrrole-3-carbonitrile929974-42-5C11H9N3O
- 4-[2-(Pyridin-3-yl)hydrazinylidene]cyclohexa-2,5-dien-1-one6759-49-5C11H9N3O
- 1-Methyl-2,5-dihydropyrazolo[3,4-c]quinolin-4-one56908-72-6C11H9N3O
- N-(2,4-Dicyano-6-methylphenyl)acetamide342044-32-0C11H9N3O
- 7-Methoxy-1H-pyrazolo[3,4-b]quinoline156461-95-9C11H9N3O
- [(2-Methoxyanilino)methylene]malononitrile24115-30-8C11H9N3O
- 2-(1H-Benzo[d]imidazol-2-yl)-3-oxobutanenitrile62591-04-2C11H9N3O
- (2Z)-2-(3-Oxo-1,4-dihydroquinoxalin-2-ylidene)propanenitrile67557-68-0C11H9N3O
- 3-Methyl-3,5-dihydro-4H-pyrrolo[2,3-c][1,8]naphthyridin-4-one62289-92-3C11H9N3O
- 1-(Pyrazin-2-yl)-2-(pyridin-2-yl)ethanone62846-58-6C11H9N3O
- 2-(Pyridin-2-yl)-1-(pyrimidin-4-yl)ethan-1-one62846-59-7C11H9N3O
- 2,8-Dimethyl-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carbonitrile64500-91-0C11H9N3O
- 2-Methylpyrazolo[1,5-a]quinoxalin-4(5H)-one88609-17-0C11H9N3O
- 4-(6-Oxo-1,4,5,6-tetrahydropyridazin-3-yl)benzonitrile36725-21-0C11H9N3O
- 4-Cyano-2-(p-methoxyphenyl)imidazole102151-72-4C11H9N3O
- N-(Pyridazin-4-yl)benzamide921759-07-1C11H9N3O
- N-Phenyl-2-pyrimidinecarboxamide1499572-61-0C11H9N3O
- 2-(Furan-3-yl)-1H-benzo[d]imidazol-5-amine263022-86-2C11H9N3O
- N-(Prop-2-YN-1-yl)-1H-indazole-3-carboxamide1090814-96-2C11H9N3O
- N-(Quinoxalin-6-yl)acrylamide1183129-19-2C11H9N3O
- 4-(3-Ethyl-1,2,4-oxadiazol-5-yl)benzonitrile1421262-65-8C11H9N3O
- 3-(3-Ethyl-1,2,4-oxadiazol-5-yl)benzonitrile1421261-77-9C11H9N3O
- 3-(3-Furanyl)-1H-indazol-5-amine1356088-78-2C11H9N3O
- 6-Methoxy-4-methyl-1,5-naphthyridine-3-carbonitrile1417554-60-9C11H9N3O
- 1-(Prop-2-yn-1-yl)-3-(pyridin-4-yl)-1H-pyrazol-5-ol2090593-36-3C11H9N3O
- 4-(But-2-yn-1-yloxy)pyrido[2,3-d]pyrimidine2201255-94-7C11H9N3O
- 4-(But-2-yn-1-yloxy)pyrido[3,4-d]pyrimidine2199104-69-1C11H9N3O
- 3,5-Dihydro-7-methyl-4H-pyrimido[5,4-b]indol-4-one371930-96-0C11H9N3O
- 3-Methyl-3H-pyridazino[4,5-b]indol-4(5H)-one5777-93-5C11H9N3O
- 3-(1-Methyl-5-indazolyl)-3-oxopropanenitrile2216747-88-3C11H9N3O
- 1-Prop-2-ynylindazole-5-carboxamide2735014-57-8C11H9N3O
- Imidazo[1,2-c]quinazolin-2(3H)-one, 3-methyl-61381-31-5C11H9N3O
- 7-Methyl-5,7-dihydro-6H-pyrrolo[2,3-c][1,6]naphthyridin-6-one62289-95-6C11H9N3O
- 1-(Pyridin-2-yl)-2-(pyrimidin-4-yl)ethanone62846-55-3C11H9N3O
- 3-Methyl-1H-imidazo[4,5-h]quinolin-2(3H)-one132476-13-2C11H9N3O
- 3(2H)-Pyridazinone, 6-[2-(4-pyridinyl)ethenyl]-, (E)-87164-92-9C11H9N3O
- 1-Acetyl-1H-pyrrolo[2,3-b]pyridine-3-acetonitrile338731-10-5C11H9N3O
- 2-Methyl-1H-imidazo[4,5-f]quinolin-9(6H)-one82723-48-6C11H9N3O
- 4-((1H-Benzo[d]imidazol-2-yl)methyl)isoxazole40609-30-1C11H9N3O
- 2-Amino-4-(3-hydroxyphenyl)-1H-pyrrole-3-carbonitrile344359-56-4C11H9N3O
- [2-(1-Methoxypyridin-2(1H)-ylidene)ethylidene]propanedinitrile27352-34-7C11H9N3O
- 3,6-Dihydro[1,4]diazepino[6,5-b]indol-5(4H)-one651043-33-3C11H9N3O
- 3,8-Dihydro[1,4]diazepino[6,5-e]indol-1(2H)-one651043-35-5C11H9N3O
- 3,10-Dihydro[1,4]diazepino[5,6-b]indol-5(4H)-one651043-32-2C11H9N3O
- [2,4'-Bipyridine]-5-carboxamide834881-88-8C11H9N3O
- N-(Cyanomethyl)-1H-indole-6-carboxamide1342115-67-6C11H9N3O
- 3-(1-Benzofuran-3-yl)-1H-pyrazol-5-amine1346830-17-8C11H9N3O
- (3-Methoxy-quinoxalin-5-yl)-acetonitrile1072793-00-0C11H9N3O
- 4-(4-(Hydroxymethyl)-1H-pyrazol-1-yl)benzonitrile1208000-24-1C11H9N3O
- 1-Benzyl-5-hydroxy-1H-pyrazole-4-carbonitrile2090251-84-4C11H9N3O
- 4-(Pyrimidin-5-yl)benzamide467253-97-0C11H9N3O
- 1-(1-Phenyl-1H-1,2,3-triazol-4-yl)prop-2-en-1-one2229580-85-0C11H9N3O
- [3,4'-Bipyridine]-5-carboxamide1346686-56-3C11H9N3O
- 3-Methyl-3H-pyrrolo[2,3-c][1,7]naphthyridin-4(5H)-one62289-94-5C11H9N3O
- 5-{[(Furan-2-yl)methyl]amino}pyridine-2-carbonitrile1545217-61-5C11H9N3O
- 5-(1H-Indol-3-yl)-1,3-oxazol-2-amine1368657-61-7C11H9N3O
- 2-(1-Methylpyrazol-4-yl)oxybenzonitrile1712834-10-0C11H9N3O
- 1-Methylpyrido[2,3-e]pyrrolo[1,2-a]pyrazin-6(5H)-one1355244-58-4C11H9N3O
- 4-(3-Methyl-[1,2,4]oxadiazol-5-yl)-1H-indole1239847-32-5C11H9N3O
- (5-Amino-4-pyrimidinyl)phenylmethanone225794-33-2C11H9N3O
- 1-Methyl-imidazo[1,5-a]quinazolin-5(4H)-one1206450-69-2C11H9N3O
- 3-Methyl-imidazo[1,5-a]quinazolin-5(4H)-one1206450-72-7C11H9N3O
- 4-Amino-2-phenylpyrimidine-5-carbaldehyde19674-66-9C11H9N3O
- 6-(Furan-2-yl)-N-(prop-2-yn-1-yl)pyrimidin-4-amine2098134-76-8C11H9N3O
- 6-(Furan-3-yl)-N-(prop-2-yn-1-yl)pyrimidin-4-amine2097984-57-9C11H9N3O
- 4-(3-Methoxy-1H-pyrazol-1-yl)benzonitrile2098216-05-6C11H9N3O
- 2-Methoxy-7-methyl-5-quinoxalinecarbonitrile2172977-44-3C11H9N3O
- 2-(1,2-Dihydro-3H-pyrazol-3-ylidene)-1,2-dihydro-6H-indol-6-one827317-48-6C11H9N3O
- 2-(1,2-Dihydro-3H-pyrazol-3-ylidene)-1,2-dihydro-4H-indol-4-one827317-46-4C11H9N3O
- Phenol, 2-[(2-pyrimidinylimino)methyl]-95640-83-8C11H9N3O
- 1,5-Dihydro-6H-pyrimido[1,2-a]quinazolin-6-one651043-42-4C11H9N3O
- 3-Methyl-1H-pyrazolo[3,4-b]quinolin-4(9H)-one100548-59-2C11H9N3O
- 2-(1,2-Dihydro-3H-pyrazol-3-ylidene)-2H-indol-5-ol827317-47-5C11H9N3O
- 6-(2-Phenylhydrazinylidene)pyridin-3(6H)-one35771-40-5C11H9N3O
- 3,4-Dihydro-7-methyl-4-oxo-2-quinazolineacetonitrile1378800-33-9C11H9N3O
Frequently asked questions
What is the molar mass of C11H9N3O?
The molar mass of C11H9N3O is 199.21 g/mol, calculated from standard atomic weights for 11 carbon atoms, 9 hydrogen atoms, 3 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 199.0746 Da.
How many compounds have the formula C11H9N3O?
CompoundList lists 313 compounds with the molecular formula C11H9N3O, including 5-Amino-1H-naphtho[1,2-d]imidazol-2(3H)-one, 1-(Pyridin-2-yl)-2-(pyrimidin-2-yl)ethanone, 4-(Pyrimidin-2-yl)benzamide. 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 C11H9N3O?
C11H9N3O has a degree of unsaturation of 9. 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.