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 201 to 300 of 313 compounds
N-(6-Methyl-1H-indazol-5-yl)prop-2-ynamide
CAS 2305408-85-7C11H9N3O
![1-{Furo[3,2-c]pyridin-4-yl}-2-methyl-1H-imidazole chemical structure, C11H9N3O, CAS 2320465-24-3](/s/OCAFCGDGUHLHGD-UHFFFAOYSA-N.svg)
1-{Furo[3,2-c]pyridin-4-yl}-2-methyl-1H-imidazole
CAS 2320465-24-3C11H9N3O
2-(4-Methyl-1H-pyrazol-1-yl)-1,3-benzoxazole
CAS 2320209-52-5C11H9N3O
![1-{Furo[3,2-c]pyridin-4-yl}-4-methyl-1H-pyrazole chemical structure, C11H9N3O, CAS 2320886-34-6](/s/WPLFCHMBGYHZHU-UHFFFAOYSA-N.svg)
1-{Furo[3,2-c]pyridin-4-yl}-4-methyl-1H-pyrazole
CAS 2320886-34-6C11H9N3O
N-(Cyanomethyl)-2-(4-cyanophenyl)acetamide
CAS 2160313-74-4C11H9N3O
N-(1,5-Naphthyridin-4-yl)prop-2-enamide
CAS 2189893-84-1C11H9N3O
1H-Indole-3-acetamide, 6-cyano-
CAS 1378818-56-4C11H9N3O
![N-[Cyano(pyridin-3-yl)methyl]but-2-ynamide chemical structure, C11H9N3O, CAS 2411307-13-4](/s/NRJKWLOJIIXFQG-UHFFFAOYSA-N.svg)
N-[Cyano(pyridin-3-yl)methyl]but-2-ynamide
CAS 2411307-13-4C11H9N3O
4-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzonitrile
CAS 60798-08-5C11H9N3O
![7-Aminopyrrolo[1,2-a]quinoxalin-4(5H)-one chemical structure, C11H9N3O, CAS 600179-65-5](/s/YXTRBRGHQOWBDA-UHFFFAOYSA-N.svg)
7-Aminopyrrolo[1,2-a]quinoxalin-4(5H)-one
CAS 600179-65-5C11H9N3O
![Indeno[1,2-c]pyrazol-4(2H)-one, 8-amino-3-methyl- chemical structure, C11H9N3O, CAS 479251-60-0](/s/BYMIDSIOSVVDEC-UHFFFAOYSA-N.svg)
Indeno[1,2-c]pyrazol-4(2H)-one, 8-amino-3-methyl-
CAS 479251-60-0C11H9N3O
![[1-(2-Oxopropyl)pyridin-2(1H)-ylidene]propanedinitrile chemical structure, C11H9N3O, CAS 63014-71-1](/s/OXPSUVJSNAJINX-UHFFFAOYSA-N.svg)
[1-(2-Oxopropyl)pyridin-2(1H)-ylidene]propanedinitrile
CAS 63014-71-1C11H9N3O
3-(1-Phenyl-1H-1,2,3-triazol-4-yl)prop-2-enal
CAS 59067-30-0C11H9N3O
![1-Oxo-3-[(E)-phenyldiazenyl]-1lambda~5~-pyridine chemical structure, C11H9N3O, CAS 2569-65-5](/s/SBFANEIFFIEOMV-UHFFFAOYSA-N.svg)
1-Oxo-3-[(E)-phenyldiazenyl]-1lambda~5~-pyridine
CAS 2569-65-5C11H9N3O
1-Azido-2-methoxynaphthalene
CAS 111180-79-1C11H9N3O
![[2,3'-Bipyridine]-2'-carboxamide chemical structure, C11H9N3O, CAS 1379361-24-6](/s/YAEDKRAOANQAGX-UHFFFAOYSA-N.svg)
[2,3'-Bipyridine]-2'-carboxamide
CAS 1379361-24-6C11H9N3O
5-Pyrimidinecarboxamide,n-phenyl-
CAS 118648-61-6C11H9N3O
2-(1-Methyl-1H-indol-3-yl)-1,3,4-oxadiazole
CAS 2683361-09-1C11H9N3O
![5-(1H-Benzo[d]imidazol-2-yl)furan-2-amine chemical structure, C11H9N3O, CAS 311764-80-4](/s/XFJXRGIQOTYVHN-UHFFFAOYSA-N.svg)
5-(1H-Benzo[d]imidazol-2-yl)furan-2-amine
CAS 311764-80-4C11H9N3O
![6-Amino-1H-naphtho[1,2-d]imidazol-2(3H)-one chemical structure, C11H9N3O, CAS 155137-75-0](/s/SSPYYOFYWBCORO-UHFFFAOYSA-N.svg)
6-Amino-1H-naphtho[1,2-d]imidazol-2(3H)-one
CAS 155137-75-0C11H9N3O
2,3-Dimethyl-4-oxoquinazoline-8-carbonitrile
CAS 1263413-82-6C11H9N3O
2,3-Dimethyl-4-oxoquinazoline-7-carbonitrile
CAS 1263413-84-8C11H9N3O
4-Phenylpyrimidine-2-carboxamide
CAS 1491142-16-5C11H9N3O
![3-Propionylpyrazolo[1,5-a]pyridine-5-carbonitrile chemical structure, C11H9N3O, CAS 1233326-34-5](/s/ISSDBQURNRSCKL-UHFFFAOYSA-N.svg)
3-Propionylpyrazolo[1,5-a]pyridine-5-carbonitrile
CAS 1233326-34-5C11H9N3O
- 6-Butanoylpyridine-2,4-dicarbonitrile143427-72-9C11H9N3O
- 1H-Pyrazolo[4,3-c]quinoline,1-methoxy-351058-44-1C11H9N3O
- 1H-Pyrrolo[3,4-b]quinolin-1-one,9-amino-2,3-dihydro-1040375-81-2C11H9N3O
- 3-(2-Furanyl)-1H-indazol-5-amine1356088-76-0C11H9N3O
- 1-(5-(Pyrimidin-5-yl)pyridin-3-yl)ethanone1526686-74-7C11H9N3O
- 1-Benzyl-4-isocyanato-1H-pyrazole1534597-63-1C11H9N3O
- 4,5-Dihydroimidazo[1,5-a][1,5]naphthyridine-3-carbaldehyde1224848-66-1C11H9N3O
- 4,5-Dihydroimidazo[1,5-a][1,7]naphthyridine-3-carbaldehyde1224847-87-3C11H9N3O
- 1-Methyl-4H-pyrimido[1,6-a]benzimidazol-3-one160745-79-9C11H9N3O
- 1-Methyl-2-(2-oxazolyl)-1H-benzimidazole1283595-65-2C11H9N3O
- 4-(2-Aminopyrimidin-5-yl)benzaldehyde1111102-42-1C11H9N3O
- 3-(2-Aminopyrimidin-5-yl)benzaldehyde1111102-41-0C11H9N3O
- 3-(1H-Indol-5-yl)-1,2-oxazol-5-amine1896303-06-2C11H9N3O
- 5-{[(Furan-3-yl)methyl]amino}pyridine-2-carbonitrile1597279-27-0C11H9N3O
- 5-(1H-Indol-2-yl)-1,3-oxazol-2-amine1896803-04-5C11H9N3O
- 1-[2-(Isocyanatomethyl)phenyl]-1H-pyrazole2649082-28-8C11H9N3O
- 7-(1-Isocyanatocyclopropyl)-1H-indazole2649003-59-6C11H9N3O
- 5-(1-Isocyanatocyclopropyl)-1H-1,3-benzodiazole2649013-57-8C11H9N3O
- 5-(1H-Indol-7-yl)-1,2-oxazol-3-amine1895364-91-6C11H9N3O
- 5-(1H-Indol-6-yl)-1,2-oxazol-3-amine1891393-60-4C11H9N3O
- 5-(1H-Indol-4-yl)-1,2-oxazol-3-amine1891226-45-1C11H9N3O
- 5-(1H-Indol-5-yl)-1,2-oxazol-3-amine1894495-80-7C11H9N3O
- 3-(1H-Indol-7-yl)-1,2-oxazol-5-amine1894495-92-1C11H9N3O
- 3-(1H-Indol-6-yl)-1,2-oxazol-5-amine1895396-76-5C11H9N3O
- 3-(1H-Indol-4-yl)-1,2-oxazol-5-amine1895364-94-9C11H9N3O
- 6-Amino-[3,4'-bipyridine]-5-carbaldehyde1227490-28-9C11H9N3O
- 6-Amino-[3,3'-bipyridine]-4-carbaldehyde1227607-50-2C11H9N3O
- 6-Amino-[3,4'-bipyridine]-4-carbaldehyde1227493-88-0C11H9N3O
- 6-Amino-[3,3'-bipyridine]-5-carbaldehyde1227599-09-8C11H9N3O
- 2-Amino-4-hydroxy-5-methylquinoline-3-carbonitrile1387526-49-9C11H9N3O
- 2-Amino-4-hydroxy-6-methylquinoline-3-carbonitrile1387520-77-5C11H9N3O
- 5-(6-Aminopyridin-3-yl)pyridine-2-carbaldehyde2138213-09-7C11H9N3O
- N-(Prop-2-yn-1-yl)-1H-indazole-7-carboxamide2069616-41-5C11H9N3O
- 3-Cyano-N-methyl-1H-indole-7-carboxamide2172561-34-9C11H9N3O
- 3-(1H-Indol-3-yl)-1,2-oxazol-5-amine1368871-65-1C11H9N3O
- 5-(1H-Indol-3-yl)-1,2-oxazol-3-amine1368418-41-0C11H9N3O
- 9-Methyl-3,5-dihydro-4H-pyrimido[5,4-b]indol-4-one2386056-88-6C11H9N3O
- 3-(1H-Indol-2-yl)-1,2-oxazol-5-amine1888818-04-9C11H9N3O
- 5-(1H-Indol-2-yl)-1,2-oxazol-3-amine1889501-27-2C11H9N3O
- 5-(1H-Indol-3-yl)-1,2-oxazol-4-amine1889601-22-2C11H9N3O
- 5-(1H-Indol-2-yl)-1,2-oxazol-4-amine1889835-29-3C11H9N3O
- 1-(Azidomethyl)naphthalen-2-ol2228368-12-3C11H9N3O
- 3-(But-2-yn-1-yl)-3H,4H-pyrido[3,2-d]pyrimidin-4-one2640971-69-1C11H9N3O
- 7-Methoxy-1H-pyrrolo[3,2-c][1,8]naphthyridine2636815-38-6C11H9N3O
- N-[4-(Dicyanomethyl)phenyl]acetamide91093-27-5C11H9N3O
- 5-(4-Aminopyridin-3-yl)pyridine-3-carbaldehyde2137753-96-7C11H9N3O
- 2-Amino-6-hydroxy-4-methylquinoline-3-carbonitrile2138218-97-8C11H9N3O
- 4-[5-(Hydroxymethyl)-1H-pyrazol-1-yl]benzonitrile2172560-32-4C11H9N3O
- 2-(1-Isocyanatocyclopropyl)imidazo[1,2-a]pyridine2649071-34-9C11H9N3O
- 3-(1-Isocyanatocyclopropyl)pyrazolo[1,5-a]pyridine2649055-54-7C11H9N3O
- 4-(Isocyanatomethyl)-3-phenyl-1H-pyrazole2648994-94-7C11H9N3O
- 3-(1-Isocyanatocyclopropyl)imidazo[1,2-a]pyridine2649059-97-0C11H9N3O
- 5-(1H-Indol-7-yl)-1,2-oxazol-4-amine2106442-57-1C11H9N3O
- 5-(1H-Indol-6-yl)-1,2-oxazol-4-amine2229136-35-8C11H9N3O
- 3-(1-Isocyanatocyclopropyl)-1H-indazole2649003-34-7C11H9N3O
- 5-(1H-Indol-4-yl)-1,2-oxazol-4-amine2229092-45-7C11H9N3O
- 4-(Isocyanatomethyl)-1-phenyl-1H-pyrazole2649063-65-8C11H9N3O
- 2-(2-Isocyanatoethyl)quinoxaline2649080-52-2C11H9N3O
- 3-[5-(Hydroxymethyl)-1H-pyrazol-1-yl]benzonitrile2172005-79-5C11H9N3O
- 3-Hydroxy-3-(quinoxalin-2-yl)propanenitrile2228607-30-3C11H9N3O
- 2-(1-Isocyanatoethyl)quinoxaline2649064-32-2C11H9N3O
- 3-(1-Isocyanatocyclopropyl)-1H-pyrrolo[2,3-b]pyridine2649069-32-7C11H9N3O
- 5-(1H-Indol-7-yl)-1,3-oxazol-2-amine2229236-46-6C11H9N3O
- 5-(1H-Indol-4-yl)-1,3-oxazol-2-amine2229250-85-3C11H9N3O
- 5-(1H-Indol-5-yl)-1,2-oxazol-4-amine2111274-50-9C11H9N3O
- 5-(1H-Indol-6-yl)-1,3-oxazol-2-amine2228881-18-1C11H9N3O
- 5-(1H-Indol-5-yl)-1,3-oxazol-2-amine2229631-34-7C11H9N3O
- 5-(1-Benzofuran-5-yl)-1H-imidazol-2-amine2228962-55-6C11H9N3O
- 1-Prop-2-ynylbenzimidazole-5-carboxamide2735014-60-3C11H9N3O
- 6-Methyl-2-(5-methylfuran-2-yl)pyrimidine-4-carbonitrile2436318-29-3C11H9N3O
- 2-(Furan-2-yl)-5,6-dimethylpyrimidine-4-carbonitrile2446250-13-9C11H9N3O
- 2-(Furan-3-yl)-5,6-dimethylpyrimidine-4-carbonitrile2444047-30-5C11H9N3O
- 1-(5-(Pyrimidin-5-yl)pyridin-2-yl)ethanone2025155-09-1C11H9N3O
- N-(Prop-2-yn-1-yl)-1H-indazole-5-carboxamide2141200-81-7C11H9N3O
- 2-(1-Methyl-1H-benzo[d]imidazol-2-yl)-3-oxopropanenitrile62591-15-5C11H9N3O
- 5H-Benzo[b]pyrido[4,3-e][1,4]oxazin-4-amine118726-89-9C11H9N3O
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 N-(6-Methyl-1H-indazol-5-yl)prop-2-ynamide, 1-{Furo[3,2-c]pyridin-4-yl}-2-methyl-1H-imidazole, 2-(4-Methyl-1H-pyrazol-1-yl)-1,3-benzoxazole. 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.