Molecular formula
C12H9N3O3
146 compounds have this formula on CompoundList.
- Molar mass
- 243.22g/mol
- Monoisotopic mass
- 243.0644Da
- Atoms
- 27
- Elements
- 4
- Rings plus double bonds
- 10
The formula C12H9N3O3 describes a molecule made of 12 carbon atoms, 9 hydrogen atoms, 3 nitrogen atoms and 3 oxygen atoms. 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 × 1259.26%12.011 × 12 = 144.132 g/mol
- H Hydrogen × 93.73%1.008 × 9 = 9.072 g/mol
- N Nitrogen × 317.28%14.007 × 3 = 42.021 g/mol
- O Oxygen × 319.73%15.999 × 3 = 47.997 g/mol
Look up another formula
Compounds with the formula C12H9N3O3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 146 compounds
4-Hydroxy-4'-nitroazobenzene
CAS 1435-60-5C12H9N3O3
![1-Methyl-4-oxo-1,4-dihydropyrido[1,2-a]pyrrolo[2,3-d]pyrimidine-2-carboxylic acid chemical structure, C12H9N3O3, CAS 724738-59-4](/s/BHMLNQBJJMJWKY-UHFFFAOYSA-N.svg)
1-Methyl-4-oxo-1,4-dihydropyrido[1,2-a]pyrrolo[2,3-d]pyrimidine-2-carboxylic acid
CAS 724738-59-4C12H9N3O3
RefChem:382077
CAS 15911-93-0C12H9N3O3
RefChem:357111
CAS 25849-49-4C12H9N3O3
1-(4-Methoxyphenyl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carbonitrile
CAS 75837-81-9C12H9N3O3
N-(3-Nitrophenyl)isonicotinamide
CAS 68279-91-4C12H9N3O3
Benzamide, 4-nitro-N-2-pyridinyl-
CAS 7498-40-0C12H9N3O3
2-Nitro-N-4-pyridinylbenzamide
CAS 175653-47-1C12H9N3O3
![Phenol, 4-[(2-nitrophenyl)azo]- chemical structure, C12H9N3O3, CAS 2724-85-8](/s/IBDIGFWTFKXXAG-UHFFFAOYSA-N.svg)
Phenol, 4-[(2-nitrophenyl)azo]-
CAS 2724-85-8C12H9N3O3
Pyridine, 4-(p-nitrobenzamido)-
CAS 13160-58-2C12H9N3O3
(E)-4-Oxo-4-(6-quinoxalinylamino)-2-butenoic acid
CAS 551931-32-9C12H9N3O3
2-Nitro-N-pyridin-3-ylbenzamide
CAS 175653-46-0C12H9N3O3
3-(Phenylcarbamoyl)pyrazine-2-carboxylic acid
CAS 34067-92-0C12H9N3O3
Pyridine, 3-(p-nitrobenzamido)-
CAS 13313-18-3C12H9N3O3
3-Nitro-N-pyridin-2-ylbenzamide
CAS 85367-01-7C12H9N3O3
N-Pyrimidinobenzamide-2-carboxylic acid
CAS 17332-60-4C12H9N3O3
![6-[2-(4-Nitrophenyl)hydrazinylidene]cyclohexa-2,4-dien-1-one chemical structure, C12H9N3O3, CAS 15331-60-9](/s/QDXBTHMPDUXYGP-UHFFFAOYSA-N.svg)
6-[2-(4-Nitrophenyl)hydrazinylidene]cyclohexa-2,4-dien-1-one
CAS 15331-60-9C12H9N3O3
![5-Oxo-5,6-dihydro-pyrazolo[1,5-c]quinazoline-2-carboxylic acid methyl ester chemical structure, C12H9N3O3, CAS 69003-05-0](/s/POSVFGZYZQNLOD-UHFFFAOYSA-N.svg)
5-Oxo-5,6-dihydro-pyrazolo[1,5-c]quinazoline-2-carboxylic acid methyl ester
CAS 69003-05-0C12H9N3O3
4-(Pyrazine-2-carboxamido)benzoic acid
CAS 717854-83-6C12H9N3O3
N-(4-Nitrophenyl)pyridine-2-carboxamide
CAS 61349-99-3C12H9N3O3
![(Benzo[4,5]furo[3,2-d]pyrimidin-4-ylamino)-acetic acid chemical structure, C12H9N3O3, CAS 326009-17-0](/s/PZLTURSFHDSGSO-UHFFFAOYSA-N.svg)
(Benzo[4,5]furo[3,2-d]pyrimidin-4-ylamino)-acetic acid
CAS 326009-17-0C12H9N3O3
![1-Ethyl-1,4-dihydro-4-oxo[1,3]dioxolo[4,5-g]cinnoline-3-carbonitrile chemical structure, C12H9N3O3, CAS 28657-79-6](/s/ZJNYDFMLLCPHFY-UHFFFAOYSA-N.svg)
1-Ethyl-1,4-dihydro-4-oxo[1,3]dioxolo[4,5-g]cinnoline-3-carbonitrile
CAS 28657-79-6C12H9N3O3
2-Nitro-N-pyridin-2-ylbenzamide
CAS 96656-49-4C12H9N3O3
![(4-Oxo-1,4-dihydropyrimido[1,2-a]benzimidazol-2-yl)acetic acid chemical structure, C12H9N3O3, CAS 940980-97-2](/s/XOWGDFZASXYENF-UHFFFAOYSA-N.svg)
(4-Oxo-1,4-dihydropyrimido[1,2-a]benzimidazol-2-yl)acetic acid
CAS 940980-97-2C12H9N3O3
- 5-Nitro-2-(pyridin-2-ylamino)cyclohepta-2,4,6-trien-1-one314040-29-4C12H9N3O3
- 2-[(2-Furylmethyl)amino]-5-nitrobenzonitrile852702-44-4C12H9N3O3
- 4'-Nitronicotinanilide13160-62-8C12H9N3O3
- 2-[2-(1,2,4-Oxadiazol-3-yl)ethyl]-1H-isoindole-1,3(2H)-dione1365963-46-7C12H9N3O3
- Methyl 4-oxo-1,4-dihydropyrimido[1,2-b]indazole-2-carboxylate92663-36-0C12H9N3O3
- Methyl 3-oxo-2,3-dihydro-1H-pyrazolo[4,3-c]quinoline-6-carboxylate1235069-46-1C12H9N3O3
- 5-(4-Hydroxy-2-nitrophenyl)-1-methyl-1H-pyrrole-2-carbonitrile2111828-43-2C12H9N3O3
- 4-[(3-Nitrophenyl)hydrazinylidene]cyclohexa-2,5-dien-1-one2011-53-2C12H9N3O3
- 4-(4-Methoxyphenyl)isoxazolo[3,4-d]pyridazin-7(6H)-one952182-88-6C12H9N3O3
- N-(2-Oxo-1,3-dihydrobenzimidazol-5-yl)furan-2-carboxamide339207-13-5C12H9N3O3
- (5E)-5-(5-Methyl-2-oxo-1,2-dihydro-3H-indol-3-ylidene)imidazolidine-2,4-dione113054-13-0C12H9N3O3
- 2-Pyridinecarboxamide, N-(3-nitrophenyl)-90209-83-9C12H9N3O3
- 2-Methyl-3-oxo-2,3-dihydro-1H-pyrazolo[4,3-c]quinoline-8-carboxylic acid1083202-30-5C12H9N3O3
- Benzenamine, 4-nitro-N-nitroso-N-phenyl-3665-70-1C12H9N3O3
- 2-Pyridinecarboxamide, N-(2-nitrophenyl)-90209-82-8C12H9N3O3
- 2-(3-Nitro-phenylamino)-pyridine-3-carbaldehyde113169-20-3C12H9N3O3
- 2-Methyl-3-oxo-2,3-dihydro-1H-pyrazolo[4,3-c]quinoline-7-carboxylic acid1171932-66-3C12H9N3O3
- N-(Benzo[d][1,3]dioxol-5-yl)pyrimidine-2-carboxamide1286727-34-1C12H9N3O3
- 2-Cyano-N'-{[3-oxo-2-benzofuran-1(3H)-yliden]methyl}acetohydrazide338751-57-8C12H9N3O3
- 2-[(5-Oxo-2,5-dihydro-1H-pyrazol-3-yl)methyl]-1H-isoindole-1,3(2H)-dione26384-52-1C12H9N3O3
- 5,10-Dihydro-4-oxo-4H-pyrazolo[5,1-c][1,4]benzodiazepine-2-carboxylic acid87592-06-1C12H9N3O3
- 2-(1H-Imidazol-4-ylmethoxy)-1,3-dihydro-2H-isoindole-1,3-dione38939-71-8C12H9N3O3
- 2-[(2-Amino-1,3-oxazol-4-yl)methyl]-2,3-dihydro-1H-isoindole-1,3-dione2375267-53-9C12H9N3O3
- 2-(5-Methylfuran-2-yl)-5-nitro-1H-benzo[d]imidazole37128-68-0C12H9N3O3
- N-Pyrazin-2-yl-1,3-benzodioxole-5-carboxamide895940-27-9C12H9N3O3
- as-Triazine, 5,6-di-2-furyl-3-methoxy-69467-28-3C12H9N3O3
- 3-Pyridinecarboxamide, N-(2-nitrophenyl)-152751-68-3C12H9N3O3
- 2-[(1H-Pyrazol-5-yl)methoxy]-1H-isoindole-1,3(2H)-dione88529-64-0C12H9N3O3
- 2-((2-Pyrazinylcarbonyl)amino)benzoic acid108204-34-8C12H9N3O3
- 4-Ethoxalylaminophthalonitrile115581-97-0C12H9N3O3
- 2-((3-Methyl-1,2,4-oxadiazol-5-yl)methyl)isoindoline-1,3-dione1061364-37-1C12H9N3O3
- 3-[(Furan-2-yl)methyl]-1H,2H,3H,4H-pyrido[2,3-d]pyrimidine-2,4-dione902922-71-8C12H9N3O3
- Methyl-5-oxo-4,5-dihydropyrazolo[1,5-a]quinazoline-3-carboxylate1000175-85-8C12H9N3O3
- 2-Nitro-4-phenylazophenol55936-40-8C12H9N3O3
- 7-Hydroxy-10-methyl-5-deazaisoalloxazine73077-67-5C12H9N3O3
- 2-(3-Benzyl-2,4,5-trioxoimidazolidin-1-yl)acetonitrile303986-54-1C12H9N3O3
- N-(5-Nitropyridin-2-yl)benzamide99970-58-8C12H9N3O3
- 6-(4-Cyanophenyl)-1,2,3,6-tetrahydro-2-oxo-4-pyrimidinecarboxylic acid721915-57-7C12H9N3O3
- 2-(3-Nitro-4-aminobenzoyl)pyridine62946-40-1C12H9N3O3
- 2-[(5-Methyl-1,3,4-oxadiazol-2-yl)methyl]isoindole-1,3-dione1225138-96-4C12H9N3O3
- Ethyl 6-cyano-4-hydroxy-1,5-naphthyridine-3-carboxylate915977-04-7C12H9N3O3
- 4-Nitro-2-(pyridin-2-ylmethylideneamino)phenol29644-92-6C12H9N3O3
- 2-(1-Methyl-1H-pyrrol-2-yl)-5-nitro-1,3-benzoxazole51299-49-1C12H9N3O3
- 6-Methyl-2-(5-nitrofuran-2-yl)-1H-benzimidazole113608-76-7C12H9N3O3
- 5-(3-Amino-1H-indazol-5-yl)furan-2-carboxylic acid871708-18-8C12H9N3O3
- Methyl 4-hydroxy-9H-pyrimido[4,5-b]indole-7-carboxylate1096471-96-3C12H9N3O3
- Diazene, (4-nitrophenyl)phenyl-, 1-oxide13921-68-1C12H9N3O3
- 8-Oxo-5,6-dihydro-4H,8H-[1,2,5]oxadiazolo[3,4-c]pyrido[3,2,1-ij]quinolin-9-ium-9-olate141945-44-0C12H9N3O3
- Pyrazolo(3,4-d)(1,3)oxazin-4(1H)-one, 6-(2-hydroxyphenyl)-1-methyl-115445-71-1C12H9N3O3
- N-(2-Nitrophenyl)-N-phenylnitrous amide21565-15-1C12H9N3O3
- N-(5-(Benzofuran-2-yl)-1,3,4-oxadiazol-2-yl)acetamide922098-84-8C12H9N3O3
- 4-(3-Nitro-4-aminobenzoyl)pyridine63166-59-6C12H9N3O3
- Methyl 1-acetyl-3-cyano-indazole-4-carboxylate887577-74-4C12H9N3O3
- (1E,2Z)-1-[(Furan-2-yl)methylidene]-2-[(4-nitrophenyl)methylidene]hydrazine74114-74-2C12H9N3O3
- [4-(2,4,6-Trioxotetrahydropyrimidin-1(2H)-yl)phenyl]acetonitrile647023-86-7C12H9N3O3
- 5-(3-Methyl-1H-indazol-5-yl)isoxazole-3-carboxylic acid1093307-31-3C12H9N3O3
- 2-((1H-Imidazol-2-yl)methoxy)isoindoline-1,3-dione78667-05-7C12H9N3O3
- Methyl 4,5-dihydro-4-oxoimidazo[1,5-a]quinoxaline-7-carboxylate221069-36-9C12H9N3O3
- 5-(Furan-2-yl)-3-methylpyrazolo[1,5-a]pyrimidine-7-carboxylic acid1443279-30-8C12H9N3O3
- 4-Hydroxy-9H-1,3,9-triaza-fluorene-6-carboxylic acid methyl ester521286-74-8C12H9N3O3
- 4-Amino-3-methyl-isoxazolo[4,5-c]quinoline-8-carboxylic acid2774613-69-1C12H9N3O3
- Methyl 4,5-dihydro-4-oxopyrazolo[1,5-a]quinoxaline-7-carboxylate2842029-51-8C12H9N3O3
- 3-(4-Oxo-3,4-dihydroquinazolin-3-yl)-2,5-pyrrolidinedione39133-13-6C12H9N3O3
- 6-Ethoxy-5-nitroquinoline-4-carbonitrile54524-96-8C12H9N3O3
- 2,3-Dihydro-8-methoxypyridazino[4,5-b]quinoline-1,4-dione213382-83-3C12H9N3O3
- (6-Amino-3-nitropyridin-2-yl)(phenyl)methanone57059-51-5C12H9N3O3
- 1-Oxo-5,6-dihydro-1H-pyrimido[1,2-a]quinoxaline-2-carboxylic acid88019-12-9C12H9N3O3
- 5-(3-Amino-1H-indazol-6-yl)furan-2-carboxylic acid871709-81-8C12H9N3O3
- 2-((2-Methyl-5-nitroquinolin-8-yl)oxy)acetonitrile88757-93-1C12H9N3O3
- 1-(2-Cyano-5-methoxyphenyl)-1H-pyrazole-4-carboxylic Acid1513241-64-9C12H9N3O3
- 5-(2-Oxo-2,3-dihydro-1H-indol-5-yl)-1H-pyrazole-3-carboxylic acid1383460-31-8C12H9N3O3
- 1-(4-Nitrophenyl)-2-phenoxydiazene63739-01-5C12H9N3O3
- Ethyl 5-(3-cyanophenyl)-1,3,4-oxadiazole-2-carboxylate1710271-75-2C12H9N3O3
- 2-[2-(4-Cyanophenyl)-3-oxo-2,3-dihydro-1H-pyrazol-4-yl]acetic acid2060049-80-9C12H9N3O3
- 2-[2-(3-Cyanophenyl)-3-oxo-2,3-dihydro-1H-pyrazol-4-yl]acetic acid2060058-63-9C12H9N3O3
- 8-Methoxypyrimido[1,2-a]benzimidazole-2-carboxylic acid2098981-49-6C12H9N3O3
Frequently asked questions
What is the molar mass of C12H9N3O3?
The molar mass of C12H9N3O3 is 243.22 g/mol, calculated from standard atomic weights for 12 carbon atoms, 9 hydrogen atoms, 3 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 243.0644 Da.
How many compounds have the formula C12H9N3O3?
CompoundList lists 146 compounds with the molecular formula C12H9N3O3, including 4-Hydroxy-4'-nitroazobenzene, 1-Methyl-4-oxo-1,4-dihydropyrido[1,2-a]pyrrolo[2,3-d]pyrimidine-2-carboxylic acid, RefChem:382077. 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 C12H9N3O3?
C12H9N3O3 has a degree of unsaturation of 10. 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.