Molecular formula
C18H13N3O3
94 compounds have this formula on CompoundList.
- Molar mass
- 319.32g/mol
- Monoisotopic mass
- 319.0957Da
- Atoms
- 37
- Elements
- 4
- Rings plus double bonds
- 14
The formula C18H13N3O3 describes a molecule made of 18 carbon atoms, 13 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 × 1867.71%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 134.10%1.008 × 13 = 13.104 g/mol
- N Nitrogen × 313.16%14.007 × 3 = 42.021 g/mol
- O Oxygen × 315.03%15.999 × 3 = 47.997 g/mol
Look up another formula
Compounds with the formula C18H13N3O3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 94 of 94 compounds
6-Methoxy-3-(5-phenyl-1,2,4-oxadiazol-3-yl)quinolin-2(1H)-one
CAS 714932-54-4C18H13N3O3
1-(Furan-2-ylmethyl)-6-phenyl-1H-pyrazolo(3,4-b)pyridine-4-carboxylic acid
CAS 929974-37-8C18H13N3O3
![6-(Furan-2-yl)-3-methyl-1-phenyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid chemical structure, C18H13N3O3, CAS 565167-01-3](/s/ZOUZSYLRQPADOJ-UHFFFAOYSA-N.svg)
6-(Furan-2-yl)-3-methyl-1-phenyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid
CAS 565167-01-3C18H13N3O3
![N-(2-Methyl-5-[1,3]oxazolo[4,5-b]pyridin-2-ylphenyl)-2-furamide chemical structure, C18H13N3O3, CAS 303131-49-9](/s/MECWWAXYJSIBLW-UHFFFAOYSA-N.svg)
N-(2-Methyl-5-[1,3]oxazolo[4,5-b]pyridin-2-ylphenyl)-2-furamide
CAS 303131-49-9C18H13N3O3
2-Naphthalenecarboxamide, N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-
CAS 26848-40-8C18H13N3O3
![{2-[2-(1H-Benzoimidazol-2-yl)-2-cyano-vinyl]-phenoxy}-acetic acid chemical structure, C18H13N3O3, CAS 331843-33-5](/s/GCFUPKXQYKBDFB-UKTHLTGXSA-N.svg)
{2-[2-(1H-Benzoimidazol-2-yl)-2-cyano-vinyl]-phenoxy}-acetic acid
CAS 331843-33-5C18H13N3O3
5-(Furan-2-yl)-3-(2-methoxy-6-phenylpyridin-3-yl)-1,2,4-oxadiazole
CAS 701938-39-8C18H13N3O3
![6-Benzyl-2-oxo-1,6,8-triazatricyclo[7.4.0.0,3,7]trideca-3(7),4,8,10,12-pentaene-5-carboxylic acid chemical structure, C18H13N3O3, CAS 885461-22-3](/s/JGKUVEBUQZYNGR-UHFFFAOYSA-N.svg)
6-Benzyl-2-oxo-1,6,8-triazatricyclo[7.4.0.0,3,7]trideca-3(7),4,8,10,12-pentaene-5-carboxylic acid
CAS 885461-22-3C18H13N3O3
![N-[2-Methyl-3-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenyl]furan-2-carboxamide chemical structure, C18H13N3O3, CAS 328907-82-0](/s/QIIKJANAWUWKFB-UHFFFAOYSA-N.svg)
N-[2-Methyl-3-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenyl]furan-2-carboxamide
CAS 328907-82-0C18H13N3O3
N-(2-Cyanophenyl)-3-(1,3-dioxoisoindolin-2-yl)propanamide
CAS 441745-38-6C18H13N3O3
![[2-(2-Cyanoanilino)-2-oxoethyl] 1H-indole-3-carboxylate chemical structure, C18H13N3O3, CAS 878234-25-4](/s/SKXBDKLPUOJSGF-UHFFFAOYSA-N.svg)
[2-(2-Cyanoanilino)-2-oxoethyl] 1H-indole-3-carboxylate
CAS 878234-25-4C18H13N3O3
![(2Z)-2-[(3-Cyanophenyl)imino]-7-methoxy-2H-chromene-3-carboxamide chemical structure, C18H13N3O3, CAS 325856-88-0](/s/FERWQCYFOJPYLU-UHFFFAOYSA-N.svg)
(2Z)-2-[(3-Cyanophenyl)imino]-7-methoxy-2H-chromene-3-carboxamide
CAS 325856-88-0C18H13N3O3
(Z)-2-((2-Cyanophenyl)imino)-8-methoxy-2H-chromene-3-carboxamide
CAS 388623-92-5C18H13N3O3
![(2Z)-2-[(3-Cyanophenyl)imino]-8-methoxy-2H-chromene-3-carboxamide chemical structure, C18H13N3O3, CAS 325856-98-2](/s/GOFIAHRCBSLVKP-UHFFFAOYSA-N.svg)
(2Z)-2-[(3-Cyanophenyl)imino]-8-methoxy-2H-chromene-3-carboxamide
CAS 325856-98-2C18H13N3O3
![(2Z)-2-[(4-Cyanophenyl)imino]-6-methoxy-2H-chromene-3-carboxamide chemical structure, C18H13N3O3, CAS 1321895-68-4](/s/YSHJHMJNMGEUEZ-UHFFFAOYSA-N.svg)
(2Z)-2-[(4-Cyanophenyl)imino]-6-methoxy-2H-chromene-3-carboxamide
CAS 1321895-68-4C18H13N3O3
N-(2-Cyanophenyl)-2-(1,3-dioxoisoindol-2-yl)propanamide
CAS 352540-55-7C18H13N3O3
![(2Z)-2-[(3-Cyanophenyl)imino]-6-methoxy-2H-chromene-3-carboxamide chemical structure, C18H13N3O3, CAS 325856-78-8](/s/MLAGQSPHVSGIQN-UHFFFAOYSA-N.svg)
(2Z)-2-[(3-Cyanophenyl)imino]-6-methoxy-2H-chromene-3-carboxamide
CAS 325856-78-8C18H13N3O3
2-(4-Cyanophenyl)imino-8-methoxychromene-3-carboxamide
CAS 325856-97-1C18H13N3O3
![4-[6-Hydroxy-3-(4-hydroxyphenyl)pyrazolo[1,5-a]pyrimidin-2(1H)-ylidene]cyclohexa-2,5-dien-1-one chemical structure, C18H13N3O3, CAS 924907-75-5](/s/XZDBAWYEMYSRFY-UHFFFAOYSA-N.svg)
4-[6-Hydroxy-3-(4-hydroxyphenyl)pyrazolo[1,5-a]pyrimidin-2(1H)-ylidene]cyclohexa-2,5-dien-1-one
CAS 924907-75-5C18H13N3O3
N-(2-Cyanophenyl)-4-(2,5-dioxopyrrolidin-1-yl)benzamide
CAS 477497-62-4C18H13N3O3
2-(4-Cyanophenyl)imino-7-methoxychromene-3-carboxamide
CAS 325856-87-9C18H13N3O3
![N-(3-(Benzo[d]oxazol-2-yl)phenyl)-5-methylisoxazole-3-carboxamide chemical structure, C18H13N3O3, CAS 941991-07-7](/s/QIRMXIBGIRAIJP-UHFFFAOYSA-N.svg)
N-(3-(Benzo[d]oxazol-2-yl)phenyl)-5-methylisoxazole-3-carboxamide
CAS 941991-07-7C18H13N3O3
![2-[[3-(2-Methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-1H-isoindole-1,3(2H)-dione chemical structure, C18H13N3O3, CAS 219611-75-3](/s/VMEGRKXIKDXDAF-UHFFFAOYSA-N.svg)
2-[[3-(2-Methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-1H-isoindole-1,3(2H)-dione
CAS 219611-75-3C18H13N3O3
![Furan-2-carboxylic acid 4-oxazolo[4,5-b]pyridin-2-yl-benzylamide chemical structure, C18H13N3O3, CAS 878415-97-5](/s/DZESMOZRLWVQAC-UHFFFAOYSA-N.svg)
Furan-2-carboxylic acid 4-oxazolo[4,5-b]pyridin-2-yl-benzylamide
CAS 878415-97-5C18H13N3O3
- N-[(5-Phenyl-1,2,4-oxadiazol-3-yl)methyl]-1-benzofuran-2-carboxamide921143-16-0C18H13N3O3
- 4-(4-Methoxyphenyl)pyrimido[1,2-b]indazole-2-carboxylic acid1435989-87-9C18H13N3O3
- N-[(E)-Naphthalen-2-ylmethylideneamino]-3-nitrobenzamide26707-33-5C18H13N3O3
- 2-((5-(p-Tolyl)-1,3,4-oxadiazol-2-yl)methyl)isoindoline-1,3-dione951899-04-0C18H13N3O3
- 2H-1,4-Benzodiazepin-2-one, 1,3-dihydro-7-nitro-5-phenyl-1-(2-propynyl)-52465-42-6C18H13N3O3
- N-(5-(Furan-2-yl)-1,3,4-oxadiazol-2-yl)-2-(naphthalen-1-yl)acetamide851095-49-3C18H13N3O3
- 1H-Indole-2-carboxylic acid, 5-[(1H-indol-2-ylcarbonyl)amino]-101134-91-2C18H13N3O3
- 1-Oxo-N-(quinoxalin-6-yl)-3,4-dihydro-1H-isochromene-3-carboxamide921069-20-7C18H13N3O3
- 2-[2-(3-Phenyl-1,2,4-oxadiazol-5-yl)ethyl]-1H-isoindole-1,3(2H)-dione182231-45-4C18H13N3O3
- Phthalimide, N-((2,3-dihydrobenzimidazo(1,2-b)oxazol-2-yl)methyl)-61986-26-3C18H13N3O3
- Pyrazolo(3,4-d)(1,3)oxazin-4(1H)-one, 6-(2-methoxyphenyl)-1-phenyl-138188-02-0C18H13N3O3
- (E)-3-(1,3-Benzodioxol-5-yl)-1-[4-(1,2,4-triazol-1-yl)phenyl]prop-2-en-1-one692287-51-7C18H13N3O3
- 2-[(3-Benzyl-1,2,4-oxadiazol-5-yl)methyl]-2,3-dihydro-1H-isoindole-1,3-dione1170230-02-0C18H13N3O3
- N-(5-(Benzofuran-2-yl)-1,3,4-oxadiazol-2-yl)-3-methylbenzamide922043-73-0C18H13N3O3
- 5-(Furan-2-yl)-N-(2-methylquinolin-5-yl)isoxazole-3-carboxamide1203018-03-4C18H13N3O3
- N-(5-Methyl-2-phenyloxazolo[5,4-b]pyridin-6-yl)furan-3-carboxamide2034317-99-0C18H13N3O3
- 3-(3-(4-Methoxyphenyl)-1,2,4-oxadiazol-5-yl)quinolin-4(1H)-one1081113-21-4C18H13N3O3
- N-[(E)-Naphthalen-2-ylmethylideneamino]-4-nitrobenzamide26683-33-0C18H13N3O3
- 2-[1-(3-Phenyl-1,2,4-oxadiazol-5-yl)ethyl]isoindole-1,3-dione182231-48-7C18H13N3O3
- N-(5-Methyl-1,2-oxazol-3-yl)-3-phenyl-2,1-benzoxazole-5-carboxamide890647-33-3C18H13N3O3
- 3-Methyl-N-(4-phenyl-1,2,5-oxadiazol-3-yl)-1-benzofuran-2-carboxamide879576-48-4C18H13N3O3
- {1-[(4-Nitrophenyl)methyl]-2-oxo-1,2-dihydroquinolin-4-yl}acetonitrile61304-97-0C18H13N3O3
- 4-((2-Methylbenzofuro[3,2-d]pyrimidin-4-yl)amino)benzoic acid406930-43-6C18H13N3O3
- N-(3-(Benzo[d]oxazol-2-yl)phenyl)-3-methylisoxazole-5-carboxamide946318-77-0C18H13N3O3
- Ethyl 6-oxo-6H-pyrido[2',1':2,3]pyrimido[5,4-c]quinoline-11-carboxylate1015605-23-8C18H13N3O3
- 1-Methyl-1H-benzo[d]imidazol-5-yl 5-phenylisoxazole-3-carboxylate1351619-98-1C18H13N3O3
- 3-(3-(3-Methoxyphenyl)-1,2,4-oxadiazol-5-yl)quinolin-4(1H)-one1207015-28-8C18H13N3O3
- 2-Cyano-5-(2-nitrophenyl)-N-phenylpenta-2,4-dienamide733044-10-5C18H13N3O3
- N-[2-Methyl-4-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenyl]furan-2-carboxamide839692-72-7C18H13N3O3
- {2-[(3-Nitropyridin-2-yl)amino]phenyl}(phenyl)methanone89153-91-3C18H13N3O3
- N-(4-(Benzo[d]oxazol-2-yl)phenyl)-5-methylisoxazole-3-carboxamide941903-19-1C18H13N3O3
- N-((5-(Furan-2-yl)isoxazol-3-yl)methyl)quinoline-2-carboxamide1207048-13-2C18H13N3O3
- 4-(3-(4-Methoxyphenyl)-1,2,4-oxadiazol-5-yl)quinolin-2(1H)-one1031937-45-7C18H13N3O3
- Propanedinitrile, [1-(4-nitrophenyl)-3-oxo-3-phenylpropyl]-88783-75-9C18H13N3O3
- N-(5-Methyl-2-phenyloxazolo[5,4-b]pyridin-6-yl)furan-2-carboxamide2034317-11-6C18H13N3O3
- 6-(Benzofuran-2-carbonyl)-2-oxo-1,2,5,6,7,8-hexahydro-1,6-naphthyridine-3-carbonitrile2034305-99-0C18H13N3O3
- N-((3-(Furan-3-yl)pyrazin-2-yl)methyl)benzofuran-2-carboxamide2034611-52-2C18H13N3O3
- N-((3-(Furan-2-yl)pyrazin-2-yl)methyl)benzofuran-2-carboxamide2034498-74-1C18H13N3O3
- 3-(3-(2-Methoxyphenyl)-1,2,4-oxadiazol-5-yl)quinolin-4(1H)-one1207046-45-4C18H13N3O3
- Methyl6-(1-phenyl-1H-pyrazol-4-yl)-1,2-benzoxazole-3-carboxylate2418722-13-9C18H13N3O3
- N-(4-(Benzo[d]oxazol-2-yl)phenyl)-3-methylisoxazole-5-carboxamide953143-26-5C18H13N3O3
- 2-Cyano-3-(furan-2-yl)-N-[3-(5-methyl-1,3-oxazol-2-yl)phenyl]prop-2-enamide1356819-59-4C18H13N3O3
- 2-(5H-Imidazo[5,1-a]isoindol-5-yl)-1-(3-nitrophenyl)ethanone1402836-59-2C18H13N3O3
- (Z)-2-Cyano-3-(furan-2-yl)-N-(8-methoxyquinolin-5-yl)prop-2-enamide1375270-88-4C18H13N3O3
- N-{[2,4'-Bipyridine]-5-yl}-2H-1,3-benzodioxole-5-carboxamide2097860-03-0C18H13N3O3
- 7-Hydroxy-6-methoxy-4-(quinolin-7-yloxy)quinazoline288385-33-1C18H13N3O3
- KI-Tox-A31351116-34-1C18H13N3O3
- 2-{[(2Z)-3-Cyano-8-methoxy-2H-chromen-2-ylidene]amino}benzamide2549133-25-5C18H13N3O3
- 2-((5-(5H-Pyrido[4,3-B]indol-7-yl)pyridin-2-yl)oxy)acetic acid2267291-28-9C18H13N3O3
- Methyl3-[5-(4-cyano-2-methylphenyl)-1,2,4-oxadiazol-3-yl]benzoate2416231-77-9C18H13N3O3
- N-(3-Cyanophenyl)-3-(1,3-dioxoisoindolin-2-yl)propanamide794574-17-7C18H13N3O3
- 5-Hydroxy-N-(1H-indol-6-yl)-4-oxo-1H-quinoline-3-carboxamide873051-32-2C18H13N3O3
- 2-Cyano-3-{4-[2-(4-nitrophenyl)ethenyl]phenyl}prop-2-enamide62569-45-3C18H13N3O3
- Benzyl N-(4-cyano-2-phenyl-1,3-oxazol-5-yl)carbamate2680838-85-9C18H13N3O3
- 2,3-Dihydro-3-hydroxy-2-(6-phenoxy-3-pyridazinyl)-1H-isoindol-1-one39539-93-0C18H13N3O3
- 1-Benzyl-2-(5-nitrofuran-2-yl)-1H-benzimidazole22944-72-5C18H13N3O3
- 2-[3-(1H-Indazol-3-yl)-3-oxopropyl]-1H-isoindole-1,3(2H)-dione89587-15-5C18H13N3O3
- 4-(4-Methoxyphenyl)imidazo[1,2-a]quinoxaline-7-carboxylic acid930743-57-0C18H13N3O3
- 7-Methoxy-3-(2-phenyl-2H-1,2,3-triazol-4-yl)-2H-1-benzopyran-2-one52084-90-9C18H13N3O3
- 2-Diazonio-1-(6-methoxy-2-phenoxyquinolin-4-yl)ethen-1-olate359784-28-4C18H13N3O3
- 7-(4-Methoxy-2H-1,2,3-triazol-2-yl)-3-phenyl-2H-1-benzopyran-2-one65145-89-3C18H13N3O3
- [5-(2-Azido-4-methoxyphenyl)furan-2-yl](phenyl)methanone62144-44-9C18H13N3O3
- 5-[3-(4-Methoxyphenyl)-1,2-oxazol-5-yl]-3-phenyl-1,2,4-oxadiazole919117-20-7C18H13N3O3
- 5-[3-(2-Methoxyphenyl)-1,2-benzoxazol-7-yl]-1H-pyrimidin-6-one1428881-79-1C18H13N3O3
- 8H-Quinazolino[4,3-b]quinazoline-6-carboxylic acid, 8-oxo-, ethyl ester1795370-22-7C18H13N3O3
- 2-(2-Imino-8-methoxychromen-3-yl)-3H-quinazolin-4-one2319923-03-8C18H13N3O3
- Benzyl N-(3-cyano-4-hydroxyquinolin-2-yl)carbamate2680815-74-9C18H13N3O3
- Benzyl N-(4-cyano-3-phenyl-1,2-oxazol-5-yl)carbamate2680885-47-4C18H13N3O3
- 3-(1,3-Benzoxazol-6-ylamino)-4-(4-methylanilino)cyclobut-3-ene-1,2-dione3021527-82-9C18H13N3O3
- 3-(4-(4-Methoxyphenyl)-1H-1,2,3-triazol-1-yl)-2H-chromen-2-one885474-37-3C18H13N3O3
Frequently asked questions
What is the molar mass of C18H13N3O3?
The molar mass of C18H13N3O3 is 319.32 g/mol, calculated from standard atomic weights for 18 carbon atoms, 13 hydrogen atoms, 3 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 319.0957 Da.
How many compounds have the formula C18H13N3O3?
CompoundList lists 94 compounds with the molecular formula C18H13N3O3, including 6-Methoxy-3-(5-phenyl-1,2,4-oxadiazol-3-yl)quinolin-2(1H)-one, 1-(Furan-2-ylmethyl)-6-phenyl-1H-pyrazolo(3,4-b)pyridine-4-carboxylic acid, 6-(Furan-2-yl)-3-methyl-1-phenyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid. 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 C18H13N3O3?
C18H13N3O3 has a degree of unsaturation of 14. 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.