Molecular formula
C18H17N3O3
483 compounds have this formula on CompoundList.
- Molar mass
- 323.35g/mol
- Monoisotopic mass
- 323.1270Da
- Atoms
- 41
- Elements
- 4
- Rings plus double bonds
- 12
The formula C18H17N3O3 describes a molecule made of 18 carbon atoms, 17 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 × 1866.86%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 175.30%1.008 × 17 = 17.136 g/mol
- N Nitrogen × 313.00%14.007 × 3 = 42.021 g/mol
- O Oxygen × 314.84%15.999 × 3 = 47.997 g/mol
Look up another formula
Compounds with the formula C18H17N3O3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 483 compounds
2-Amino-6,7-dimethoxy-N-phenylquinoline-3-carboxamide
CAS 405277-62-5C18H17N3O3
N-(2-Methoxyphenyl)-2-(3-methyl-4-oxophthalazin-1-yl)acetamide
CAS 429653-39-4C18H17N3O3
3-(3-Carbazol-9-yl-2-hydroxypropyl)imidazolidine-2,4-dione
CAS 539805-99-7C18H17N3O3
![2-[(E)-2-(Dimethylamino)ethenyl]-3-nitro-1-phenylindol-6-ol chemical structure, C18H17N3O3, CAS 352553-02-7](/s/FHSALPVEMLZVON-ZHACJKMWSA-N.svg)
2-[(E)-2-(Dimethylamino)ethenyl]-3-nitro-1-phenylindol-6-ol
CAS 352553-02-7C18H17N3O3
1-Ethyl-4-hydroxy-2-oxo-N-(pyridin-3-ylmethyl)-1,2-dihydroquinoline-3-carboxamide
CAS 330817-96-4C18H17N3O3
2,7-Diamino-4-(3,4-dimethoxyphenyl)-4H-chromene-3-carbonitrile
CAS 326919-67-9C18H17N3O3
![Ethyl 3-(4-cyano-1-hydroxy-3-methylpyrido[1,2-a]benzimidazol-2-yl)propanoate chemical structure, C18H17N3O3, CAS 385390-68-1](/s/XRZAEZMGAQKFBB-UHFFFAOYSA-N.svg)
Ethyl 3-(4-cyano-1-hydroxy-3-methylpyrido[1,2-a]benzimidazol-2-yl)propanoate
CAS 385390-68-1C18H17N3O3
1-Methyl-3-nitro-4-phenethylamino-1H-quinolin-2-one
CAS 337338-65-5C18H17N3O3
2-(2-Methylpropyl)-1,3-dioxo-N-(pyridin-4-yl)-2,3-dihydro-1H-isoindole-5-carboxamide
CAS 709010-98-0C18H17N3O3
1-Ethyl-4-hydroxy-2-oxo-N-(pyridin-2-ylmethyl)-1,2-dihydroquinoline-3-carboxamide
CAS 300837-35-8C18H17N3O3
N-(4-Methoxyphenyl)-2-(3-methyl-4-oxo-3,4-dihydrophthalazin-1-yl)acetamide
CAS 431930-94-8C18H17N3O3
CP-457920
CAS 220860-50-4C18H17N3O3
2-Butyl-3-(2-nitrophenyl)quinazolin-4-one
CAS 375829-22-4C18H17N3O3
![(4-Oxobenzo[d][1,2,3]triazin-3(4H)-yl)methyl 2-phenylbutanoate chemical structure, C18H17N3O3, CAS 454677-56-6](/s/CRBOGZGTLAMYEL-UHFFFAOYSA-N.svg)
(4-Oxobenzo[d][1,2,3]triazin-3(4H)-yl)methyl 2-phenylbutanoate
CAS 454677-56-6C18H17N3O3
![N-[(6-Methoxy-2-oxo-1H-quinolin-3-yl)methyl]-N-methyl-4-pyridinecarboxamide chemical structure, C18H17N3O3, CAS 673493-45-3](/s/YUMYPBDOPOHTHJ-UHFFFAOYSA-N.svg)
N-[(6-Methoxy-2-oxo-1H-quinolin-3-yl)methyl]-N-methyl-4-pyridinecarboxamide
CAS 673493-45-3C18H17N3O3
![2-Propenoic acid, 2-methyl-, 2-[3-(2H-benzotriazol-2-yl)-4-hydroxyphenyl]ethyl ester chemical structure, C18H17N3O3, CAS 96478-09-0](/s/VCYCUECVHJJFIQ-UHFFFAOYSA-N.svg)
2-Propenoic acid, 2-methyl-, 2-[3-(2H-benzotriazol-2-yl)-4-hydroxyphenyl]ethyl ester
CAS 96478-09-0C18H17N3O3
3,4-Dimethoxy-N-(5-phenyl-1H-pyrazol-3-yl)benzamide
CAS 942655-44-9C18H17N3O3
2-(2-Methylpropyl)-1,3-dioxo-N-pyridin-2-ylisoindole-5-carboxamide
CAS 497062-80-3C18H17N3O3
2-(3,4-Dimethoxyphenyl)quinoline-4-carbohydrazide
CAS 350997-66-9C18H17N3O3
4-(3,4-Dimethylanilino)-1-methyl-3-nitroquinolin-2-one
CAS 373611-73-5C18H17N3O3
N-(2-Hydroxyethyl)-2-(1-oxo-4-phenylphthalazin-2-yl)acetamide
CAS 364625-17-2C18H17N3O3
![N-[3-(7-Methyl-imidazo[1,2-a]pyridin-2-yl)-phenyl]-succinamic acid chemical structure, C18H17N3O3, CAS 303205-05-2](/s/BLOMLUFRJUJUNS-UHFFFAOYSA-N.svg)
N-[3-(7-Methyl-imidazo[1,2-a]pyridin-2-yl)-phenyl]-succinamic acid
CAS 303205-05-2C18H17N3O3
![2-[2-Amino-5-(4-methoxyphenyl)pyrimidin-4-yl]-5-methoxyphenol chemical structure, C18H17N3O3, CAS 87538-73-6](/s/CKQBIKHXMSBFTE-UHFFFAOYSA-N.svg)
2-[2-Amino-5-(4-methoxyphenyl)pyrimidin-4-yl]-5-methoxyphenol
CAS 87538-73-6C18H17N3O3
N-(4-Methoxyphenyl)-2-(4-methyl-1-oxophthalazin-2-yl)acetamide
CAS 352219-88-6C18H17N3O3
- 4-[Benzyl(methyl)amino]-1-methyl-3-nitroquinolin-2-one850803-28-0C18H17N3O3
- N-Methyl-2-[4-(3-methyl-4-oxophthalazin-1-yl)phenoxy]acetamide696635-00-4C18H17N3O3
- (Z)-2-Cyano-3-(5-morpholin-4-ylfuran-2-yl)-N-phenylprop-2-enamide333434-16-5C18H17N3O3
- N-(2,8-Dimethyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl)-2-phenoxyacetamide897617-07-1C18H17N3O3
- 2-Butyl-1,3-dioxo-N-pyridin-3-ylisoindole-5-carboxamide500264-51-7C18H17N3O3
- 1-[3-(4-Nitrophenyl)-5-phenyl-3,4-dihydropyrazol-2-yl]propan-1-one381203-51-6C18H17N3O3
- N-(2,3-Dimethyl-phenyl)-2-(3-furan-2-yl-6-oxo-6H-pyridazin-1-yl)-acetamide879054-96-3C18H17N3O3
- N-(2-Methoxybenzyl)-2-(4-oxoquinazolin-3(4H)-yl)acetamide362493-35-4C18H17N3O3
- 6-(Furan-2-ylmethyl)-1-methyl-4-phenyl-3,4,6,7-tetrahydro-1H-pyrrolo[3,4-d]pyrimidine-2,5-dione695224-05-6C18H17N3O3
- N-[2-(5-Methyl-1H-indol-3-yl)ethyl]-4-nitrobenzamide775289-93-5C18H17N3O3
- 3-[(E)-(3,4-Dimethoxyphenyl)methylideneamino]-2-methylquinazolin-4-one76716-05-7C18H17N3O3
- 2-[2-Amino-5-(2-methoxyphenyl)pyrimidin-4-yl]-5-methoxyphenol850800-18-9C18H17N3O3
- 4-Methoxy-N-[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]benzeneacetamide717875-83-7C18H17N3O3
- N-[(2-Methyl-1H-indol-5-yl)methyl]-2-(4-nitrophenyl)acetamide852136-74-4C18H17N3O3
- N-(2-Hydroxyethyl)-4-(3-methyl-4-oxophthalazin-1-yl)benzamide847046-86-0C18H17N3O3
- N-(1,3-Dimethyl-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)-2-(naphthalen-1-yl)acetamide633296-57-8C18H17N3O3
- 2,7-Diamino-4-(2,5-dimethoxyphenyl)-4H-chromene-3-carbonitrile331856-38-3C18H17N3O3
- 2,7-Diamino-4-(2,3-dimethoxyphenyl)-4H-chromene-3-carbonitrile5278-75-1C18H17N3O3
- 2-(3-Methylphenoxy)-N-[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]acetamide838886-34-3C18H17N3O3
- N-((1,2-Dimethyl-1H-indol-5-yl)methyl)-3-nitrobenzamide892473-85-7C18H17N3O3
- 4-Methyl-N-[(2-methyl-1H-indol-5-yl)methyl]-3-nitrobenzamide863001-87-0C18H17N3O3
- 1-(1,3-Benzodioxol-5-yl)-2-(1,2-dihydroimidazo[1,2-a]benzimidazol-4-yl)ethanol442573-05-9C18H17N3O3
- 5-(Methoxymethyl)-4-[(4-phenoxyanilino)methylene]-2,4-dihydro-3H-pyrazol-3-one477851-00-6C18H17N3O3
- [2-(3,5-Dimethylanilino)-2-oxoethyl] 1H-indazole-3-carboxylate399004-05-8C18H17N3O3
- N-Ethyl-2-[3-(2-methoxyphenyl)-1,2,4-oxadiazol-5-yl]benzamide862483-96-3C18H17N3O3
- [2-Oxo-2-(2-phenylethylamino)ethyl] 1H-indazole-3-carboxylate380565-20-8C18H17N3O3
- 2-Methyl-N-[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]-N-prop-2-enylfuran-3-carboxamide896660-21-2C18H17N3O3
- 5-Methoxy-N-[(E)-(2-methoxyphenyl)methylideneamino]-1H-indole-2-carboxamide896810-72-3C18H17N3O3
- 4-[(3,5-Dimethyl-1,2-oxazol-4-yl)methoxy]-N-pyridin-2-ylbenzamide930482-68-1C18H17N3O3
- N-{2,9-Dimethyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl}-2-phenoxyacetamide941965-54-4C18H17N3O3
- 6H-Quinazolin-5-one, 7,7-dimethyl-2-(3-oxo-1,3-dihydroisobenzofuran-1-ylamino)-7,8-dihydro-523991-47-1C18H17N3O3
- 4-[(3,4-Dihydroxybenzylidene)amino]-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one78439-82-4C18H17N3O3
- Cyclopropanecarboxylic acid, 2-oxo-2-[[4-(2-phenyldiazenyl)phenyl]amino]ethyl ester730942-61-7C18H17N3O3
- Ethyl 4-(2-furyl)-2-methyl-1,4-dihydropyrimido[1,2-a]benzimidazole-3-carboxylate727405-57-4C18H17N3O3
- Alpha,3-bis-(phenylcarbamoyl)-2-methyleneoxazolidine14037-24-2C18H17N3O3
- N'-(1H-Indol-3-ylmethylene)-3,4-dimethoxybenzohydrazide113143-36-5C18H17N3O3
- N-(2-Methoxy-5-methylphenyl)-7-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxamide896013-82-4C18H17N3O3
- N-(3,4-Dihydro-1H-[1,4]oxazino[4,3-a]benzimidazol-8-yl)-2-phenoxyacetamide900258-63-1C18H17N3O3
- 2-Hydroxy-8-methyl-4-oxo-N-(2-phenylethyl)-4H-pyrido[1,2-a]pyrimidine-3-carboxamide886897-15-0C18H17N3O3
- N-(2-Methoxyphenyl)-2-oxo-2-(2-(3-phenyl-2-propenylidene)hydrazino)acetamide477733-92-9C18H17N3O3
- N-(4-Methoxyphenyl)-2-oxo-2-(2-(3-phenyl-2-propenylidene)hydrazino)acetamide765303-52-4C18H17N3O3
- 2-(1,3-Dioxoisoindol-2-yl)-3-methyl-N-pyridin-3-ylbutanamide611176-75-1C18H17N3O3
- 8-Benzoyl-6-ethyl-7A,8-dihydro-4AH-pyrrolo(3',4':3,4)pyrrolo(1,2-B)pyridazine-5,7(4BH,6H)-dione882865-46-5C18H17N3O3
- N-(3-Methoxyphenyl)-2-oxo-2-(2-(3-phenyl-2-propenylidene)hydrazino)acetamide765303-50-2C18H17N3O3
- N-[5-(2,5-Dimethylphenyl)-1,3,4-oxadiazol-2-yl]-2-phenoxyacetamide891125-92-1C18H17N3O3
- 2-Butyl-3-(4-nitrophenyl)quinazolin-4-one361984-01-2C18H17N3O3
- Ethyl 4-[2-(1H-1,3-benzodiazol-1-yl)acetamido]benzoate777873-06-0C18H17N3O3
- 2-(3-Methylphenoxy)-N-[(4-oxo-3H-phthalazin-1-yl)methyl]acetamide899984-98-6C18H17N3O3
- N-(4-Methoxybenzyl)-7-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxamide877649-22-4C18H17N3O3
- 3-[(E)-(2,5-Dimethoxyphenyl)methylideneamino]-2-methylquinazolin-4-one312272-24-5C18H17N3O3
- 1-(3-Methoxy-4-oxazol-5-yl-phenyl)-3-m-tolyl-urea198820-46-1C18H17N3O3
- 2-tert-Butyl-1,3-dioxo-N-pyridin-3-ylisoindole-5-carboxamide364739-96-8C18H17N3O3
- N-(3-Methoxyphenyl)-3-(4-oxoquinazolin-3-yl)propanamide591212-27-0C18H17N3O3
- 2-Hydroxy-8-methyl-N-(4-methylbenzyl)-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxamide886896-79-3C18H17N3O3
- 2-Hydroxy-9-methyl-N-(4-methylbenzyl)-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxamide886894-29-7C18H17N3O3
- 2-Hydroxy-9-methyl-4-oxo-N-(1-phenylethyl)-4H-pyrido[1,2-a]pyrimidine-3-carboxamide886894-39-9C18H17N3O3
- N-Benzyloxycarbonylphenylalanine diazomethyl ketone15196-02-8C18H17N3O3
- 2-Hydroxy-8-methyl-4-oxo-N-(1-phenylethyl)-4H-pyrido[1,2-a]pyrimidine-3-carboxamide886896-89-5C18H17N3O3
- 1-(3-Methylbenzyl)-N-(5-methylisoxazol-3-yl)-2-oxo-1,2-dihydropyridine-3-carboxamide959505-65-8C18H17N3O3
- 2-Hydroxy-9-methyl-4-oxo-N-phenethyl-4H-pyrido[1,2-a]pyrimidine-3-carboxamide886894-75-3C18H17N3O3
- 2-[3-(2-Furyl)-6-oxo-1(6H)-pyridazinyl]-N-phenethylacetamide899946-13-5C18H17N3O3
- 5-(1-Benzyl-2,6-dimethylpyridin-4(1H)-ylidene)pyrimidine-2,4,6(1H,3H,5H)-trione93873-27-9C18H17N3O3
- 1-[3-(3-Nitrophenyl)-5-phenyl-3,4-dihydropyrazol-2-yl]propan-1-one381694-02-6C18H17N3O3
- 6-Quinoxalinecarboxamide, 1,2-dihydro-N-hydroxy-2-oxo-3-(3-phenylpropyl)-1201916-31-5C18H17N3O3
- (4-Oxo-1,2,3-benzotriazin-3-yl)methyl 4-phenylbutanoate851862-97-0C18H17N3O3
- 1-(Benzo[d][1,3]dioxol-5-ylmethyl)-3-(1-methyl-1H-indol-3-yl)urea899753-60-7C18H17N3O3
- N-(4-Acetylphenyl)-2-(3-oxo-1,2,3,4-tetrahydroquinoxalin-2-yl)acetamide1009727-00-7C18H17N3O3
- N-((1,2-Dimethyl-1H-indol-5-yl)methyl)-2-nitrobenzamide852137-48-5C18H17N3O3
- 2-Ethoxy-N-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzamide899745-44-9C18H17N3O3
- 1-Ethyl-N-(3-hydroxyphenyl)-7-methyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxamide438575-96-3C18H17N3O3
- N-(4-Cyanophenyl)-8-methoxy-6-oxo-1,3,4,6-tetrahydro-2H-quinolizine-9-carboxamide1775299-85-8C18H17N3O3
- N1-(2-cyanophenyl)-N2-(2-hydroxy-3-phenylpropyl)oxalamide1351618-54-6C18H17N3O3
- 2-[2-(3-Phenyl-1,2,4-oxadiazol-5-yl)ethyl]-3a,4,7,7a-tetrahydroisoindole-1,3-dione915886-05-4C18H17N3O3
- N-Methyl-2-phenoxy-N-[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]acetamide879575-39-0C18H17N3O3
- N-(4-Phenyl-1,2,5-oxadiazol-3-yl)-2-propoxybenzamide874129-49-4C18H17N3O3
- Methyl 4-(3-(1-methyl-1H-indol-3-yl)ureido)benzoate922983-46-8C18H17N3O3
Frequently asked questions
What is the molar mass of C18H17N3O3?
The molar mass of C18H17N3O3 is 323.35 g/mol, calculated from standard atomic weights for 18 carbon atoms, 17 hydrogen atoms, 3 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 323.1270 Da.
How many compounds have the formula C18H17N3O3?
CompoundList lists 483 compounds with the molecular formula C18H17N3O3, including 2-Amino-6,7-dimethoxy-N-phenylquinoline-3-carboxamide, N-(2-Methoxyphenyl)-2-(3-methyl-4-oxophthalazin-1-yl)acetamide, 3-(3-Carbazol-9-yl-2-hydroxypropyl)imidazolidine-2,4-dione. 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 C18H17N3O3?
C18H17N3O3 has a degree of unsaturation of 12. 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.