Molecular formula
C18H18N2O3
587 compounds have this formula on CompoundList.
- Molar mass
- 310.35g/mol
- Monoisotopic mass
- 310.1317Da
- Atoms
- 41
- Elements
- 4
- Rings plus double bonds
- 11
The formula C18H18N2O3 describes a molecule made of 18 carbon atoms, 18 hydrogen atoms, 2 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 × 1869.66%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 185.85%1.008 × 18 = 18.144 g/mol
- N Nitrogen × 29.03%14.007 × 2 = 28.014 g/mol
- O Oxygen × 315.47%15.999 × 3 = 47.997 g/mol
Look up another formula
Compounds with the formula C18H18N2O3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 301 to 400 of 587 compounds
![1-(4-{[1-(2-Hydroxyethyl)-1H-benzimidazol-2-yl]-methoxy}phenyl)ethanone chemical structure, C18H18N2O3, CAS 891449-68-6](/s/MBWNJVAUGFUFJI-UHFFFAOYSA-N.svg)
1-(4-{[1-(2-Hydroxyethyl)-1H-benzimidazol-2-yl]-methoxy}phenyl)ethanone
CAS 891449-68-6C18H18N2O3
3-(4-Methoxyphenyl)-5-(1-phenoxypropyl)-1,2,4-oxadiazole
CAS 694448-74-3C18H18N2O3
3-(3-Ethoxy-4-methoxyphenyl)-5-(3-methylphenyl)-1,2,4-oxadiazole
CAS 836663-31-1C18H18N2O3
![5-[(3,5-Dimethylphenoxy)methyl]-3-(3-methoxyphenyl)-1,2,4-oxadiazole chemical structure, C18H18N2O3, CAS 838903-79-0](/s/GCKYTSMMDQBUHT-UHFFFAOYSA-N.svg)
5-[(3,5-Dimethylphenoxy)methyl]-3-(3-methoxyphenyl)-1,2,4-oxadiazole
CAS 838903-79-0C18H18N2O3
Benzamide, N-(2-(2,3-dihydro-1H-inden-1-yl)ethyl)-3-nitro-
CAS 78239-28-8C18H18N2O3
2-Cyano-N-(2-methoxyphenyl)-3-(4-methoxyphenyl)propanamide
CAS 505065-21-4C18H18N2O3
2-Cyano-N-(3-methoxyphenyl)-3-(4-methoxyphenyl)propanamide
CAS 483359-53-1C18H18N2O3
2-(10-Oxidoacridin-10-ium-9-yl)ethyl N-ethylcarbamate
CAS 56962-78-8C18H18N2O3
![3-[2-(4-Methoxy-benzyl)-benzoimidazol-1-yl]-propionic acid chemical structure, C18H18N2O3, CAS 886502-62-1](/s/WLUUBLSMUKYDFT-UHFFFAOYSA-N.svg)
3-[2-(4-Methoxy-benzyl)-benzoimidazol-1-yl]-propionic acid
CAS 886502-62-1C18H18N2O3
![1-(3-Methoxyphenyl)-3-[(4-methylphenyl)amino]azolidine-2,5-dione chemical structure, C18H18N2O3, CAS 1008665-16-4](/s/XOCDQGSNCMUMQV-UHFFFAOYSA-N.svg)
1-(3-Methoxyphenyl)-3-[(4-methylphenyl)amino]azolidine-2,5-dione
CAS 1008665-16-4C18H18N2O3
![2-Propenoic acid, 2-(benzoylamino)-3-[4-(dimethylamino)phenyl]-, (2Z)- chemical structure, C18H18N2O3, CAS 119888-26-5](/s/LHCIVCRKLRBKES-VBKFSLOCSA-N.svg)
2-Propenoic acid, 2-(benzoylamino)-3-[4-(dimethylamino)phenyl]-, (2Z)-
CAS 119888-26-5C18H18N2O3
(E)-N-(2-Nitrophenyl)-3-(4-propan-2-ylphenyl)prop-2-enamide
CAS 433232-53-2C18H18N2O3
(E)-N-(4-Nitrophenyl)-3-(4-propan-2-ylphenyl)prop-2-enamide
CAS 433237-14-0C18H18N2O3
![3-(3-Methoxyphenyl)-5-[1-(3-methylphenoxy)ethyl]-1,2,4-oxadiazole chemical structure, C18H18N2O3, CAS 891053-78-4](/s/PQDBJWULFAXWMK-UHFFFAOYSA-N.svg)
3-(3-Methoxyphenyl)-5-[1-(3-methylphenoxy)ethyl]-1,2,4-oxadiazole
CAS 891053-78-4C18H18N2O3
N-(1-(Cyclopropanecarbonyl)-1,2,3,4-tetrahydroquinolin-7-yl)furan-2-carboxamide
CAS 898439-27-5C18H18N2O3
![N-[1-(Cyclopropanecarbonyl)-3,4-dihydro-2H-quinolin-6-yl]furan-2-carboxamide chemical structure, C18H18N2O3, CAS 899964-21-7](/s/HMJROPYNTMGLIU-UHFFFAOYSA-N.svg)
N-[1-(Cyclopropanecarbonyl)-3,4-dihydro-2H-quinolin-6-yl]furan-2-carboxamide
CAS 899964-21-7C18H18N2O3
![4-Methoxy-N-[4-(2-oxopyrrolidin-1-yl)phenyl]benzamide chemical structure, C18H18N2O3, CAS 941992-62-7](/s/IFPYVDBGRLFHIP-UHFFFAOYSA-N.svg)
4-Methoxy-N-[4-(2-oxopyrrolidin-1-yl)phenyl]benzamide
CAS 941992-62-7C18H18N2O3
![2-Methoxy-N-[4-(2-oxopyrrolidin-1-yl)phenyl]benzamide chemical structure, C18H18N2O3, CAS 941992-70-7](/s/LYNIZMSILDMEKQ-UHFFFAOYSA-N.svg)
2-Methoxy-N-[4-(2-oxopyrrolidin-1-yl)phenyl]benzamide
CAS 941992-70-7C18H18N2O3
![Phenyl N-[3-methyl-4-(2-oxopyrrolidin-1-yl)phenyl]carbamate chemical structure, C18H18N2O3, CAS 941993-00-6](/s/SEBRJTBKOMSDEJ-UHFFFAOYSA-N.svg)
Phenyl N-[3-methyl-4-(2-oxopyrrolidin-1-yl)phenyl]carbamate
CAS 941993-00-6C18H18N2O3
![Phenyl N-[4-(2-oxopiperidin-1-yl)phenyl]carbamate chemical structure, C18H18N2O3, CAS 941918-54-3](/s/QIXXBCYBNMETMW-UHFFFAOYSA-N.svg)
Phenyl N-[4-(2-oxopiperidin-1-yl)phenyl]carbamate
CAS 941918-54-3C18H18N2O3
![11,12-Dimethoxy-5,8,9,13b-tetrahydroisoquinolino[2,1-c]quinazolin-6-one chemical structure, C18H18N2O3, CAS 56162-13-1](/s/PDOQPXQCXHZZGW-UHFFFAOYSA-N.svg)
11,12-Dimethoxy-5,8,9,13b-tetrahydroisoquinolino[2,1-c]quinazolin-6-one
CAS 56162-13-1C18H18N2O3
![1-(Furan-2-ylmethyl)-1-[(5-methylfuran-2-yl)methyl]-3-phenylurea chemical structure, C18H18N2O3, CAS 874207-19-9](/s/LTMAVOJCFPTVCA-UHFFFAOYSA-N.svg)
1-(Furan-2-ylmethyl)-1-[(5-methylfuran-2-yl)methyl]-3-phenylurea
CAS 874207-19-9C18H18N2O3
4-(2-Phenoxybutanoyl)-3,4-dihydroquinoxalin-2(1H)-one
CAS 905794-41-4C18H18N2O3
N-(1-Ethyl-2-oxoindolin-5-yl)-4-methoxybenzamide
CAS 921540-03-6C18H18N2O3
- N-[2-(4-Methoxyphenyl)ethyl]-5-methylfuro[3,2-b]pyridine-2-carboxamide941928-20-7C18H18N2O3
- N-(4-Ethyl-5-oxo-2,3,4,5-tetrahydrobenzo[f][1,4]oxazepin-7-yl)benzamide922001-73-8C18H18N2O3
- Methyl (1-benzoyl-1,2,3,4-tetrahydroquinolin-6-yl)carbamate955793-26-7C18H18N2O3
- 4-(2-(4-Ethoxyphenyl)acetyl)-3,4-dihydroquinoxalin-2(1H)-one952836-02-1C18H18N2O3
- 4-(2-(4-Methoxy-3-methylphenyl)acetyl)-3,4-dihydroquinoxalin-2(1H)-one952887-99-9C18H18N2O3
- N-(2-(Furan-2-carbonyl)-1,2,3,4-tetrahydroisoquinolin-7-yl)cyclopropanecarboxamide955741-67-0C18H18N2O3
- Ethyl [2-(4-methoxyphenyl)-1H-benzimidazol-1-yl]acetate872604-78-9C18H18N2O3
- 2-[3-(2-Oxo-1-pyrrolidinyl)phenoxy]-N-phenylacetamide1060807-29-5C18H18N2O3
- 2-(4-Methoxyphenyl)-N-(1-methyl-2-oxoindolin-5-yl)acetamide921542-71-4C18H18N2O3
- 3-(4-Methoxyphenyl)-N-(2-oxoindolin-5-yl)propanamide921814-06-4C18H18N2O3
- 2-(4-Ethoxyphenyl)-N-(2-oxoindolin-5-yl)acetamide921814-26-8C18H18N2O3
- 2-(4-Methoxyphenyl)-N-(2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)acetamide922130-88-9C18H18N2O3
- 3-Methyl-N-(11-oxo-10,11-dihydrodibenzo[b,f][1,4]oxazepin-2-yl)butanamide922082-31-3C18H18N2O3
- N-(11-Oxo-10,11-dihydrodibenzo[b,f][1,4]oxazepin-2-yl)pivalamide922108-56-3C18H18N2O3
- 3-Methyl-N-(4-methyl-5-oxo-2,3,4,5-tetrahydrobenzo[f][1,4]oxazepin-7-yl)benzamide922128-08-3C18H18N2O3
- 4-Methyl-N-(4-methyl-5-oxo-2,3,4,5-tetrahydrobenzo[f][1,4]oxazepin-7-yl)benzamide922054-53-3C18H18N2O3
- N-(1-Ethyl-2-oxo-2,3-dihydro-1H-indol-5-yl)-2-phenoxyacetamide921773-46-8C18H18N2O3
- N-(1-Methyl-2-oxo-2,3-dihydro-1H-indol-5-yl)-2-(4-methylphenoxy)acetamide921813-85-6C18H18N2O3
- N-(2-Oxo-1,2,3,4-tetrahydroquinolin-6-yl)-2-(m-tolyloxy)acetamide921914-87-6C18H18N2O3
- 2-(4-Methylphenoxy)-N-(2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)acetamide922000-38-2C18H18N2O3
- 4-(2-Amino-4-methylphenoxy)-6,7-dimethoxyquinoline666734-41-4C18H18N2O3
- 2-(6-Methoxy-2-naphthyl)-N-(5-methyl-3-isoxazolyl)propanamide1000926-67-9C18H18N2O3
- Ethyl 2-(2-furanyl)-6-methyl-4-phenyl-1,4-dihydropyrimidine-5-carboxylate1040243-96-6C18H18N2O3
- N-(1-Acetyl-2,3-dihydro-1H-indol-6-yl)-2-phenoxyacetamide1021209-77-7C18H18N2O3
- 3-Methoxy-N-(1-methyl-2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)benzamide922054-10-2C18H18N2O3
- N-(1-Methyl-2-oxo-2,3-dihydro-1H-indol-5-yl)-2-(2-methylphenoxy)acetamide921544-33-4C18H18N2O3
- N-(1-Ethyl-2-oxo-2,3-dihydro-1H-indol-5-yl)-3-methoxybenzamide921837-37-8C18H18N2O3
- N-(1-Ethyl-2-oxo-2,3-dihydro-1H-indol-5-yl)-2-methoxybenzamide921812-99-9C18H18N2O3
- 4-Methoxy-N-(1-methyl-2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)benzamide922053-63-2C18H18N2O3
- 1-(2-Methoxybenzoyl)-N-methylindoline-2-carboxamide1101191-27-8C18H18N2O3
- 3,5-Dimethyl-N-(5-oxo-2,3,4,5-tetrahydrobenzo[f][1,4]oxazepin-7-yl)benzamide922129-96-2C18H18N2O3
- N-(5-Oxo-2,3,4,5-tetrahydrobenzo[f][1,4]oxazepin-7-yl)-3-phenylpropanamide922026-83-3C18H18N2O3
- N-(5-Oxo-2,3,4,5-tetrahydrobenzo[f][1,4]oxazepin-7-yl)-2-(m-tolyl)acetamide922027-01-8C18H18N2O3
- N-((5-(Furan-2-yl)isoxazol-3-yl)methyl)-2-phenylbutanamide1105205-14-8C18H18N2O3
- 2-[[5-(Dimethylamino)-2-methoxyphenyl]methyl]isoindole-1,3-dione1212060-34-8C18H18N2O3
- 2-Cyano-3-(2-methoxyphenyl)-N-(4-methoxyphenyl)propanamide1261010-98-3C18H18N2O3
- 2-Cyano-3-(2-methoxyphenyl)-N-(3-methoxyphenyl)propanamide1260622-55-6C18H18N2O3
- 2-Cyano-N-(2-methoxyphenyl)-3-(3-methoxyphenyl)propanamide1261001-54-0C18H18N2O3
- 2-Cyano-3-(3-methoxyphenyl)-N-(4-methoxyphenyl)propanamide1260997-20-3C18H18N2O3
- 4-(3,4-Dimethoxyphenyl)-2-oxo-1,2,5,6,7,8-hexahydroquinoline-3-carbonitrile1226074-84-5C18H18N2O3
- 4-(3-BOC-Aminophenyl)-2-cyanophenol1261984-58-0C18H18N2O3
- 5-(4-BOC-Aminophenyl)-2-cyanophenol1262002-93-6C18H18N2O3
- 2-[4-(Piperidine-1-carbonyl)phenyl]pyridine-4-carboxylic acid1261900-58-6C18H18N2O3
- 3-[4-(Piperidine-1-carbonyl)phenyl]pyridine-4-carboxylic acid1262009-93-7C18H18N2O3
- 2-[4-(Piperidine-1-carbonyl)phenyl]nicotinic acid1261951-47-6C18H18N2O3
- 5-[4-(Piperidine-1-carbonyl)phenyl]pyridine-3-carboxylic acid1261951-50-1C18H18N2O3
- 6-[4-(Piperidine-1-carbonyl)phenyl]pyridine-3-carboxylic acid1261960-60-4C18H18N2O3
- 4-[4-(Piperidine-1-carbonyl)phenyl]pyridine-3-carboxylic acid1261975-19-2C18H18N2O3
- N-{[4-(Benzyloxy)phenyl](cyano)methyl}-2-methoxyacetamide1334012-15-5C18H18N2O3
- 2-Ethoxy-N-(1-oxo-1,2,3,4-tetrahydroisoquinolin-7-yl)benzamide1351616-85-7C18H18N2O3
- 2-[2-(Benzyloxy)phenoxy]-N-(cyanomethyl)-N-methylacetamide1355740-51-0C18H18N2O3
- 2-(Benzyloxy)-N-[cyano(2-methoxyphenyl)methyl]acetamide1355829-86-5C18H18N2O3
- 3-(2-Oxo-pyrrolidin-1-yl)-5-phenylamino-benzoic acid methyl ester706793-53-5C18H18N2O3
- 3-(5-Isopropoxypyridin-2-yl)-6-methoxyisoquinolin-1-ol1409950-23-7C18H18N2O3
- 3-(6-Isopropoxypyridin-3-yl)-6-methoxyisoquinolin-1-ol1409950-25-9C18H18N2O3
- (E)-3-(Furan-3-yl)-N-(3-methyl-4-(2-oxopyrrolidin-1-yl)phenyl)acrylamide1448140-06-4C18H18N2O3
- (E)-3-(Furan-3-yl)-N-(4-(2-oxopiperidin-1-yl)phenyl)acrylamide1448140-33-7C18H18N2O3
- (E)-N-(4-(2-(Cyclopropylamino)-2-oxoethyl)phenyl)-3-(furan-3-yl)acrylamide1448139-43-2C18H18N2O3
- N-(4-Cyanooxan-4-yl)-2-naphthalen-2-yloxyacetamide1385459-86-8C18H18N2O3
- N-[Cyano-(2-methylphenyl)methyl]-2,4-dimethoxybenzamide1385298-23-6C18H18N2O3
- N-[Cyano(2-methylphenyl)methyl]-2,5-dimethoxybenzamide1376380-00-5C18H18N2O3
- N-[Cyano(2-methoxyphenyl)methyl]-2-methoxy-2-phenylacetamide1797806-84-8C18H18N2O3
- N-(6-Methoxy-2,3,4,9-tetrahydro-1H-carbazol-1-yl)furan-2-carboxamide1574303-31-3C18H18N2O3
- Rkd95GE3541628898-52-1C18H18N2O3
- Indolin-1-yl(6-((tetrahydrofuran-3-yl)oxy)pyridin-3-yl)methanone2034389-36-9C18H18N2O3
- (E)-3-(Furan-2-yl)-N-(2-hydroxy-2-(1-methyl-1H-indol-5-yl)ethyl)acrylamide2035036-37-2C18H18N2O3
- N-[(2,3-Dihydro-1-benzofuran-3-yl)methyl]-4-acetamidobenzamide1788765-51-4C18H18N2O3
- (AlphaR,2R)-3,4-dihydro-5-[(4-nitrophenyl)methyl]-alpha-phenyl-2H-pyrrole-2-methanol1628836-09-8C18H18N2O3
- 3-({[2,2'-Bifuran]-5-yl}methyl)-1-(2-phenylethyl)urea2034252-89-4C18H18N2O3
- 2-(3,5-Dimethylisoxazol-4-yl)-N-(4-(furan-3-yl)benzyl)acetamide2034285-06-6C18H18N2O3
- N-(1-(Benzofuran-2-yl)propan-2-yl)-1-methyl-2-oxo-1,2-dihydropyridine-3-carboxamide2034610-27-8C18H18N2O3
- N-({[2,2'-Bifuran]-5-yl}methyl)-3-(dimethylamino)benzamide2034594-06-2C18H18N2O3
- Methyl 4-{[(5-cyclopropylpyridin-3-yl)methyl]carbamoyl}benzoate2034232-89-6C18H18N2O3
- 1-([2,3'-Bifuran]-5-ylmethyl)-3-phenethylurea2034489-30-8C18H18N2O3
- 2-(Benzo[d][1,3]dioxol-5-yl)-N-((5-cyclopropylpyridin-3-yl)methyl)acetamide2034497-39-5C18H18N2O3
- 2-(2H-1,3-Benzodioxol-5-yl)-N-[(6-cyclopropylpyridin-3-yl)methyl]acetamide2097933-32-7C18H18N2O3
Frequently asked questions
What is the molar mass of C18H18N2O3?
The molar mass of C18H18N2O3 is 310.35 g/mol, calculated from standard atomic weights for 18 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 310.1317 Da.
How many compounds have the formula C18H18N2O3?
CompoundList lists 587 compounds with the molecular formula C18H18N2O3, including 1-(4-{[1-(2-Hydroxyethyl)-1H-benzimidazol-2-yl]-methoxy}phenyl)ethanone, 3-(4-Methoxyphenyl)-5-(1-phenoxypropyl)-1,2,4-oxadiazole, 3-(3-Ethoxy-4-methoxyphenyl)-5-(3-methylphenyl)-1,2,4-oxadiazole. 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 C18H18N2O3?
C18H18N2O3 has a degree of unsaturation of 11. 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.