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 401 to 500 of 587 compounds
1-(2,2-Di(furan-2-yl)ethyl)-3-(o-tolyl)urea
CAS 2188279-39-0C18H18N2O3
Methyl 4-(((6-cyclopropylpyridin-3-yl)methyl)carbamoyl)benzoate
CAS 2319637-13-1C18H18N2O3
N'-(4-Hydroxy-3-methoxybenzylidene)-2-phenylcyclopropanecarbohydrazide
CAS 385795-93-7C18H18N2O3
7-(Benzyloxy)-5-isopropoxyquinazolin-4(3H)-one
CAS 643086-74-2C18H18N2O3
![(2E)-2-{[(4-Methoxyphenyl)amino]methylidene}-3-oxo-N-phenylbutanamide chemical structure, C18H18N2O3](/s/AGOXDGPTERACSM-LCAORJSFSA-N.svg)
(2E)-2-{[(4-Methoxyphenyl)amino]methylidene}-3-oxo-N-phenylbutanamide
C18H18N2O3
2-(4-Isopropoxyphenyl)-7-methoxyquinazolin-4-ol
CAS 1409950-42-0C18H18N2O3
1-(1-Cyanocyclopropyl)-6-(tetrahydro-2H-pyran-4-yl)indolizine-2-carboxylic Acid
CAS 2758661-12-8C18H18N2O3
(1,3-Benzoxazol-2-yl)(3-methylphenyl)methyl N-ethylcarbamate
CAS 104029-83-6C18H18N2O3
(5-Methyl-1,3-benzoxazol-2-yl)(2-methylphenyl)methyl N-methylcarbamate
CAS 104029-94-9C18H18N2O3
![Ethyl 3-oxo-1,11,12,12a-tetrahydrobenzo[f]imidazo[1,5-a]quinoline-2(3H)-carboxylate chemical structure, C18H18N2O3, CAS 18007-15-3](/s/FIPVWUODQUBAAW-UHFFFAOYSA-N.svg)
Ethyl 3-oxo-1,11,12,12a-tetrahydrobenzo[f]imidazo[1,5-a]quinoline-2(3H)-carboxylate
CAS 18007-15-3C18H18N2O3
![9b-Methyl-4-(2-nitrophenyl)-3,3a,4,5-tetrahydro-2H-furo[3,2-c]quinoline chemical structure, C18H18N2O3, CAS 52197-48-5](/s/AKGCKUFSDDVGSX-UHFFFAOYSA-N.svg)
9b-Methyl-4-(2-nitrophenyl)-3,3a,4,5-tetrahydro-2H-furo[3,2-c]quinoline
CAS 52197-48-5C18H18N2O3
(2-Hydroxy-3-methoxy-5-methylphenyl)(4-phenyl-4,5-dihydro-1H-pyrazol-3-yl)methanone
CAS 7598-98-3C18H18N2O3
N-(3-Cyanophenyl)-3,4-diethoxybenzamide
CAS 695155-63-6C18H18N2O3
4-(4-Benzoylpiperazin-1-yl)benzoic acid
CAS 94038-27-4C18H18N2O3
![5-[1-(4-Methoxyphenoxy)ethyl]-3-(3-methylphenyl)-1,2,4-oxadiazole chemical structure, C18H18N2O3, CAS 702648-22-4](/s/GQPXCRKNUMVBCR-UHFFFAOYSA-N.svg)
5-[1-(4-Methoxyphenoxy)ethyl]-3-(3-methylphenyl)-1,2,4-oxadiazole
CAS 702648-22-4C18H18N2O3
N-(2,3-Dimethylphenyl)-2-(3-oxo-1,4-benzoxazin-4-yl)acetamide
CAS 842116-35-2C18H18N2O3
4,4'-Dipropionylazoxybenzene
CAS 53033-84-4C18H18N2O3
4-(4-Propan-2-yloxybenzoyl)-1,3-dihydroquinoxalin-2-one
CAS 879032-60-7C18H18N2O3
Tryptophan, 7-(phenylmethoxy)-
CAS 211681-84-4C18H18N2O3
![N-[4-Methoxy-3-(2-oxopyrrolidin-1-yl)phenyl]benzamide chemical structure, C18H18N2O3, CAS 923081-21-4](/s/HQWSIDWHNYWHLF-UHFFFAOYSA-N.svg)
N-[4-Methoxy-3-(2-oxopyrrolidin-1-yl)phenyl]benzamide
CAS 923081-21-4C18H18N2O3
Acetophenone, 2-(morpholinoimino)-4'-phenoxy-
CAS 25561-44-8C18H18N2O3
1-(Ethylamino)-4-((2-hydroxyethyl)amino)anthracene-9,10-dione
CAS 61734-59-6C18H18N2O3
2H-1,4-Benzoxazin-3(4H)-one, 4-methyl-6-(1-((phenylmethoxy)imino)ethyl)-
CAS 91119-54-9C18H18N2O3
![3-(4-Methoxyphenyl)-5-[4-(propan-2-yloxy)phenyl]-1,2,4-oxadiazole chemical structure, C18H18N2O3, CAS 892687-15-9](/s/IYGRCAYTSXIWQK-UHFFFAOYSA-N.svg)
3-(4-Methoxyphenyl)-5-[4-(propan-2-yloxy)phenyl]-1,2,4-oxadiazole
CAS 892687-15-9C18H18N2O3
- N-(2-Methoxyphenethyl)-5-methylfuro[3,2-b]pyridine-2-carboxamide942005-19-8C18H18N2O3
- N-(1-Methyl-2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)-2-phenoxyacetamide922130-32-3C18H18N2O3
- 4-(3,4-Diethoxyphenyl)-1(2H)-phthalazinone234780-29-1C18H18N2O3
- N-(2-Carbamoylphenyl)-4-methoxy-3-(prop-2-en-1-yl)benzamide931828-37-4C18H18N2O3
- (3S,4S,5R)-1,5-Dimethyl-3-(4-nitrophenyl)-4-phenylpyrrolidin-2-one823785-99-5C18H18N2O3
- 6,7-Dimethoxy-4-(3-hydroxy-4-methylanilino)quinoline205447-50-3C18H18N2O3
- 3-(3-Methoxyphenyl)-5-[4-(propan-2-yloxy)phenyl]-1,2,4-oxadiazole915891-08-6C18H18N2O3
- 2-Methoxy-N-(1-methyl-2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)benzamide921913-92-0C18H18N2O3
- 4-Ethoxy-N-(2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)benzamide922054-78-2C18H18N2O3
- N-(2,4-Dimethoxyphenyl)-2-(1H-indol-1-yl)acetamide1144454-72-7C18H18N2O3
- N-(3,5-Dimethoxyphenyl)-2-(1H-indol-1-yl)acetamide1144434-90-1C18H18N2O3
- N-(3,4-Dimethoxyphenyl)-2-(1H-indol-1-yl)acetamide1144499-61-5C18H18N2O3
- 2-Methoxy-N-(5-oxo-1-phenylpyrrolidin-3-yl)benzamide896360-77-3C18H18N2O3
- 1-(2-(4-Methoxyphenyl)acetyl)indoline-2-carboxamide1100757-54-7C18H18N2O3
- 5-(3-Hydroxy-4-methoxyphenyl)-5-methyl-2-phenyl-4,5-dihydropyridazin-3(2H)-one1092388-61-8C18H18N2O3
- N-(3,4-Dimethoxyphenyl)-1-methyl-1H-indole-4-carboxamide1190274-10-2C18H18N2O3
- N-(2,4-Dimethoxyphenyl)-1-methyl-1H-indole-4-carboxamide1190260-13-9C18H18N2O3
- N-(3,4-Dimethoxyphenyl)-1-methyl-1H-indole-5-carboxamide1219574-37-4C18H18N2O3
- N-(3,4-Dimethoxyphenyl)-1-methyl-1H-indole-6-carboxamide1219570-64-5C18H18N2O3
- N-(2,4-Dimethoxyphenyl)-1-methyl-1H-indole-5-carboxamide1219571-57-9C18H18N2O3
- 2-Ethoxy-N-((5-methylisoxazol-3-yl)methyl)-1-naphthamide1257552-57-0C18H18N2O3
- 6-Methoxy-3-methyl-N-(2-(pyridin-4-yl)ethyl)benzofuran-2-carboxamide1235119-29-5C18H18N2O3
- 2-Cyano-N,3-bis(2-methoxyphenyl)propanamide1260946-86-8C18H18N2O3
- 2-Cyano-3-(2,5-dimethoxyphenyl)-N-phenylpropanamide1260991-07-8C18H18N2O3
- 2-(4-Methoxy-1H-indol-1-yl)-N-(2-methoxyphenyl)acetamide1282141-94-9C18H18N2O3
- 5-(3-BOC-Aminophenyl)-3-cyanophenol1261942-97-5C18H18N2O3
- 4-(4-BOC-Aminophenyl)-2-cyanophenol1261943-01-4C18H18N2O3
- 5-(4-BOC-Aminophenyl)-3-cyanophenol1261950-07-5C18H18N2O3
- 3-[4-(Piperidine-1-carbonyl)phenyl]picolinic acid1261968-72-2C18H18N2O3
- 4-[4-(Piperidine-1-carbonyl)phenyl]picolinic acid1262004-63-6C18H18N2O3
- 5-[4-(Piperidine-1-carbonyl)phenyl]picolinic acid1261960-61-5C18H18N2O3
- 2-{[3-(3-Ethoxyphenyl)acryloyl]amino}benzamide188543-96-6C18H18N2O3
- 6-Isopropoxy-N-(5-methylpyridin-2-yl)benzofuran-4-carboxamide955884-30-7C18H18N2O3
- 11-Methoxy-3a,3b,4,5,6,6a,7,11c-octahydro-1H-cyclopenta[a]pyrrolo[3,4-c]carbazole-1,3(2H)-dione1269629-15-3C18H18N2O3
- 2-(4-tert-Butyl-phenyl)-7-nitro-2,3-dihydro-isoindol-1-one847695-67-4C18H18N2O3
- Methyl 2-(2-(2-methylpyridin-3-yl)-1-oxo-1,2,3,4-tetrahydroisoquinolin-6-yl)acetate1422169-94-5C18H18N2O3
- N-(Cyanomethyl)-2-(2-ethoxyphenoxy)-N-methylbenzamide1384639-91-1C18H18N2O3
- 3-Cyano-N-[2-methoxy-2-(3-methoxyphenyl)ethyl]benzamide1797879-34-5C18H18N2O3
- 2-(4-Methoxyphenyl)-N-(2-oxo-1-phenylazetidin-3-yl)acetamide1796888-90-8C18H18N2O3
- 3-Cyano-N-[2-methoxy-2-(2-methoxyphenyl)ethyl]benzamide1798625-53-2C18H18N2O3
- N-(3-Acetylphenyl)-2-(cyclopropylmethoxy)isonicotinamide2034393-45-6C18H18N2O3
- (Z)-2-Cyano-N-[2-(4-methoxyphenyl)ethyl]-3-(3-methylfuran-2-yl)prop-2-enamide1424630-00-1C18H18N2O3
- 4-(8-Oxo-1,5,6,8-tetrahydro-2H-1,5-methanopyrido[1,2-a][1,5]diazocin-3(4H)-yl)benzoic acid1707370-20-4C18H18N2O3
- N-(3-(Benzofuran-2-yl)propyl)-5-cyclopropylisoxazole-3-carboxamide2034558-53-5C18H18N2O3
- 1-Benzyl-3-[2,2-bis(furan-2-yl)ethyl]urea2210140-53-5C18H18N2O3
- (2E)-2-[2-(3,5-Dimethylphenyl)hydrazin-1-ylidene]-3-(4-methoxyphenyl)-3-oxopropanal338400-32-1C18H18N2O3
- 4-Methyl-6-[(quinolin-3-yl)carbamoyl]cyclohex-3-ene-1-carboxylic acid2305497-76-9C18H18N2O3
- 3-Benzyl-1-(2-methoxyethyl)-1,2,3,4-tetrahydroquinazoline-2,4-dione2548999-18-2C18H18N2O3
- (2E)-N-Methyl-4-[(4-phenoxyphenyl)formamido]but-2-enamide2549133-39-1C18H18N2O3
- Cyano(3-phenoxyphenyl)methyl N-propylcarbamate98991-97-0C18H18N2O3
- Cyano(3-phenoxyphenyl)methyl N-propan-2-ylcarbamate98991-98-1C18H18N2O3
- (1,3-Benzoxazol-2-yl)(2,6-dimethylphenyl)methyl N-methylcarbamate104029-67-6C18H18N2O3
- (1,3-Benzoxazol-2-yl)(2,4-dimethylphenyl)methyl N-methylcarbamate104029-71-2C18H18N2O3
- (6-Methyl-1,3-benzoxazol-2-yl)(2-methylphenyl)methyl N-methylcarbamate104029-99-4C18H18N2O3
- (1,3-Benzoxazol-2-yl-(2-ethylphenyl)methyl) N-methylcarbamate104030-02-6C18H18N2O3
- (1,3-Benzoxazol-2-yl-(2,5-dimethylphenyl)methyl) N-methylcarbamate104167-14-8C18H18N2O3
- 3-(3,4-Dimethoxyphenyl)-5-(2,4-dimethylphenyl)-1,2,4-oxadiazole701241-17-0C18H18N2O3
- Benzamide, N-[1-[[(2-hydroxyethyl)amino]carbonyl]-2-phenylethenyl]-C18H18N2O3
- 2-(Furan-2-yl)-N-(3-methoxypropyl)quinoline-4-carboxamide445286-75-9C18H18N2O3
- 5-Methyl-5-[4-[(4-methylphenyl)methoxy]phenyl]imidazolidine-2,4-dione374108-62-0C18H18N2O3
- 5-[(2,5-Dimethylphenoxy)methyl]-3-(3-methoxyphenyl)-1,2,4-oxadiazole892686-20-3C18H18N2O3
- 5-[(2,4-Dimethylphenoxy)methyl]-3-(3-methoxyphenyl)-1,2,4-oxadiazole892685-98-2C18H18N2O3
- 3-(3-Methoxyphenyl)-5-(3-phenoxypropyl)-1,2,4-oxadiazole896658-82-5C18H18N2O3
- (4-Methyl-3-oxo-1-phenylpyrazolidin-4-yl)methyl benzoate79869-11-7C18H18N2O3
- 4-{4-[(1,3,4-Trimethyl-1H-pyrazol-5-yl)oxy]phenoxy}phenol862564-44-1C18H18N2O3
- (E)-3-(Methoxyamino)-2-[(E)-methoxyiminomethyl]-1-(4-phenylphenyl)prop-2-en-1-one320416-84-0C18H18N2O3
- N-(3-Methoxyphenethyl)-5-methylfuro[3,2-b]pyridine-2-carboxamide942005-23-4C18H18N2O3
- N-(5-Oxo-1-phenylpyrrolidin-3-yl)-2-phenoxyacetamide905674-74-0C18H18N2O3
- 2-{2-[Benzyl(methyl)amino]ethoxy}-1H-isoindole-1,3(2H)-dione89541-39-9C18H18N2O3
- 4-[(6,7-Dimethoxy-4-quinolinyl)oxy]-N-methylbenzenamine190728-29-1C18H18N2O3
- 2-Benzofurancarboxamide, 3-amino-N-[4-(1-methylethoxy)phenyl]-1082500-31-9C18H18N2O3
- N-(3-Hydroxyphenyl)-1-methyl-5-oxo-2-phenylpyrrolidine-3-carboxamide1081147-00-3C18H18N2O3
- N-(2-Hydroxyphenyl)-1-methyl-5-oxo-2-phenylpyrrolidine-3-carboxamide1081113-45-2C18H18N2O3
- 1-Benzyl-N-(3-hydroxyphenyl)-5-oxopyrrolidine-3-carboxamide1081123-60-5C18H18N2O3
- 1-Benzyl-N-(4-hydroxyphenyl)-5-oxopyrrolidine-3-carboxamide1081117-90-9C18H18N2O3
- 4-(Benzyloxy)tryptophan93879-79-9C18H18N2O3
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-(2,2-Di(furan-2-yl)ethyl)-3-(o-tolyl)urea, Methyl 4-(((6-cyclopropylpyridin-3-yl)methyl)carbamoyl)benzoate, N'-(4-Hydroxy-3-methoxybenzylidene)-2-phenylcyclopropanecarbohydrazide. 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.