Molecular formula
C18H21NO2
611 compounds have this formula on CompoundList.
- Molar mass
- 283.37g/mol
- Monoisotopic mass
- 283.1572Da
- Atoms
- 42
- Elements
- 4
- Rings plus double bonds
- 9
The formula C18H21NO2 describes a molecule made of 18 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom and 2 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 × 1876.30%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 217.47%1.008 × 21 = 21.168 g/mol
- N Nitrogen × 14.94%14.007 × 1 = 14.007 g/mol
- O Oxygen × 211.29%15.999 × 2 = 31.998 g/mol
Look up another formula
Compounds with the formula C18H21NO2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 101 to 200 of 611 compounds
2-(2-Ethylphenoxy)-N-(2-phenylethyl)acetamide
CAS 449751-86-4C18H21NO2
2-(2,4-Dimethylphenoxy)-N-(1-phenylethyl)acetamide
CAS 448241-50-7C18H21NO2
(3S,4S)-Methyl 1-methyl-4-(naphthalen-2-yl)piperidine-3-carboxylate
CAS 265112-64-9C18H21NO2
![Phenol, 2-[[(4-butylphenyl)imino]methyl]-5-methoxy- chemical structure, C18H21NO2, CAS 30633-94-4](/s/DFUYRNLWIOXVQP-UHFFFAOYSA-N.svg)
Phenol, 2-[[(4-butylphenyl)imino]methyl]-5-methoxy-
CAS 30633-94-4C18H21NO2
![2-{2-[4-(Diethylamino)phenyl]ethenyl}-6-methyl-4H-pyran-4-one chemical structure, C18H21NO2, CAS 70038-33-4](/s/ZCPXXTFZJILCKF-UHFFFAOYSA-N.svg)
2-{2-[4-(Diethylamino)phenyl]ethenyl}-6-methyl-4H-pyran-4-one
CAS 70038-33-4C18H21NO2
2-(3,4-Dimethylphenoxy)-N-ethyl-N-phenylacetamide
CAS 692264-13-4C18H21NO2
Ethyl 2-(dibenzylamino)acetate
CAS 77385-90-1C18H21NO2
4T66VH9Cfl
CAS 868686-01-5C18H21NO2
![N-{2-[3-(Benzyloxy)-4-methylphenyl]ethyl}acetamide chemical structure, C18H21NO2, CAS 6345-93-3](/s/MRSHQOYGDGZZKC-UHFFFAOYSA-N.svg)
N-{2-[3-(Benzyloxy)-4-methylphenyl]ethyl}acetamide
CAS 6345-93-3C18H21NO2
![Ethyl 4-[(3-phenylpropyl)amino]benzoate chemical structure, C18H21NO2, CAS 61439-69-8](/s/ABLLSBNLIHHKNM-UHFFFAOYSA-N.svg)
Ethyl 4-[(3-phenylpropyl)amino]benzoate
CAS 61439-69-8C18H21NO2
![4-[(4-Methoxyphenyl)methylideneamino]-5-methyl-2-propan-2-ylphenol chemical structure, C18H21NO2, CAS 7251-21-0](/s/JUDOFUPCEWFQOU-UHFFFAOYSA-N.svg)
4-[(4-Methoxyphenyl)methylideneamino]-5-methyl-2-propan-2-ylphenol
CAS 7251-21-0C18H21NO2
(S)-5-(2,6-Dimethoxy-phenyl)-1,2,3,4-tetrahydro-naphthalen-2-ylamine
CAS 756818-61-8C18H21NO2
![4-[(5-Phenylpentyl)amino]benzoic acid chemical structure, C18H21NO2, CAS 61439-75-6](/s/CUCWNEGRDFOXPR-UHFFFAOYSA-N.svg)
4-[(5-Phenylpentyl)amino]benzoic acid
CAS 61439-75-6C18H21NO2
N-(2-Phenoxyethyl)-2-phenylbutanamide
CAS 1105226-93-4C18H21NO2
4-(Dibenzylamino)butanoic acid
CAS 106518-44-9C18H21NO2
![N-[(4-Methoxyphenyl)methyl]-2-phenylbutanamide chemical structure, C18H21NO2, CAS 349088-83-1](/s/YAVYSEFYLXUBLR-UHFFFAOYSA-N.svg)
N-[(4-Methoxyphenyl)methyl]-2-phenylbutanamide
CAS 349088-83-1C18H21NO2
Methyl3-(dibenzylamino)propanoate
CAS 171908-90-0C18H21NO2
![rel-(3S)-3-[(R)-(2-Methoxyphenoxy)phenylmethyl]pyrrolidine chemical structure, C18H21NO2, CAS 1204671-03-3](/s/WDFMVSDPRALOJK-CRAIPNDOSA-N.svg)
rel-(3S)-3-[(R)-(2-Methoxyphenoxy)phenylmethyl]pyrrolidine
CAS 1204671-03-3C18H21NO2
Ethanol, 2-(bis(phenylmethyl)amino)-, 1-acetate
CAS 19520-88-8C18H21NO2
4-Morpholineethanol, alpha,alpha-diphenyl-
CAS 13150-37-3C18H21NO2
Morphinan, 6,7-didehydro-4,5-epoxy-3-methoxy-17-methyl-, (5alpha)-
CAS 1034-48-6C18H21NO2
1-Benzyl-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline
CAS 3423-37-8C18H21NO2
![N-[3-(3-Methoxyphenyl)-3-phenylpropyl]acetamide chemical structure, C18H21NO2, CAS 920317-83-5](/s/OJTOLFDTLADRFL-UHFFFAOYSA-N.svg)
N-[3-(3-Methoxyphenyl)-3-phenylpropyl]acetamide
CAS 920317-83-5C18H21NO2
Naranol
CAS 22292-91-7C18H21NO2
- Benzamide, 2-methyl-N-(3-(1-methylpropoxy)phenyl)-58885-34-0C18H21NO2
- 6',6'-Dimethyl-5',6'-dihydrospiro[cyclohexane-1,4'-pyrrolo[3,2,1-ij]quinoline]-1',2'-dione896662-47-8C18H21NO2
- Methyl 3-amino-2,2-dibenzylpropanoate125469-89-8C18H21NO2
- tert-Butyl 4-cyclopropylnaphthalen-1-ylcarbamate1533519-91-3C18H21NO2
- Acetic acid, diphenyl-, 2-(dimethylamino)ethyl ester2618-50-0C18H21NO2
- 6-(Benzyloxy)-7-methoxy-1-methyl-1,2,3,4-tetrahydroisoquinoline51745-26-7C18H21NO2
- N-(2,6-Diethylphenyl)-3-methoxybenzamide200116-54-7C18H21NO2
- N-[4-(Butan-2-yl)phenyl]-2-methoxybenzamide353784-21-1C18H21NO2
- 7,7-Dimethyl-4-(2-methylphenyl)-3,4,6,8-tetrahydro-1H-quinoline-2,5-dione847466-74-4C18H21NO2
- (5alpha)-4,5-Epoxy-17-methyl-6-methylenemorphinan-3-ol3414-84-4C18H21NO2
- N-[2-(2-Benzyl-5-methoxyphenyl)ethyl]acetamide920317-76-6C18H21NO2
- N-[2-(3-Methoxyphenyl)-3-phenylpropyl]acetamide920317-71-1C18H21NO2
- 7-[2-(Dimethylamino)ethoxy]-3,4-dihydrophenanthren-1(2H)-one62324-73-6C18H21NO2
- N-(4-Butylphenyl)-4-methoxybenzamide35684-24-3C18H21NO2
- 2-(2,3-Dimethylphenyl)-5,6-dimethyl-3a,4,7,7a-tetrahydro-1H-isoindole-1,3(2H)-dione314279-13-5C18H21NO2
- (1,1'-Biphenyl)-4-ol, 4'-methoxy-3-(1-pyrrolidinylmethyl)-106609-37-4C18H21NO2
- 6,7-Dimethoxy-2-methyl-4-phenyl-1,2,3,4-tetrahydroisoquinoline128942-65-4C18H21NO2
- 3-(Benzyloxy)-N-(sec-butyl)benzamide908551-06-4C18H21NO2
- N-[2-(2-Methylphenoxy)ethyl]-3-phenylpropanamide294653-07-9C18H21NO2
- 4-Ethoxy-N-(4-isopropylphenyl)benzamide328280-43-9C18H21NO2
- N-(2,6-Diethylphenyl)-2-methoxybenzamide424816-89-7C18H21NO2
- 3-(1,3-Dihydro-2H-isoindol-2-yl)-3-(4-methoxyphenyl)-1-propanol860644-63-9C18H21NO2
- N-(4-Ethoxyphenyl)-2-phenylbutanamide2769-40-6C18H21NO2
- 2-Phenoxy-N-(1-phenylethyl)butanamide86455-24-5C18H21NO2
- N-[2-(2,6-Dimethylphenoxy)ethyl]-3-methylbenzamide839695-06-6C18H21NO2
- Benzilamide, N-tert-butyl-55274-14-1C18H21NO2
- {[4-(Benzyloxy)-3-methoxyphenyl]methyl}(prop-2-en-1-yl)amine880805-52-7C18H21NO2
- 4'-(Aminomethyl)-biphenyl-2-carboxylic acid 1,1-dimethylethyl ester133690-73-0C18H21NO2
- (2-(3,4-Dimethoxyphenyl)-2,3-dihydro-1H-inden-2-yl)methanamine1017387-75-5C18H21NO2
- (2R,4S)-5-([1,1'-Biphenyl]-4-yl)-4-aMino-2-methylpentanoic acid1039307-95-3C18H21NO2
- 2-[(2,3-Dihydro-1H-inden-5-ylamino)methyl]-6-ethoxyphenol1019554-61-0C18H21NO2
- 5-Methyl-2-(4-pentyloxybenzoyl)pyridine1187166-55-7C18H21NO2
- 4-Methyl-2-(4-pentyloxybenzoyl)pyridine1187165-46-3C18H21NO2
- 2-(Morpholin-4-yl)-1,2-diphenylethan-1-ol4176-70-9C18H21NO2
- 2-(2-Methoxyphenyl)-N-(4-propan-2-ylphenyl)acetamide349139-07-7C18H21NO2
- N-[2-(3,5-Dimethylphenoxy)ethyl]-2-methylbenzamide4150-27-0C18H21NO2
- N-[2-(3,5-Dimethylphenoxy)ethyl]-4-methylbenzamide6549-15-1C18H21NO2
- 4-(4-Methylphenoxy)-N-(4-methylphenyl)butanamide432528-79-5C18H21NO2
- 1-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-4-phenylbutan-1-amine212714-10-8C18H21NO2
- N-[2-(Benzyloxy)-3-methoxybenzyl]cyclopropanamine880813-13-8C18H21NO2
- 4-(Benzyloxy)-N-(sec-butyl)benzamide910431-76-4C18H21NO2
- 4-{[(1-Methyl-3-phenylpropyl)amino]methyl}benzoic acid932252-63-6C18H21NO2
- 6-Methyl-2-(4-pentyloxybenzoyl)pyridine1187170-50-8C18H21NO2
- 3-Methyl-2-(4-pentyloxybenzoyl)pyridine1187167-21-0C18H21NO2
- 2-Methyl-4-(4-pentyloxybenzoyl)pyridine1187165-21-4C18H21NO2
- 4-Pentenamide, 3-(hydroxymethyl)-N-[(1S)-1-(1-naphthalenyl)ethyl]-, (3S)-214976-90-6C18H21NO2
- p-Cymene-2-carboxamide, N-benzyl-3-hydroxy-3893-89-8C18H21NO2
- 2H-1,3-Benzoxazine, 3,4-dihydro-8-ethoxy-3-(2-phenylethyl)-55311-24-5C18H21NO2
- 4-Butoxy-N-(4-methylphenyl)benzamide304445-90-7C18H21NO2
- 2-(2-Methylphenoxy)-N-(2-propan-2-ylphenyl)acetamide6081-14-7C18H21NO2
- 1-(3-Methoxyphenyl)-2,6,6-trimethyl-1,5,6,7-tetrahydro-4H-indol-4-one344276-05-7C18H21NO2
- 2-(1,3-Benzodioxol-5-yl)-N-(4-ethylbenzyl)ethanamine423733-26-0C18H21NO2
- 2-Phenoxy-N-(4-phenylbutyl)acetamide353467-55-7C18H21NO2
- 2-Phenoxy-N-(4-propan-2-ylphenyl)propanamide349579-78-8C18H21NO2
- N-(2-Ethyl-6-methylphenyl)-2-phenoxypropanamide349579-53-9C18H21NO2
- 3-(4-Methoxyphenyl)-N-(1-phenylethyl)propanamide543686-73-3C18H21NO2
- 1,3-Butanedione, 1-(2-cyclohexyl-1H-indol-3-yl)-62367-72-0C18H21NO2
- N-(4-Methylbenzyl)-2-(3-methylphenoxy)propanamide515177-38-5C18H21NO2
- 2-(4-Phenylphenoxy)-N-propan-2-ylpropanamide880585-66-0C18H21NO2
- N-Ethyl-4-isopropoxy-N-phenylbenzamide880591-13-9C18H21NO2
- N-Benzyl-N-methyl-4-propan-2-yloxybenzamide880591-21-9C18H21NO2
- 4-sec-Butoxy-N-methyl-N-phenylbenzamide909222-83-9C18H21NO2
- N-(3-sec-Butoxyphenyl)-2-phenylacetamide925027-17-4C18H21NO2
- 2-[1-Benzyl-4-(hydroxymethyl)tetrahydro-1H-pyrrol-3-yl]benzenol1033463-29-4C18H21NO2
- 7-(((4-Methylbenzyl)oxy)methyl)-2,3,4,5-tetrahydrobenzo[f][1,4]oxazepine1160245-46-4C18H21NO2
- Phenyl [(4-tert-butylphenyl)methyl]carbamate795276-94-7C18H21NO2
- 4'-(Aminomethyl)-biphenyl-4-carboxylic acid tert-butyl ester528894-33-9C18H21NO2
- 4H-Indol-4-one, 1,5,6,7-tetrahydro-1-isopropyl-2-(p-methoxyphenyl)-76410-26-9C18H21NO2
- Ethanone, 1-[4-(diethylamino)phenyl]-2-hydroxy-2-phenyl-63450-47-5C18H21NO2
- Morpholine, 4-(p-phenoxymethylbenzyl)-19733-85-8C18H21NO2
- 7-Methoxy-2-methyl-8-phenylmethoxy-3,4-dihydro-1H-isoquinoline36646-87-4C18H21NO2
- 4-(4-Methoxy-3-methylphenyl)-N-phenylbutanamide300727-53-1C18H21NO2
- 2-(3-Methylphenoxy)-N-[2-(propan-2-yl)phenyl]acetamide303989-28-8C18H21NO2
- 4-Ethoxy-N-(2-ethyl-6-methylphenyl)benzamide333348-59-7C18H21NO2
- N-(4-Ethylphenyl)-3-propan-2-yloxybenzamide431919-43-6C18H21NO2
- 2-(2,5-Dimethylphenoxy)-N-ethyl-N-phenylacetamide514823-62-2C18H21NO2
Frequently asked questions
What is the molar mass of C18H21NO2?
The molar mass of C18H21NO2 is 283.37 g/mol, calculated from standard atomic weights for 18 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom and 2 oxygen atoms. The monoisotopic mass is 283.1572 Da.
How many compounds have the formula C18H21NO2?
CompoundList lists 611 compounds with the molecular formula C18H21NO2, including 2-(2-Ethylphenoxy)-N-(2-phenylethyl)acetamide, 2-(2,4-Dimethylphenoxy)-N-(1-phenylethyl)acetamide, (3S,4S)-Methyl 1-methyl-4-(naphthalen-2-yl)piperidine-3-carboxylate. 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 C18H21NO2?
C18H21NO2 has a degree of unsaturation of 9. 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.