Molecular formula
C18H21NO3
637 compounds have this formula on CompoundList.
- Molar mass
- 299.37g/mol
- Monoisotopic mass
- 305.1898Da
- Atoms
- 43
- Elements
- 4
- Rings plus double bonds
- 9
The formula C18H21NO3 describes a molecule made of 18 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom 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 × 1872.22%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 217.07%1.008 × 21 = 21.168 g/mol
- N Nitrogen × 14.68%14.007 × 1 = 14.007 g/mol
- O Oxygen × 316.03%15.999 × 3 = 47.997 g/mol
Look up another formula
Compounds with the formula C18H21NO3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 501 to 600 of 637 compounds
N,N-Dibenzyl-2,2-dimethoxyacetamide
CAS 62373-74-4C18H21NO3
N-(1,2-Diphenylethyl)-2,2-dimethoxyacetamide
CAS 62373-72-2C18H21NO3
Benzyl N-(2-benzyl-3-hydroxypropyl)carbamate
CAS 1823310-87-7C18H21NO3
1-(2,3,4-Trimethoxybenzyl)indoline
CAS 1137406-50-8C18H21NO3
![3-Ethoxy-4-methoxy-N-[(4-methylphenyl)methyl]benzamide chemical structure, C18H21NO3, CAS 1009918-63-1](/s/NAVHURYIIHFCHV-UHFFFAOYSA-N.svg)
3-Ethoxy-4-methoxy-N-[(4-methylphenyl)methyl]benzamide
CAS 1009918-63-1C18H21NO3
Benzyl N-(1-hydroxy-2-phenylbutan-2-yl)carbamate
CAS 1032763-98-6C18H21NO3
![tert-Butyl N-[(1S)-1-(naphthalen-1-yl)-3-oxopropyl]carbamate chemical structure, C18H21NO3, CAS 1234564-42-1](/s/IBVOWAQKMQBDAO-INIZCTEOSA-N.svg)
tert-Butyl N-[(1S)-1-(naphthalen-1-yl)-3-oxopropyl]carbamate
CAS 1234564-42-1C18H21NO3
(1S)-2-Anilino-1-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)ethanol
CAS 1287234-00-7C18H21NO3
![(4Z)-1-Cyclohexyl-4-[(4-methoxyphenyl)methylidene]pyrrolidine-2,3-dione chemical structure, C18H21NO3, CAS 4805-30-5](/s/VBJPWTTZPNDRSG-KAMYIIQDSA-N.svg)
(4Z)-1-Cyclohexyl-4-[(4-methoxyphenyl)methylidene]pyrrolidine-2,3-dione
CAS 4805-30-5C18H21NO3
![4-Hydroxy-6-methyl-3-[phenyl(piperidin-1-yl)methyl]-2H-pyran-2-one chemical structure, C18H21NO3, CAS 106148-29-2](/s/LVQCFDAZLGVFTN-UHFFFAOYSA-N.svg)
4-Hydroxy-6-methyl-3-[phenyl(piperidin-1-yl)methyl]-2H-pyran-2-one
CAS 106148-29-2C18H21NO3
Methyl 5,5,7,7-tetramethyl-8-oxo-6,9-dihydrocarbazole-3-carboxylate
CAS 1424995-07-2C18H21NO3
![1-({[4-(Ethenyloxy)phenyl]methyl}amino)-3-phenoxypropan-2-ol chemical structure, C18H21NO3, CAS 94794-21-5](/s/AINWHONQXDDLPH-UHFFFAOYSA-N.svg)
1-({[4-(Ethenyloxy)phenyl]methyl}amino)-3-phenoxypropan-2-ol
CAS 94794-21-5C18H21NO3
![1-[3-(3-Amino-2-hydroxypropoxy)phenyl]-3-phenylpropan-1-one chemical structure, C18H21NO3, CAS 114460-36-5](/s/VJXGLZDHLHTOFV-UHFFFAOYSA-N.svg)
1-[3-(3-Amino-2-hydroxypropoxy)phenyl]-3-phenylpropan-1-one
CAS 114460-36-5C18H21NO3
![N-[2-(Naphthalen-1-yl)propanoyl]-L-valine chemical structure, C18H21NO3, CAS 184482-57-3](/s/KUUSMLDSAIRQSX-INSVYWFGSA-N.svg)
N-[2-(Naphthalen-1-yl)propanoyl]-L-valine
CAS 184482-57-3C18H21NO3
![N-[2-(1,5-Dihydroxypentan-2-yl)phenyl]benzamide chemical structure, C18H21NO3, CAS 649558-97-4](/s/AWOKWECNGRVLIW-UHFFFAOYSA-N.svg)
N-[2-(1,5-Dihydroxypentan-2-yl)phenyl]benzamide
CAS 649558-97-4C18H21NO3
(2-Hydroxy-3-propylnaphthalen-1-yl)(morpholin-4-yl)methanone
CAS 63145-63-1C18H21NO3
N-(2,6-Diethylphenyl)-4,6-dimethyl-2-oxo-2H-pyran-5-carboxamide
CAS 61444-68-6C18H21NO3
![2-[(6-Phenylpyridin-2-yl)oxy]propyl 2-methylpropanoate chemical structure, C18H21NO3, CAS 88347-50-6](/s/NWPBHKFNOZKGPB-UHFFFAOYSA-N.svg)
2-[(6-Phenylpyridin-2-yl)oxy]propyl 2-methylpropanoate
CAS 88347-50-6C18H21NO3
![1-Nitro-3-[(4-pentylphenoxy)methyl]benzene chemical structure, C18H21NO3, CAS 87740-02-1](/s/QBRQQVBIPQZXIB-UHFFFAOYSA-N.svg)
1-Nitro-3-[(4-pentylphenoxy)methyl]benzene
CAS 87740-02-1C18H21NO3
(4S,5R)-4-Butyl-5-(6-methoxynaphthalen-2-yl)oxazolidin-2-one
CAS 1411976-04-9C18H21NO3
![Benzyl N-[1-hydroxy-3-(3-methylphenyl)propan-2-yl]carbamate chemical structure, C18H21NO3, CAS 2680885-60-1](/s/FAYRVBMQFWWUAZ-UHFFFAOYSA-N.svg)
Benzyl N-[1-hydroxy-3-(3-methylphenyl)propan-2-yl]carbamate
CAS 2680885-60-1C18H21NO3
![Benzyl N-[1-hydroxy-1-(4-methylphenyl)propan-2-yl]carbamate chemical structure, C18H21NO3, CAS 2147525-68-4](/s/BZLVBEKYYLDORL-UHFFFAOYSA-N.svg)
Benzyl N-[1-hydroxy-1-(4-methylphenyl)propan-2-yl]carbamate
CAS 2147525-68-4C18H21NO3
Benzyl N-benzyl-N-(2-hydroxypropyl)carbamate
CAS 2680729-03-5C18H21NO3
Benzyl N-(1-hydroxy-1-phenylbutan-2-yl)carbamate
CAS 2680881-98-3C18H21NO3
- N-(3-Ethoxypropyl)-4-phenoxybenzamide1623462-45-2C18H21NO3
- tert-Butyl (R)-((3-hydroxyphenyl)(phenyl)methyl)carbamate1416070-91-1C18H21NO3
- Benzyl N-{[4-(2-hydroxypropan-2-yl)phenyl]methyl}carbamate1790012-71-3C18H21NO3
- Benzyl N-[(2S)-1-hydroxy-4-phenylbutan-2-yl]carbamate611209-87-1C18H21NO3
- Benzyl N-[(2R)-1-hydroxy-4-phenylbutan-2-yl]carbamate1403991-16-1C18H21NO3
- Benzyl N-butyl-N-(4-hydroxyphenyl)carbamate1881290-24-9C18H21NO3
- Benzyl N-(4-hydroxy-2-phenylbutyl)carbamate2089285-28-7C18H21NO3
- Benzyl (4-(2-hydroxyphenyl)butyl)carbamate905293-36-9C18H21NO3
- tert-Butyl N-(2-methoxy-5-phenylphenyl)carbamate2418015-37-7C18H21NO3
- Ethyl 6-(4-ethoxy-3,5-dimethylphenyl)-2-pyridinecarboxylate2598243-26-4C18H21NO3
- Benzyl N-(2-hydroxyethyl)-N-[(4-methylphenyl)methyl]carbamate2680800-20-6C18H21NO3
- Methyl (11Z)-11-ethylidene-9,10-dihydro-2-methoxy-7-methyl-5,9-methanocycloocta[b]pyridine-5(8H)-carboxylate1185739-46-1C18H21NO3
- tert-Butyl 7-ethyl-3-(3-hydroxyprop-1-yn-1-yl)-1H-indole-1-carboxylate2138259-87-5C18H21NO3
- tert-Butyl N-[(1R)-1-(naphthalen-2-yl)-3-oxopropyl]carbamate2137083-09-9C18H21NO3
- 2-{8-Hydroxyspiro[4.5]decan-6-yl}-2,3-dihydro-1H-isoindole-1,3-dione2138570-37-1C18H21NO3
- tert-Butyl N-[(1R)-1-(naphthalen-1-yl)-3-oxopropyl]carbamate2137092-15-8C18H21NO3
- tert-Butyl N-[2-(naphthalen-1-yl)-1-oxopropan-2-yl]carbamate2228502-64-3C18H21NO3
- tert-Butyl N-[2-(naphthalen-2-yl)-1-oxopropan-2-yl]carbamate2229235-69-0C18H21NO3
- tert-Butyl N-methyl-N-[1-(naphthalen-1-yl)-2-oxoethyl]carbamate2228153-79-3C18H21NO3
- tert-Butyl 2-amino-4-(benzyloxy)benzoate2803852-25-5C18H21NO3
- tert-Butyl N-[1-(4-methylnaphthalen-1-yl)-2-oxoethyl]carbamate2228561-97-3C18H21NO3
- tert-Butyl N-{3-[hydroxy(phenyl)methyl]phenyl}carbamate2163677-37-8C18H21NO3
- tert-Butyl N-[(4-hydroxyphenyl)methyl]-N-phenylcarbamate2413877-88-8C18H21NO3
- tert-Butyl 3-hydroxy-1H,2H,3H,4H-benzo[h]quinoline-1-carboxylate2413900-65-7C18H21NO3
- tert-Butyl N-[2-(hydroxymethyl)phenyl]-N-phenylcarbamate2413878-77-8C18H21NO3
- tert-Butyl N-(5-benzyl-2-hydroxyphenyl)carbamate2413896-77-0C18H21NO3
- tert-Butyl N-{2-[(4-hydroxyphenyl)methyl]phenyl}carbamate2413898-59-4C18H21NO3
- tert-Butyl N-methyl-N-[1-(naphthalen-2-yl)-2-oxoethyl]carbamate2228984-38-9C18H21NO3
- tert-Butyl 3-amino-4-(benzyloxy)benzoate2580191-37-1C18H21NO3
- tert-Butyl 2-amino-3-(benzyloxy)benzoate2580188-84-5C18H21NO3
- tert-Butyl 2-[4-(phenylamino)phenoxy]acetate2639416-25-2C18H21NO3
- tert-Butyl 2-[(2-methoxyphenyl)amino]benzoate2639430-41-2C18H21NO3
- tert-Butyl 2-[(3-methoxyphenyl)amino]benzoate2639450-01-2C18H21NO3
- tert-Butyl 4-[(2-methoxyphenyl)amino]benzoate2639450-20-5C18H21NO3
- Benzyl N-benzyl-N-[(2R)-1-hydroxypropan-2-yl]carbamate2679828-84-1C18H21NO3
- Benzyl N-[3-hydroxy-1-(2-methylphenyl)propyl]carbamate1823290-26-1C18H21NO3
- Benzyl N-[3-hydroxy-1-(3-methylphenyl)propyl]carbamate1823480-51-8C18H21NO3
- Benzyl N-[3-hydroxy-1-(4-methylphenyl)propyl]carbamate1823249-72-4C18H21NO3
- Benzyl N-[5-(2-hydroxypropan-2-yl)-2-methylphenyl]carbamate2384777-48-2C18H21NO3
- Benzyl N-[2-(4-hydroxyphenyl)-2-methylpropyl]carbamate2680685-93-0C18H21NO3
- Benzyl N-[1-(3,4-dimethylphenyl)-2-hydroxyethyl]carbamate2680768-77-6C18H21NO3
- Benzyl N-[2-(4-hydroxy-3,5-dimethylphenyl)ethyl]carbamate2680686-02-4C18H21NO3
- Benzyl N-{[3-(2-hydroxypropan-2-yl)phenyl]methyl}carbamate2680702-34-3C18H21NO3
- rac-Benzyl N-[(2R,3S)-3-hydroxy-3-phenylbutan-2-yl]carbamate2679836-76-9C18H21NO3
- Benzyl N-(1-hydroxy-2-methyl-1-phenylpropan-2-yl)carbamate2680795-20-2C18H21NO3
- Benzyl N-[2-hydroxy-1-(2-methylphenyl)ethyl]-N-methylcarbamate2680768-91-4C18H21NO3
- Benzyl N-(3-hydroxy-2-methyl-2-phenylpropyl)carbamate2680867-10-9C18H21NO3
- Benzyl N-[2-(3,5-dimethylphenyl)-2-hydroxyethyl]carbamate2148499-38-9C18H21NO3
- Benzyl N-(2-hydroxyethyl)-N-[(3-methylphenyl)methyl]carbamate2680686-14-8C18H21NO3
- Benzyl N-[1-hydroxy-3-(4-methylphenyl)propan-2-yl]carbamate2680742-40-7C18H21NO3
- Benzyl N-ethyl-N-(2-hydroxy-1-phenylethyl)carbamate2680885-64-5C18H21NO3
- Benzyl N-[1-(4-ethylphenyl)-2-hydroxyethyl]carbamate2680800-30-8C18H21NO3
- Benzyl N-(3-hydroxy-1-phenylpropyl)-N-methylcarbamate2680844-78-2C18H21NO3
- Benzyl N-(1-hydroxybutan-2-yl)-N-phenylcarbamate2680795-23-5C18H21NO3
- Benzyl N-[(2-hydroxyphenyl)methyl]-N-propylcarbamate2680742-74-7C18H21NO3
- Benzyl 8-oxo-4-azatricyclo[5.2.2.0,2,6]undecane-4-carboxylate2680898-48-8C18H21NO3
- Benzyl N-[1-(3,5-dimethylphenyl)-2-hydroxyethyl]carbamate2680870-05-5C18H21NO3
- Benzyl N-(2-hydroxy-2-methyl-1-phenylpropyl)carbamate2680768-79-8C18H21NO3
- tert-Butyl N-(naphthalen-1-yl)-N-[(oxiran-2-yl)methyl]carbamate2680823-32-7C18H21NO3
- Benzyl N-(4-tert-butyl-2-hydroxyphenyl)carbamate2680802-20-2C18H21NO3
- Benzyl N-(2-hydroxy-3-phenylbutyl)carbamate2680683-88-7C18H21NO3
- Benzyl N-[3-(butan-2-yl)-4-hydroxyphenyl]carbamate2680680-60-6C18H21NO3
- Benzyl N-(3-tert-butyl-4-hydroxyphenyl)carbamate2680890-82-6C18H21NO3
- Benzyl N-{[4-(hydroxymethyl)-2,6-dimethylphenyl]methyl}carbamate2680815-69-2C18H21NO3
- Benzyl N-(2-hydroxy-2-phenylpropyl)-N-methylcarbamate2680876-28-0C18H21NO3
- Benzyl N-[4-(4-hydroxybutyl)phenyl]carbamate2680803-57-8C18H21NO3
- Benzyl N-[2-(4-ethylphenyl)-2-hydroxyethyl]carbamate2142980-25-2C18H21NO3
- Benzyl N-(2-hydroxy-3-phenylpropyl)-N-methylcarbamate2680723-12-8C18H21NO3
- Benzyl N-(1-hydroxy-2-phenylpropan-2-yl)-N-methylcarbamate2680762-96-1C18H21NO3
- Benzyl N-(3-tert-butyl-2-hydroxyphenyl)carbamate2680756-39-0C18H21NO3
- Benzyl N-[1-hydroxy-3-(2-methylphenyl)propan-2-yl]carbamate2680680-62-8C18H21NO3
- Benzyl N-(5-tert-butyl-2-hydroxyphenyl)carbamate2680676-98-4C18H21NO3
- Benzyl N-[2-(1-hydroxy-2-methylpropyl)phenyl]carbamate2680714-09-2C18H21NO3
- Benzyl N-(2-hydroxyethyl)-N-(2-phenylethyl)carbamate2680835-07-6C18H21NO3
- Benzyl N-[4-hydroxy-2-methyl-5-(propan-2-yl)phenyl]carbamate2680876-34-8C18H21NO3
- Benzyl N-(1-hydroxy-3-phenylbutan-2-yl)carbamate2680803-62-5C18H21NO3
Frequently asked questions
What is the molar mass of C18H21NO3?
The molar mass of C18H21NO3 is 299.37 g/mol, calculated from standard atomic weights for 18 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom and 3 oxygen atoms. The monoisotopic mass is 305.1898 Da.
How many compounds have the formula C18H21NO3?
CompoundList lists 637 compounds with the molecular formula C18H21NO3, including N,N-Dibenzyl-2,2-dimethoxyacetamide, N-(1,2-Diphenylethyl)-2,2-dimethoxyacetamide, Benzyl N-(2-benzyl-3-hydroxypropyl)carbamate. 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 C18H21NO3?
C18H21NO3 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.