Molecular formula
C20H21NO3
368 compounds have this formula on CompoundList.
- Molar mass
- 323.39g/mol
- Monoisotopic mass
- 323.1521Da
- Atoms
- 45
- Elements
- 4
- Rings plus double bonds
- 11
The formula C20H21NO3 describes a molecule made of 20 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 × 2074.28%12.011 × 20 = 240.220 g/mol
- H Hydrogen × 216.55%1.008 × 21 = 21.168 g/mol
- N Nitrogen × 14.33%14.007 × 1 = 14.007 g/mol
- O Oxygen × 314.84%15.999 × 3 = 47.997 g/mol
Look up another formula
Compounds with the formula C20H21NO3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 201 to 300 of 368 compounds
![N-(2-Hydroxycyclohexyl)-N-methylnaphtho[2,1-b]furan-2-carboxamide chemical structure, C20H21NO3, CAS 1377952-15-2](/s/KFBUKNQVZPRJGU-UHFFFAOYSA-N.svg)
N-(2-Hydroxycyclohexyl)-N-methylnaphtho[2,1-b]furan-2-carboxamide
CAS 1377952-15-2C20H21NO3
2-(2,3-Dihydro-1-benzofuran-6-yl)-1-(2-phenylmorpholin-4-yl)ethanone
CAS 1435900-90-5C20H21NO3
N-(3-Cyclopropyl-3-hydroxypropyl)-9H-xanthene-9-carboxamide
CAS 1396807-38-7C20H21NO3
N-(3-(2,5-Dimethylfuran-3-yl)-3-hydroxypropyl)-1-naphthamide
CAS 1421445-91-1C20H21NO3
![(3-(Benzo[d][1,3]dioxol-5-yl)pyrrolidin-1-yl)(2,5-dimethylphenyl)methanone chemical structure, C20H21NO3, CAS 2034341-07-4](/s/DKLNXOKYNIEQID-UHFFFAOYSA-N.svg)
(3-(Benzo[d][1,3]dioxol-5-yl)pyrrolidin-1-yl)(2,5-dimethylphenyl)methanone
CAS 2034341-07-4C20H21NO3
![1-(3-(Benzo[d][1,3]dioxol-5-yl)pyrrolidin-1-yl)-2-(m-tolyl)ethanone chemical structure, C20H21NO3, CAS 1790153-25-1](/s/WJJJUZOVOSKATE-UHFFFAOYSA-N.svg)
1-(3-(Benzo[d][1,3]dioxol-5-yl)pyrrolidin-1-yl)-2-(m-tolyl)ethanone
CAS 1790153-25-1C20H21NO3
![7-{[Benzyl(methyl)amino]methyl}-6-hydroxy-2-(propan-2-ylidene)-1-benzofuran-3(2H)-one chemical structure, C20H21NO3, CAS 1205986-33-9](/s/ANHNFBNRSCBCFH-UHFFFAOYSA-N.svg)
7-{[Benzyl(methyl)amino]methyl}-6-hydroxy-2-(propan-2-ylidene)-1-benzofuran-3(2H)-one
CAS 1205986-33-9C20H21NO3
N-(3-(Benzofuran-2-yl)propyl)-2-(benzyloxy)acetamide
CAS 2034457-74-2C20H21NO3
N-(1-(Benzofuran-2-yl)propan-2-yl)-2-phenoxypropanamide
CAS 2034610-44-9C20H21NO3
![Benzyl N-[4-(4-oxocyclohexyl)phenyl]carbamate chemical structure, C20H21NO3, CAS 2216710-53-9](/s/WEOJHXLOXVUCQO-UHFFFAOYSA-N.svg)
Benzyl N-[4-(4-oxocyclohexyl)phenyl]carbamate
CAS 2216710-53-9C20H21NO3
![(9H-Fluoren-9-yl)methyl N-[(1S,3R)-3-hydroxycyclopentyl]carbamate chemical structure, C20H21NO3, CAS 2763887-68-7](/s/WWUNBJCULRKJSM-UONOGXRCSA-N.svg)
(9H-Fluoren-9-yl)methyl N-[(1S,3R)-3-hydroxycyclopentyl]carbamate
CAS 2763887-68-7C20H21NO3
![(9H-Fluoren-9-yl)methyl N-[(1S,2R)-2-hydroxycyclopentyl]carbamate chemical structure, C20H21NO3, CAS 2763885-02-3](/s/ZUULVTSCEDNNDZ-RBUKOAKNSA-N.svg)
(9H-Fluoren-9-yl)methyl N-[(1S,2R)-2-hydroxycyclopentyl]carbamate
CAS 2763885-02-3C20H21NO3
![(9H-Fluoren-9-yl)methyl N-{[(1S,2R)-2-hydroxycyclobutyl]methyl}carbamate chemical structure, C20H21NO3, CAS 2763929-02-6](/s/KNTTWNXUHNQGRS-ORAYPTAESA-N.svg)
(9H-Fluoren-9-yl)methyl N-{[(1S,2R)-2-hydroxycyclobutyl]methyl}carbamate
CAS 2763929-02-6C20H21NO3
Butanoic acid, 3,3-dimethyl-, cyano(3-phenoxyphenyl)methyl ester
CAS 85889-59-4C20H21NO3
![7,8-Dimethoxy-4-phenyl-1,2,3a,4,5,9b-hexahydro-3H-benzo[e]isoindol-3-one chemical structure, C20H21NO3, CAS 35202-58-5](/s/SAJGXCJTYSNGJN-UHFFFAOYSA-N.svg)
7,8-Dimethoxy-4-phenyl-1,2,3a,4,5,9b-hexahydro-3H-benzo[e]isoindol-3-one
CAS 35202-58-5C20H21NO3
N-(2-Ethoxyphenyl)-3,5,6-trimethyl-1-benzofuran-2-carboxamide
CAS 622349-24-0C20H21NO3
![6-{[Benzyl(methyl)amino]methyl}-5-hydroxy-4,7-dimethyl-2H-chromen-2-one chemical structure, C20H21NO3, CAS 859666-69-6](/s/SLQVYIQAPFSGEO-UHFFFAOYSA-N.svg)
6-{[Benzyl(methyl)amino]methyl}-5-hydroxy-4,7-dimethyl-2H-chromen-2-one
CAS 859666-69-6C20H21NO3
![3-Hydroxy-4-[(3-methylpiperidino)methyl]-6H-benzo[c]chromen-6-one chemical structure, C20H21NO3, CAS 841206-15-3](/s/KGRWBLYBFJAAAY-UHFFFAOYSA-N.svg)
3-Hydroxy-4-[(3-methylpiperidino)methyl]-6H-benzo[c]chromen-6-one
CAS 841206-15-3C20H21NO3
(E)-4-(4-Ethoxyphenyl)-N-(4-ethylphenyl)-4-oxo-2-butenamide
CAS 331461-83-7C20H21NO3
![Benzamide, 3-methoxy-2-methyl-N-[1-(4-methylbenzoyl)cyclopropyl]- chemical structure, C20H21NO3, CAS 644979-35-1](/s/ASNMYGGIZGVMBA-UHFFFAOYSA-N.svg)
Benzamide, 3-methoxy-2-methyl-N-[1-(4-methylbenzoyl)cyclopropyl]-
CAS 644979-35-1C20H21NO3
Carbamic acid, (3-methyl-1-oxobutyl)-, 9H-fluoren-9-ylmethyl ester
CAS 652135-32-5C20H21NO3
![1(2H)-Isoquinolinone, 4-[2-(3,4-dimethoxyphenyl)ethyl]-2-methyl- chemical structure, C20H21NO3, CAS 61380-83-4](/s/KPUCCIYRBQYRNH-UHFFFAOYSA-N.svg)
1(2H)-Isoquinolinone, 4-[2-(3,4-dimethoxyphenyl)ethyl]-2-methyl-
CAS 61380-83-4C20H21NO3
2-Ethoxy-7,8-dimethoxy-5-phenyl-1H-3-benzazepine
CAS 78533-16-1C20H21NO3
![N-(4-Methoxyphenyl)-2-[5-(propan-2-yl)-1-benzofuran-3-yl]acetamide chemical structure, C20H21NO3, CAS 879930-81-1](/s/ITSFLUNZSGOQBG-UHFFFAOYSA-N.svg)
N-(4-Methoxyphenyl)-2-[5-(propan-2-yl)-1-benzofuran-3-yl]acetamide
CAS 879930-81-1C20H21NO3
- 2-(4,6-Dimethyl-1-benzofuran-3-yl)-N-(2-ethoxyphenyl)acetamide880785-04-6C20H21NO3
- 3-(1,3-Benzodioxol-5-yl)-N-(1,2,3,4-tetrahydronaphthalen-1-yl)propanamide1309110-36-8C20H21NO3
- N-(2-Cyclopropyl-2-hydroxypropyl)-9H-xanthene-9-carboxamide1286720-07-7C20H21NO3
- 2,3,3a,8a-Tetrahydro-4,5-dimethoxy-2-(phenylmethyl)indeno[1,2-c]pyrrol-8(1H)-one874991-13-6C20H21NO3
- N-(5-Hydroxy-3-phenylpentyl)benzofuran-2-carboxamide1795413-83-0C20H21NO3
- 2-Ethoxy-N-(1-(furan-3-yl)propan-2-yl)-1-naphthamide1790197-33-9C20H21NO3
- N-(2-(Benzofuran-2-yl)-2-hydroxypropyl)-2-(m-tolyl)acetamide2034599-91-0C20H21NO3
- N-(2-Methoxy-2-phenylbutyl)benzofuran-2-carboxamide1706014-70-1C20H21NO3
- N-Benzyl-N-[2-hydroxy-2-(3-methoxyphenyl)ethyl]but-2-ynamide1808402-79-0C20H21NO3
- N-(1-(Benzofuran-2-yl)propan-2-yl)-2-(o-tolyloxy)acetamide2034210-32-5C20H21NO3
- N-(1-(Benzofuran-2-yl)propan-2-yl)-2-ethoxybenzamide2034558-64-8C20H21NO3
- (2E)-3-(2H-1,3-Benzodioxol-5-yl)-1-{3-cyclopropylidene-8-azabicyclo[3.2.1]octan-8-yl}prop-2-en-1-one2210222-46-9C20H21NO3
- N-[(2,3-Dihydro-1-benzofuran-3-yl)methyl]-5-oxo-5-phenylpentanamide2097898-66-1C20H21NO3
- (9H-Fluoren-9-yl)methyl N-[(1R,2R)-2-hydroxycyclopentyl]carbamate1932026-29-3C20H21NO3
- N-[2,2-Bis(furan-2-yl)ethyl]-2-phenylbutanamide2309598-38-5C20H21NO3
- rac-(9H-Fluoren-9-yl)methyl (3R,4S)-3-hydroxy-4-methylpyrrolidine-1-carboxylate2290933-39-8C20H21NO3
- 6-{[Benzyl(methyl)amino]methyl}-7-hydroxy-4,8-dimethyl-2H-chromen-2-one859663-40-4C20H21NO3
- (E)-N-[(3,4-Dimethoxy-7-bicyclo[4.2.0]octa-1,3,5-trienyl)methyl]-3-phenylprop-2-enamide35202-56-3C20H21NO3
- 6-Formyl-5,8-dimethyl-9H-carbazol-3-yl pivalate194163-27-4C20H21NO3
- Benzyl 1-benzyl-3-oxopiperidine-4-carboxylate351038-51-2C20H21NO3
- (1R,2S,4R,5S,6R)-3-Benzyl-5-phenylmethoxy-8,9-dioxa-3-azatricyclo[4.2.1.02,4]nonane475102-21-7C20H21NO3
- Methyl 3-cyclohexyl-2-(furan-3-yl)-1H-indole-6-carboxylate494799-20-1C20H21NO3
- Carbamic acid, [1-(4-acetylphenyl)-3-butenyl]-, phenylmethyl ester852288-72-3C20H21NO3
- Benzamide, N-(benzoyloxy)-N-cyclohexyl-64934-62-9C20H21NO3
- 1-[Benzoyl(phenyl)amino]cyclohexane-1-carboxylic acid87967-39-3C20H21NO3
- {2-[(4-Acetyl-3-hydroxy-2-propylphenoxy)methyl]phenyl}acetonitrile95928-63-5C20H21NO3
- 4-{(E)-[(4-Butoxyphenyl)imino]methyl}phenyl prop-2-enoate40038-41-3C20H21NO3
- 2-(sec-Butyl)-1-oxo-3-phenyl-1,2,3,4-tetrahydroisoquinoline-4-carboxylic acid1284858-35-0C20H21NO3
- 1-Propanone, 1-(3,4-dimethoxyphenyl)-3-(1-methyl-1H-indol-3-yl)-1260678-48-5C20H21NO3
- 5-Methoxy-1-(phenylmethyl)-1H-indole-3-propanoic acid methyl ester163735-08-8C20H21NO3
- (S)-Benzyl (4-methyl-3-oxo-1-phenylpent-4-en-2-yl)carbamate960374-25-8C20H21NO3
- (9H-Fluoren-9-yl)methyl N-cyclopropyl-N-(2-hydroxyethyl)carbamate1342068-42-1C20H21NO3
- (9H-Fluoren-9-yl)methyl N-(2-cyclopropyl-2-hydroxyethyl)carbamate1341723-13-4C20H21NO3
- (9H-Fluoren-9-yl)methyl 3-ethyl-3-hydroxyazetidine-1-carboxylate1495139-98-4C20H21NO3
- (6S)-6-[4-(Benzyloxy)phenyl]-4-(prop-2-en-1-yl)morpholin-3-one920799-35-5C20H21NO3
- (6R)-6-[4-(Benzyloxy)phenyl]-4-(prop-2-en-1-yl)morpholin-3-one920802-95-5C20H21NO3
- 6-Benzyloxy-1-iso-propyl-1H-indole-3-carboxylic acid methyl ester890130-19-5C20H21NO3
- 3-Methoxy-2-methyl-N-[1-(2-methylbenzoyl)cyclopropyl]benzamide644980-06-3C20H21NO3
- 3-Methoxy-2-methyl-N-[1-(3-methylbenzoyl)cyclopropyl]benzamide644979-26-0C20H21NO3
- 1'-Benzyl-3H-spiro[isobenzofuran-1,4'-piperidine]-3-carboxylic acid1363405-37-1C20H21NO3
- (1-Ethylidene-3,4-dihydro-6,7-dimethoxy-2(1H)-isoquinolinyl)phenylmethanone56038-44-9C20H21NO3
- Methyl 2-(3-{3-[(pyrrolidin-1-yl)carbonyl]phenyl}phenyl)acetate1820614-94-5C20H21NO3
- 1H-Indole-1-carboxylic acid,5-(2-formylphenyl)-2,3-dihydro-,1,1-dimethylethyl ester321435-96-5C20H21NO3
- (9H-Fluoren-9-yl)methyl (cyclobutylmethyl)hydroxycarbamate198411-67-5C20H21NO3
- 6-(Chroman-6-yl)-5-(hydroxymethyl)-7-methyl-3,4-dihydroquinolin-2(1H)-one1431740-26-9C20H21NO3
- Methanone, [(2R)-2-(2-oxiranylmethoxy)-3-phenyl-2-pyrrolidinyl]phenyl-1312716-31-6C20H21NO3
- N-[2-(3,4-Dimethoxyphenyl)-1-phenylethyl]but-2-ynamide2094656-56-9C20H21NO3
- Methyl 1-(9H-xanthen-9-yl)-4-piperidinecarboxylate5943-97-5C20H21NO3
- tert-Butyl (3-((4-ethynylphenoxy)methyl)phenyl)carbamate2801955-24-6C20H21NO3
- tert-Butyl [4-(1-benzofuran-2-yl)-3-methylphenyl]carbamate654056-83-4C20H21NO3
- 3-Acetyl-1-benzyl-7-methoxy-2-methyl-2,3-dihydroquinolin-4(1H)-one907999-05-7C20H21NO3
- Methyl 2,3-dihydro-1-methyl-2-oxo-3-(phenylmethyl)-1H-indole-3-propanoate3496-13-7C20H21NO3
- Phenyl(3,3,7-trimethyl-2-oxo-2,3-dihydro-1H-indol-1-yl)methyl acetate19501-91-8C20H21NO3
- Ethyl (1-benzyl-5-methoxy-1H-indol-2-yl)acetate17591-07-0C20H21NO3
- 1H-Indole-1-carboxylic acid,5-(2-methoxyphenyl)-,1,1-dimethylethyl ester777061-26-4C20H21NO3
- tert-Butyl 2-(4-methoxyphenyl)-1H-indole-1-carboxylate193810-70-7C20H21NO3
- 2-Isobutyl-1-oxo-3-phenyl-1,2,3,4-tetrahydroisoquinoline-4-carboxylic acid1284374-81-7C20H21NO3
- 2-Methyl-1-[(phenylmethoxy)methyl]-1H-indole-3-carboxylic acid ethyl ester122946-62-7C20H21NO3
- Benzyl 2-(2-oxo-2-phenylethyl)pyrrolidine-1-carboxylate174875-59-3C20H21NO3
- I+/--4,5-dibenzoyl-2-cyano-D-deoxyribrate226232-74-2C20H21NO3
- Ethyl 7-(3,5-dimethylphenyl)-5-methoxy-1H-indole-2-carboxylate919119-76-9C20H21NO3
- 1H-Indole-1-carboxylic acid,5-(3-methoxyphenyl)-,1,1-dimethylethyl ester908297-76-7C20H21NO3
- tert-Butyl 3-benzyl-2-oxoindoline-1-carboxylate862907-10-6C20H21NO3
- rac-cis-[3-Benzoyloxycyclohexyl]benzamide1346599-52-7C20H21NO3
- (4S)-5,5-Dimethyl-4-phenyl-3-(3-phenylpropanoyl)-1,3-oxazolidin-2-one168297-96-9C20H21NO3
- 3-{[(2-Oxocyclohexyl)(phenyl)methyl]amino}benzoic acid21854-84-2C20H21NO3
- Benzyl 2-benzamido-3-methylpent-2-enoate63186-87-8C20H21NO3
- 4-Pentylphenyl 3-cyano-4-methoxybenzoate62435-28-3C20H21NO3
- Cyano(3-phenoxyphenyl)methyl 2,3-dimethylbutanoate62391-69-9C20H21NO3
- Butyl 3-(3-formyl-9H-carbazol-9-yl)propanoate88107-80-6C20H21NO3
- 1-[2-(4-Methoxy-9H-xanthen-9-yl)ethyl]pyrrolidin-2-one820210-90-0C20H21NO3
- Ethyl 7-(benzyloxy)-3-ethyl-1H-indole-5-carboxylate918446-45-4C20H21NO3
- (9H-Fluoren-9-yl)methyl N-(2-oxopentan-3-yl)carbamate2770534-32-0C20H21NO3
- (9H-Fluoren-9-yl)methyl 4-hydroxy-2-methylpyrrolidine-1-carboxylate1866197-72-9C20H21NO3
- (9H-Fluoren-9-yl)methyl (3S)-3-(hydroxymethyl)pyrrolidine-1-carboxylate2382145-53-9C20H21NO3
- (9H-Fluoren-9-yl)methyl (3R)-3-(hydroxymethyl)pyrrolidine-1-carboxylate2763885-04-5C20H21NO3
Frequently asked questions
What is the molar mass of C20H21NO3?
The molar mass of C20H21NO3 is 323.39 g/mol, calculated from standard atomic weights for 20 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom and 3 oxygen atoms. The monoisotopic mass is 323.1521 Da.
How many compounds have the formula C20H21NO3?
CompoundList lists 368 compounds with the molecular formula C20H21NO3, including N-(2-Hydroxycyclohexyl)-N-methylnaphtho[2,1-b]furan-2-carboxamide, 2-(2,3-Dihydro-1-benzofuran-6-yl)-1-(2-phenylmorpholin-4-yl)ethanone, N-(3-Cyclopropyl-3-hydroxypropyl)-9H-xanthene-9-carboxamide. 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 C20H21NO3?
C20H21NO3 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.