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 301 to 368 of 368 compounds
trans-3-Morpholinomethylflavanone
CAS 57531-31-4C20H21NO3
(9H-Fluoren-9-yl)methyl 3-hydroxy-3-methylpyrrolidine-1-carboxylate
CAS 1691681-09-0C20H21NO3
Benzyl 3-benzoylpiperidine-1-carboxylate
CAS 1328037-07-5C20H21NO3
![(9H-Fluoren-9-yl)methyl N-{[1-(hydroxymethyl)cyclopropyl]methyl}carbamate chemical structure, C20H21NO3, CAS 1546764-23-1](/s/AGXOIYALFSKDBH-UHFFFAOYSA-N.svg)
(9H-Fluoren-9-yl)methyl N-{[1-(hydroxymethyl)cyclopropyl]methyl}carbamate
CAS 1546764-23-1C20H21NO3
(9H-Fluoren-9-yl)methyl N-(2-hydroxyethyl)-N-(prop-2-en-1-yl)carbamate
CAS 1598218-61-1C20H21NO3
![(9H-Fluoren-9-yl)methyl N-[1-(hydroxymethyl)cyclobutyl]carbamate chemical structure, C20H21NO3, CAS 1598504-43-8](/s/NRLFULSSEISZRD-UHFFFAOYSA-N.svg)
(9H-Fluoren-9-yl)methyl N-[1-(hydroxymethyl)cyclobutyl]carbamate
CAS 1598504-43-8C20H21NO3
![(9H-Fluoren-9-yl)methyl N-[(1-hydroxycyclobutyl)methyl]carbamate chemical structure, C20H21NO3, CAS 1596824-78-0](/s/MJGFESKVVNYDQE-UHFFFAOYSA-N.svg)
(9H-Fluoren-9-yl)methyl N-[(1-hydroxycyclobutyl)methyl]carbamate
CAS 1596824-78-0C20H21NO3
![9H-Fluoren-9-ylmethyl N-[(2S)-1-hydroxypent-4-EN-2-yl]carbamate chemical structure, C20H21NO3, CAS 396069-25-3](/s/PAVNLWOWVOYRCC-AWEZNQCLSA-N.svg)
9H-Fluoren-9-ylmethyl N-[(2S)-1-hydroxypent-4-EN-2-yl]carbamate
CAS 396069-25-3C20H21NO3
(9H-Fluoren-9-yl)methyl N-(1-hydroxypent-4-en-2-yl)carbamate
CAS 1935012-09-1C20H21NO3
(9H-Fluoren-9-yl)methyl 3-hydroxy-4-methylpyrrolidine-1-carboxylate
CAS 1854257-23-0C20H21NO3
(9H-Fluoren-9-yl)methyl N-(4-oxopentyl)carbamate
CAS 2273964-35-3C20H21NO3
![(9H-Fluoren-9-yl)methyl N-[3-(ethenyloxy)propyl]carbamate chemical structure, C20H21NO3, CAS 2770534-33-1](/s/AUMANDQPLYOJFT-UHFFFAOYSA-N.svg)
(9H-Fluoren-9-yl)methyl N-[3-(ethenyloxy)propyl]carbamate
CAS 2770534-33-1C20H21NO3
![2-Methoxy-10-(4-methoxybenzyl)-5,7,8,9-tetrahydro-6H-5,9-epiminobenzo[7]annulen-6-one chemical structure, C20H21NO3, CAS 2662341-23-1](/s/GVXCDUOYZSOOMB-UHFFFAOYSA-N.svg)
2-Methoxy-10-(4-methoxybenzyl)-5,7,8,9-tetrahydro-6H-5,9-epiminobenzo[7]annulen-6-one
CAS 2662341-23-1C20H21NO3
![tert-Butyl N-[1-(9H-fluoren-9-yl)-2-oxoethyl]carbamate chemical structure, C20H21NO3, CAS 2228926-55-2](/s/DIXKJQHWNRPQTP-UHFFFAOYSA-N.svg)
tert-Butyl N-[1-(9H-fluoren-9-yl)-2-oxoethyl]carbamate
CAS 2228926-55-2C20H21NO3
![(9H-Fluoren-9-yl)methyl 3-[(1R)-1-hydroxyethyl]azetidine-1-carboxylate chemical structure, C20H21NO3, CAS 2136869-04-8](/s/FYTMBCDPNIXIIB-CYBMUJFWSA-N.svg)
(9H-Fluoren-9-yl)methyl 3-[(1R)-1-hydroxyethyl]azetidine-1-carboxylate
CAS 2136869-04-8C20H21NO3
Benzyl N-(2-cyclopentanecarbonylphenyl)carbamate
CAS 2680841-47-6C20H21NO3
![Benzyl 1-[hydroxy(phenyl)methyl]-2-azabicyclo[2.1.1]hexane-2-carboxylate chemical structure, C20H21NO3, CAS 2680769-63-3](/s/XZQTZSMNMSBQPW-UHFFFAOYSA-N.svg)
Benzyl 1-[hydroxy(phenyl)methyl]-2-azabicyclo[2.1.1]hexane-2-carboxylate
CAS 2680769-63-3C20H21NO3
![Benzyl N-[2-(2-cyclobutylacetyl)phenyl]carbamate chemical structure, C20H21NO3, CAS 2680692-04-8](/s/BUVPEDHNUVTZCE-UHFFFAOYSA-N.svg)
Benzyl N-[2-(2-cyclobutylacetyl)phenyl]carbamate
CAS 2680692-04-8C20H21NO3
![(9H-Fluoren-9-yl)methyl 3-[(1S)-1-hydroxyethyl]azetidine-1-carboxylate chemical structure, C20H21NO3, CAS 2271898-84-9](/s/FYTMBCDPNIXIIB-ZDUSSCGKSA-N.svg)
(9H-Fluoren-9-yl)methyl 3-[(1S)-1-hydroxyethyl]azetidine-1-carboxylate
CAS 2271898-84-9C20H21NO3
(9H-Fluoren-9-yl)methyl 3-(1-hydroxyethyl)azetidine-1-carboxylate
CAS 2157112-49-5C20H21NO3
Benzyl 7-acetyl-2,3,4,5-tetrahydro-1H-3-benzazepine-3-carboxylate
CAS 2680725-59-9C20H21NO3
rac-(9H-Fluoren-9-yl)methyl (2R,3S)-3-hydroxy-2-methylpyrrolidine-1-carboxylate
CAS 2764019-77-2C20H21NO3
![(9H-Fluoren-9-yl)methyl N-[1-(1-hydroxyethyl)cyclopropyl]carbamate chemical structure, C20H21NO3, CAS 2763915-02-0](/s/LHALFXLKQLGFGA-UHFFFAOYSA-N.svg)
(9H-Fluoren-9-yl)methyl N-[1-(1-hydroxyethyl)cyclopropyl]carbamate
CAS 2763915-02-0C20H21NO3
![(9H-Fluoren-9-yl)methyl N-[1-(hydroxymethyl)cyclopropyl]-N-methylcarbamate chemical structure, C20H21NO3, CAS 2763931-03-7](/s/ZAPDJFPLFONUKK-UHFFFAOYSA-N.svg)
(9H-Fluoren-9-yl)methyl N-[1-(hydroxymethyl)cyclopropyl]-N-methylcarbamate
CAS 2763931-03-7C20H21NO3
- rac-(9H-Fluoren-9-yl)methyl N-[(1R,2R)-2-hydroxycyclobutyl]-N-methylcarbamate2763932-03-0C20H21NO3
- rac-(9H-Fluoren-9-yl)methyl N-[(1R,3R)-3-hydroxycyclopentyl]carbamate2763947-38-0C20H21NO3
- (9H-Fluoren-9-yl)methyl N-[(1S)-1-(1-hydroxycyclopropyl)ethyl]carbamate2763888-02-2C20H21NO3
- (9H-Fluoren-9-yl)methyl 2-(hydroxymethyl)-4-methylazetidine-1-carboxylate2764003-25-8C20H21NO3
- rac-(9H-Fluoren-9-yl)methyl N-[(1R,2S)-2-(hydroxymethyl)cyclobutyl]carbamate2763955-69-5C20H21NO3
- (9H-Fluoren-9-yl)methyl N-(1-cyclopropyl-2-hydroxyethyl)carbamate2763999-60-4C20H21NO3
- (9H-Fluoren-9-yl)methyl N-[(1-hydroxycyclopropyl)methyl]-N-methylcarbamate2764000-37-3C20H21NO3
- (9H-Fluoren-9-yl)methyl N-[(2R)-1-hydroxypent-4-en-2-yl]carbamate2763885-66-9C20H21NO3
- rac-(9H-Fluoren-9-yl)methyl (3R,4R)-3-hydroxy-4-methylpyrrolidine-1-carboxylate2763955-13-9C20H21NO3
- (9H-Fluoren-9-yl)methyl N-[(1R,2S)-2-hydroxycyclopentyl]carbamate2763884-99-5C20H21NO3
- rac-(9H-Fluoren-9-yl)methyl N-[(1R,2R)-2-(1-hydroxyethyl)cyclopropyl]carbamate2763900-65-6C20H21NO3
- (9H-Fluoren-9-yl)methyl 2-(1-hydroxyethyl)azetidine-1-carboxylate2764021-34-1C20H21NO3
- (9H-Fluoren-9-yl)methyl 2-(hydroxymethyl)-2-methylazetidine-1-carboxylate2763927-97-3C20H21NO3
- (9H-Fluoren-9-yl)methyl N-[2-(1-hydroxycyclopropyl)ethyl]carbamate2763994-00-7C20H21NO3
- (9H-Fluoren-9-yl)methyl N-[(1S,2S)-2-hydroxycyclopentyl]carbamate2763891-27-4C20H21NO3
- rac-(9H-Fluoren-9-yl)methyl N-{[(1R,2R)-2-hydroxycyclobutyl]methyl}carbamate2764006-88-2C20H21NO3
- (9H-Fluoren-9-yl)methyl N-[(1r,3s)-3-hydroxy-3-methylcyclobutyl]carbamate2763888-50-0C20H21NO3
- (9H-Fluoren-9-yl)methyl (2S,4S)-4-hydroxy-2-methylpyrrolidine-1-carboxylate2763891-19-4C20H21NO3
- rac-(9H-Fluoren-9-yl)methyl N-{[(1R,2R)-2-(hydroxymethyl)cyclopropyl]methyl}carbamate2763956-16-5C20H21NO3
- (9H-Fluoren-9-yl)methyl 3-(hydroxymethyl)-3-methylazetidine-1-carboxylate2764006-54-2C20H21NO3
- (9H-Fluoren-9-yl)methyl 3-(2-hydroxyethyl)azetidine-1-carboxylate2763922-91-2C20H21NO3
- rac-(9H-Fluoren-9-yl)methyl N-[(1R,2R)-2-hydroxy-2-methylcyclobutyl]carbamate2763925-00-2C20H21NO3
- (9H-Fluoren-9-yl)methyl (3R,4S)-3-hydroxy-4-methylpyrrolidine-1-carboxylate2763889-97-8C20H21NO3
- (9H-Fluoren-9-yl)methyl N-[1-(2-hydroxyethyl)cyclopropyl]carbamate2763927-72-4C20H21NO3
- rac-(9H-Fluoren-9-yl)methyl (2R,3R)-3-hydroxy-2-methylpyrrolidine-1-carboxylate2763928-37-4C20H21NO3
- (9H-Fluoren-9-yl)methyl N-(4-hydroxy-3-methylidenebutyl)carbamate2763927-84-8C20H21NO3
- (9H-Fluoren-9-yl)methyl (2S,3S)-3-hydroxy-2-methylpyrrolidine-1-carboxylate2763887-62-1C20H21NO3
- Benzyl 3-ethenyl-3-phenylmorpholine-4-carboxylate2770554-13-5C20H21NO3
- (9H-Fluoren-9-yl)methyl N-{[(1R,2S)-2-hydroxycyclobutyl]methyl}carbamate2770452-92-9C20H21NO3
- (9H-Fluoren-9-yl)methyl N-(1-methoxybut-3-en-2-yl)carbamate2770501-18-1C20H21NO3
- (9H-Fluoren-9-yl)methyl N-[2-(prop-2-en-1-yloxy)ethyl]carbamate2770517-90-1C20H21NO3
- rac-(9H-Fluoren-9-yl)methyl N-[(1R,2R)-2-(hydroxymethyl)cyclobutyl]carbamate2763928-89-6C20H21NO3
- 3,4-Dihydro-5-(phenylmethoxy)-1(2H)-pyridinecarboxylic acid phenylmethyl ester251956-15-7C20H21NO3
- 2-(Benzyloxy)-N-(tetrahydrofuran-3-yl)-4-vinylbenzamide3078442-64-2C20H21NO3
- (2-(Benzyloxy)-4-vinylphenyl)(morpholino)methanone3078438-77-1C20H21NO3
- 5-(3-Methylpiperidine-1-carbonyl)-[1,1'-biphenyl]-3-carboxylic acid3078460-30-4C20H21NO3
- 5-(4-Methylpiperidine-1-carbonyl)-[1,1'-biphenyl]-3-carboxylic acid3078447-12-5C20H21NO3
- 7-(Diethylamino)-2-(4-methoxyphenyl)-4H-chromen-4-one231627-91-1C20H21NO3
- 1H-Indole-1-carboxylic acid,5-(4-methoxyphenyl)-,1,1-dimethylethyl ester777061-24-2C20H21NO3
- 1H-Indole-1-carboxylic acid,5-(2-methylphenoxy)-,1,1-dimethylethyl ester1007893-41-5C20H21NO3
- 4-Benzyl-3-(4-phenylbutanoyl)-1,3-oxazolidin-2-one170450-77-8C20H21NO3
- 2-([1,1'-Biphenyl]-2-ylmethyl)-1-acetylpyrrolidine-2-carboxylic acid2816676-90-9C20H21NO3
- N-(4-Methoxybenzyl)-N-phenyl-3,4-dihydro-2H-pyran-6-carboxamide3015545-34-0C20H21NO3
- 4-Benzyl-3-[3-(2-methylphenyl)propanoyl]-1,3-oxazolidin-2-one2567582-01-6C20H21NO3
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 trans-3-Morpholinomethylflavanone, (9H-Fluoren-9-yl)methyl 3-hydroxy-3-methylpyrrolidine-1-carboxylate, Benzyl 3-benzoylpiperidine-1-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 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.