Molecular formula
C21H23NO3
357 compounds have this formula on CompoundList.
- Molar mass
- 337.42g/mol
- Monoisotopic mass
- 343.2055Da
- Atoms
- 48
- Elements
- 4
- Rings plus double bonds
- 11
The formula C21H23NO3 describes a molecule made of 21 carbon atoms, 23 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 × 2174.75%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 236.87%1.008 × 23 = 23.184 g/mol
- N Nitrogen × 14.15%14.007 × 1 = 14.007 g/mol
- O Oxygen × 314.22%15.999 × 3 = 47.997 g/mol
Look up another formula
Compounds with the formula C21H23NO3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 301 to 357 of 357 compounds
![(9H-Fluoren-9-yl)methyl N-[2-hydroxy-2-(1-methylcyclopropyl)ethyl]carbamate chemical structure, C21H23NO3, CAS 2764020-11-1](/s/JHVQIKXHRHKVAO-UHFFFAOYSA-N.svg)
(9H-Fluoren-9-yl)methyl N-[2-hydroxy-2-(1-methylcyclopropyl)ethyl]carbamate
CAS 2764020-11-1C21H23NO3
(9H-Fluoren-9-yl)methyl (2R)-2-(1-hydroxyethyl)pyrrolidine-1-carboxylate
CAS 2763899-10-9C21H23NO3
(9H-Fluoren-9-yl)methyl (2S,5S)-5-hydroxy-2-methylpiperidine-1-carboxylate
CAS 2763890-13-5C21H23NO3
(9H-Fluoren-9-yl)methyl 2-(2-hydroxypropan-2-yl)azetidine-1-carboxylate
CAS 2764020-49-5C21H23NO3
![(9H-Fluoren-9-yl)methyl N-{[(1R,2R)-2-hydroxycyclopentyl]methyl}carbamate chemical structure, C21H23NO3, CAS 2763885-94-3](/s/IXHWAMFLQTYAGQ-JLTOFOAXSA-N.svg)
(9H-Fluoren-9-yl)methyl N-{[(1R,2R)-2-hydroxycyclopentyl]methyl}carbamate
CAS 2763885-94-3C21H23NO3
![rac-(9H-Fluoren-9-yl)methyl N-[(1R,2R)-2-hydroxycyclopentyl]-N-methylcarbamate chemical structure, C21H23NO3, CAS 2271869-86-2](/s/YVRZUYOSUPLSDT-WOJBJXKFSA-N.svg)
rac-(9H-Fluoren-9-yl)methyl N-[(1R,2R)-2-hydroxycyclopentyl]-N-methylcarbamate
CAS 2271869-86-2C21H23NO3
![(9H-Fluoren-9-yl)methyl N-[1-(hydroxymethyl)cyclobutyl]-N-methylcarbamate chemical structure, C21H23NO3, CAS 2763928-00-1](/s/GDVBSWGRCWNNGB-UHFFFAOYSA-N.svg)
(9H-Fluoren-9-yl)methyl N-[1-(hydroxymethyl)cyclobutyl]-N-methylcarbamate
CAS 2763928-00-1C21H23NO3
![(9H-Fluoren-9-yl)methyl N-[1-(3-hydroxypropyl)cyclopropyl]carbamate chemical structure, C21H23NO3, CAS 2294125-10-1](/s/GLIZJMJOUBXHLZ-UHFFFAOYSA-N.svg)
(9H-Fluoren-9-yl)methyl N-[1-(3-hydroxypropyl)cyclopropyl]carbamate
CAS 2294125-10-1C21H23NO3
![(9H-Fluoren-9-yl)methyl N-[3-(2-hydroxyethyl)cyclobutyl]carbamate chemical structure, C21H23NO3, CAS 2303167-54-4](/s/YXNYRSVATRPRBT-UHFFFAOYSA-N.svg)
(9H-Fluoren-9-yl)methyl N-[3-(2-hydroxyethyl)cyclobutyl]carbamate
CAS 2303167-54-4C21H23NO3
![rac-(9H-Fluoren-9-yl)methyl N-(2-hydroxyethyl)-N-[(1R,2R)-2-methylcyclopropyl]carbamate chemical structure, C21H23NO3, CAS 2763921-67-9](/s/FZQZBJJGMBLSNH-JLTOFOAXSA-N.svg)
rac-(9H-Fluoren-9-yl)methyl N-(2-hydroxyethyl)-N-[(1R,2R)-2-methylcyclopropyl]carbamate
CAS 2763921-67-9C21H23NO3
(9H-Fluoren-9-yl)methyl (2S,4R)-2-ethyl-4-hydroxypyrrolidine-1-carboxylate
CAS 2763888-69-1C21H23NO3
![(9H-Fluoren-9-yl)methyl N-[1-(2-hydroxyethyl)cyclobutyl]carbamate chemical structure, C21H23NO3, CAS 2294869-79-5](/s/VGEDMMPAUUTTGS-UHFFFAOYSA-N.svg)
(9H-Fluoren-9-yl)methyl N-[1-(2-hydroxyethyl)cyclobutyl]carbamate
CAS 2294869-79-5C21H23NO3
![(9H-Fluoren-9-yl)methyl N-[(1R,2R)-2-(hydroxymethyl)cyclopentyl]carbamate chemical structure, C21H23NO3, CAS 2763887-11-0](/s/RIKVQIPMHSHFRL-VBKZILBWSA-N.svg)
(9H-Fluoren-9-yl)methyl N-[(1R,2R)-2-(hydroxymethyl)cyclopentyl]carbamate
CAS 2763887-11-0C21H23NO3
rac-(9H-Fluoren-9-yl)methyl (3R,4R)-3-(hydroxymethyl)-4-methylpyrrolidine-1-carboxylate
CAS 2158262-22-5C21H23NO3
(9H-Fluoren-9-yl)methyl 3-ethyl-3-hydroxypyrrolidine-1-carboxylate
CAS 2764004-19-3C21H23NO3
(9H-Fluoren-9-yl)methyl N-cyclopropyl-N-(3-hydroxypropyl)carbamate
CAS 2030056-52-9C21H23NO3
![(9H-Fluoren-9-yl)methyl N-[(1-hydroxycyclobutyl)methyl]-N-methylcarbamate chemical structure, C21H23NO3, CAS 2763918-96-1](/s/QEYCDBDJDKTTSJ-UHFFFAOYSA-N.svg)
(9H-Fluoren-9-yl)methyl N-[(1-hydroxycyclobutyl)methyl]-N-methylcarbamate
CAS 2763918-96-1C21H23NO3
rac-(9H-Fluoren-9-yl)methyl (3R,5R)-3-hydroxy-5-methylpiperidine-1-carboxylate
CAS 2763965-52-0C21H23NO3
(9H-Fluoren-9-yl)methyl N-(2-hydroxy-1-methylcyclopentyl)carbamate
CAS 2764019-60-3C21H23NO3
![(9H-Fluoren-9-yl)methyl N-[(1S,3R)-3-hydroxycyclohexyl]carbamate chemical structure, C21H23NO3, CAS 2763888-88-4](/s/DQICHXUPESKTMI-LSDHHAIUSA-N.svg)
(9H-Fluoren-9-yl)methyl N-[(1S,3R)-3-hydroxycyclohexyl]carbamate
CAS 2763888-88-4C21H23NO3
![(9H-Fluoren-9-yl)methyl N-[2-hydroxy-1-(1-methylcyclopropyl)ethyl]carbamate chemical structure, C21H23NO3, CAS 2764010-53-7](/s/VVQXUIZGNFWRHU-UHFFFAOYSA-N.svg)
(9H-Fluoren-9-yl)methyl N-[2-hydroxy-1-(1-methylcyclopropyl)ethyl]carbamate
CAS 2764010-53-7C21H23NO3
![(9H-Fluoren-9-yl)methyl N-{[1-(hydroxymethyl)cyclobutyl]methyl}carbamate chemical structure, C21H23NO3, CAS 2279980-70-8](/s/YYVHGSBXSVVWBJ-UHFFFAOYSA-N.svg)
(9H-Fluoren-9-yl)methyl N-{[1-(hydroxymethyl)cyclobutyl]methyl}carbamate
CAS 2279980-70-8C21H23NO3
(9H-Fluoren-9-yl)methyl 4-hydroxy-2,2-dimethylpyrrolidine-1-carboxylate
CAS 2764010-83-3C21H23NO3
(9H-Fluoren-9-yl)methyl N-cyclopropyl-N-(2-hydroxypropyl)carbamate
CAS 2021539-28-4C21H23NO3
- (9H-Fluoren-9-yl)methyl 4-(hydroxymethyl)-2-methylpyrrolidine-1-carboxylate2764011-17-6C21H23NO3
- (9H-Fluoren-9-yl)methyl N-{[(1R,2S)-2-hydroxycyclopentyl]methyl}carbamate2763886-33-3C21H23NO3
- (9H-Fluoren-9-yl)methyl N-[3-(hydroxymethyl)-3-methylcyclobutyl]carbamate2764008-31-1C21H23NO3
- (9H-Fluoren-9-yl)methyl N-cyclopropyl-N-(1-hydroxypropan-2-yl)carbamate2763939-42-8C21H23NO3
- (9H-Fluoren-9-yl)methyl N-[1-(2-hydroxyethyl)cyclopropyl]-N-methylcarbamate2763920-54-1C21H23NO3
- (9H-Fluoren-9-yl)methyl N-[1-(hydroxymethyl)-3-methylcyclobutyl]carbamate2764007-02-3C21H23NO3
- (9H-Fluoren-9-yl)methyl N-(3-cyclopropyl-3-hydroxypropyl)carbamate2302465-24-1C21H23NO3
- rac-(9H-Fluoren-9-yl)methyl (3R,4S)-4-hydroxy-3-methylpiperidine-1-carboxylate2764002-39-1C21H23NO3
- (9H-Fluoren-9-yl)methyl (3S)-3-(2-hydroxyethyl)pyrrolidine-1-carboxylate2763888-83-9C21H23NO3
- (9H-Fluoren-9-yl)methyl 2-(1-hydroxyethyl)pyrrolidine-1-carboxylate2764008-00-4C21H23NO3
- (9H-Fluoren-9-yl)methyl 2-(2-hydroxyethyl)-2-methylazetidine-1-carboxylate2763909-30-2C21H23NO3
- (9H-Fluoren-9-yl)methyl N-(2-cyclopropyl-3-hydroxypropyl)carbamate2302279-17-8C21H23NO3
- rac-(9H-Fluoren-9-yl)methyl (2R,4R)-4-hydroxy-2-methylpiperidine-1-carboxylate2153086-85-0C21H23NO3
- (9H-Fluoren-9-yl)methyl (4R)-4-hydroxy-3,3-dimethylpyrrolidine-1-carboxylate2763886-81-1C21H23NO3
- (9H-Fluoren-9-yl)methyl (2R)-2-(hydroxymethyl)-2-methylpyrrolidine-1-carboxylate2763887-70-1C21H23NO3
- (9H-Fluoren-9-yl)methyl (2S)-2-(hydroxymethyl)-2-methylpyrrolidine-1-carboxylate2763885-72-7C21H23NO3
- (9H-Fluoren-9-yl)methyl N-[3-(1-hydroxycyclopropyl)propyl]carbamate2763946-44-5C21H23NO3
- (9H-Fluoren-9-yl)methyl N-(2-cyclopropyl-2-hydroxyethyl)-N-methylcarbamate2159522-50-4C21H23NO3
- (9H-Fluoren-9-yl)methyl 3-(2-hydroxypropan-2-yl)azetidine-1-carboxylate2763928-10-3C21H23NO3
- (9H-Fluoren-9-yl)methyl N-{2-[(2-methylprop-2-en-1-yl)oxy]ethyl}carbamate2386046-16-6C21H23NO3
- (9H-Fluoren-9-yl)methyl N-methyl-N-[2-(prop-2-en-1-yloxy)ethyl]carbamate2770498-57-0C21H23NO3
- (9H-Fluoren-9-yl)methyl N-[2-(but-3-en-1-yloxy)ethyl]carbamate2770555-89-8C21H23NO3
- (9H-Fluoren-9-yl)methyl N-(2-methoxyethyl)-N-(prop-2-en-1-yl)carbamate2770533-65-6C21H23NO3
- (9H-Fluoren-9-yl)methyl N-[3-(prop-2-en-1-yloxy)propyl]carbamate2770487-64-2C21H23NO3
- (9H-Fluoren-9-yl)methyl 3-ethyl-3-(hydroxymethyl)azetidine-1-carboxylate2763947-13-1C21H23NO3
- (9H-Fluoren-9-yl)methyl 3-(1-methoxyethyl)azetidine-1-carboxylate2920157-26-0C21H23NO3
- tert-Butyl benzyl(3-phenylacryloyl)carbamate2043014-01-1C21H23NO3
- 2-(Benzyloxy)-N-(tetrahydro-2H-pyran-4-yl)-4-vinylbenzamide3078432-18-2C21H23NO3
- (2-(Benzyloxy)-4-vinylphenyl)(2-methylmorpholino)methanone3078429-40-7C21H23NO3
- Ethyl 1-benzyl-4-oxo-5-phenylpiperidine-3-carboxylate1384264-55-4C21H23NO3
- (9H-Fluoren-9-yl)methyl N-[(1S,2S)-2-hydroxycyclohexyl]carbamate1779528-90-3C21H23NO3
- 2,6-Dimethoxy-4-((methyl(naphthalen-1-ylmethyl)amino)methyl)phenol2789532-85-8C21H23NO3
- (E)-1-[2,4-Dimethoxy-5-(3-methylbut-2-enyl)phenyl]-3-pyridin-2-ylprop-2-en-1-one3085517-19-4C21H23NO3
Frequently asked questions
What is the molar mass of C21H23NO3?
The molar mass of C21H23NO3 is 337.42 g/mol, calculated from standard atomic weights for 21 carbon atoms, 23 hydrogen atoms, 1 nitrogen atom and 3 oxygen atoms. The monoisotopic mass is 343.2055 Da.
How many compounds have the formula C21H23NO3?
CompoundList lists 357 compounds with the molecular formula C21H23NO3, including (9H-Fluoren-9-yl)methyl N-[2-hydroxy-2-(1-methylcyclopropyl)ethyl]carbamate, (9H-Fluoren-9-yl)methyl (2R)-2-(1-hydroxyethyl)pyrrolidine-1-carboxylate, (9H-Fluoren-9-yl)methyl (2S,5S)-5-hydroxy-2-methylpiperidine-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 C21H23NO3?
C21H23NO3 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.