Molecular formula
C21H23NO2
164 compounds have this formula on CompoundList.
- Molar mass
- 321.42g/mol
- Monoisotopic mass
- 332.2419Da
- Atoms
- 47
- Elements
- 4
- Rings plus double bonds
- 11
The formula C21H23NO2 describes a molecule made of 21 carbon atoms, 23 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 × 2178.47%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 237.21%1.008 × 23 = 23.184 g/mol
- N Nitrogen × 14.36%14.007 × 1 = 14.007 g/mol
- O Oxygen × 29.96%15.999 × 2 = 31.998 g/mol
Look up another formula
Compounds with the formula C21H23NO2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 101 to 164 of 164 compounds
1-Methyl-3-(3-oxo-1,3-diphenylpropyl)piperidin-4-one
CAS 68164-52-3C21H23NO2
![4-[2-(2-Cyclopentyl-7-methoxy-4-benzofuranyl)ethyl]pyridine chemical structure, C21H23NO2, CAS 202117-21-3](/s/VTYJSCISUOOQFN-UHFFFAOYSA-N.svg)
4-[2-(2-Cyclopentyl-7-methoxy-4-benzofuranyl)ethyl]pyridine
CAS 202117-21-3C21H23NO2
1-Benzyl-3-methyl-5-(2-oxo-2-phenylethyl)piperidin-4-one
CAS 62329-15-1C21H23NO2
Carboxy terbinafine-d7
CAS 1246833-21-5C21H23NO2
![2-[3-(Hexylamino)phenyl]-4H-1-benzopyran-4-one chemical structure, C21H23NO2, CAS 920286-97-1](/s/CIZYYKDGXPCTRO-UHFFFAOYSA-N.svg)
2-[3-(Hexylamino)phenyl]-4H-1-benzopyran-4-one
CAS 920286-97-1C21H23NO2
![2-[4-(Hexylamino)phenyl]-4H-1-benzopyran-4-one chemical structure, C21H23NO2, CAS 920286-96-0](/s/LFZRNOJSISQLSK-UHFFFAOYSA-N.svg)
2-[4-(Hexylamino)phenyl]-4H-1-benzopyran-4-one
CAS 920286-96-0C21H23NO2
![4H-1-Benzopyran-4-one, 2-[[4-(diethylamino)-2-methylphenyl]methylene]-2,3-dihydro- chemical structure, C21H23NO2, CAS 71156-00-8](/s/YSVUISQPGOOHOC-UHFFFAOYSA-N.svg)
4H-1-Benzopyran-4-one, 2-[[4-(diethylamino)-2-methylphenyl]methylene]-2,3-dihydro-
CAS 71156-00-8C21H23NO2
![2-Phenyl-1-(spiro[chroman-2,4'-piperidin]-1'-yl)ethanone chemical structure, C21H23NO2, CAS 1394031-08-3](/s/QKYLGUVKKWZYMA-UHFFFAOYSA-N.svg)
2-Phenyl-1-(spiro[chroman-2,4'-piperidin]-1'-yl)ethanone
CAS 1394031-08-3C21H23NO2
N-(1-(Benzofuran-2-yl)propan-2-yl)-2-phenylbutanamide
CAS 2034610-39-2C21H23NO2
4-(Diphenylmethyl)-1-(oxirane-2-carbonyl)piperidine
CAS 2411194-41-5C21H23NO2
5-(4-Methylphenyl)-2-(tricyclo(3.3.1.1(sup 3,7))dec-1-ylimino)-3(2H)-furanone
CAS 126681-74-1C21H23NO2
![Methyl 2-{4-amino-3-[(3,5-dimethylphenyl)ethynyl]phenyl}-2-methylpropanoate chemical structure, C21H23NO2, CAS 486406-56-8](/s/HHLWLOGDYILDFL-UHFFFAOYSA-N.svg)
Methyl 2-{4-amino-3-[(3,5-dimethylphenyl)ethynyl]phenyl}-2-methylpropanoate
CAS 486406-56-8C21H23NO2
![Spiro[piperidine-3,9'-[9H]xanthen]-2-one, 1-butyl- chemical structure, C21H23NO2, CAS 648928-53-4](/s/AFQPAYXRTJHOLA-UHFFFAOYSA-N.svg)
Spiro[piperidine-3,9'-[9H]xanthen]-2-one, 1-butyl-
CAS 648928-53-4C21H23NO2
![2-[2,6-Di(propan-2-yl)phenyl]-4-methyl-1H-isoindole-1,3(2H)-dione chemical structure, C21H23NO2, CAS 63334-88-3](/s/DPSJSFNZSFZIAP-UHFFFAOYSA-N.svg)
2-[2,6-Di(propan-2-yl)phenyl]-4-methyl-1H-isoindole-1,3(2H)-dione
CAS 63334-88-3C21H23NO2
1,3,4,5-Tetrahydro-8-methoxy-1-methyl-3-(phenylmethyl)-1,4-ethano-2H-3-benzazepin-2-one
CAS 105985-24-8C21H23NO2
9H-Fluoren-9-ylmethyl N-cyclohexylcarbamate
CAS 35661-50-8C21H23NO2
![1-[2-(1-Benzofuran-2-yl)ethyl]-4-phenylpiperidin-4-ol chemical structure, C21H23NO2, CAS 62590-69-6](/s/SKLNOSSRLFROHI-UHFFFAOYSA-N.svg)
1-[2-(1-Benzofuran-2-yl)ethyl]-4-phenylpiperidin-4-ol
CAS 62590-69-6C21H23NO2
1-(4-Methoxyphenyl)-1-(4-piperidinophenyl)-2-propyn-1-ol
CAS 214746-70-0C21H23NO2
![N-[4-(2-Ethoxyethoxy)benzyl]-1-naphthalenamine chemical structure, C21H23NO2, CAS 1040681-80-8](/s/MBVOEONWWIZGSQ-UHFFFAOYSA-N.svg)
N-[4-(2-Ethoxyethoxy)benzyl]-1-naphthalenamine
CAS 1040681-80-8C21H23NO2
![N-[2-(2-Ethoxyethoxy)benzyl]-1-naphthalenamine chemical structure, C21H23NO2, CAS 1040682-63-0](/s/YFXCAQCUJRDJJJ-UHFFFAOYSA-N.svg)
N-[2-(2-Ethoxyethoxy)benzyl]-1-naphthalenamine
CAS 1040682-63-0C21H23NO2
Methyl 1-(4,4-diphenyl-3-buten-1-yl)-3-azetidinecarboxylate
CAS 1229705-60-5C21H23NO2
7-(Diethylamino)-4-methyl-3-(4-methylphenyl)-2H-1-benzopyran-2-one
CAS 29639-43-8C21H23NO2
7-(Diethylamino)-4-methyl-3-(2-methylphenyl)-2H-1-benzopyran-2-one
CAS 132145-21-2C21H23NO2
(s)-3-Styryl-piperidine-1-carboxylic acid benzyl ester
CAS 405089-04-5C21H23NO2
- 3-Styryl-piperidine-1-carboxylic acid benzyl ester404914-02-9C21H23NO2
- 3-(4-(1-Butyl-1H-indol-2-yl)phenyl)propanoic acid88561-07-3C21H23NO2
- 8-(Hexylamino)-2-phenyl-4H-1-benzopyran-4-one920287-01-0C21H23NO2
- 7-(Hexylamino)-2-phenyl-4H-1-benzopyran-4-one920287-00-9C21H23NO2
- 6-(Hexylamino)-2-phenyl-4H-1-benzopyran-4-one920286-99-3C21H23NO2
- 3-(Hexylamino)-2-phenyl-4H-1-benzopyran-4-one920286-98-2C21H23NO2
- 2-[2-(2,4-Dimethoxyphenyl)ethenyl]-3-ethyl-3-methyl-3H-indole90162-49-5C21H23NO2
- 1-[4-(1-Hydroxy-1-phenyl-2-propyn-1-yl)phenyl]-3-piperidinemethanol1300688-35-0C21H23NO2
- (5-((5-Phenylpentyl)oxy)quinolin-8-yl)methanol1820856-51-6C21H23NO2
- 2-Phenoxy-1-(6-phenyl-2-azaspiro[3.3]heptan-2-yl)propan-1-one2380043-68-3C21H23NO2
- 1-[4-(Hydroxydiphenylmethyl)piperidin-1-yl]prop-2-en-1-one2308161-33-1C21H23NO2
- Gpbar1-IN-3C21H23NO2
- 6-Benzyl-2-(benzyloxy)-6-azaspiro[3.4]octan-8-one3026379-48-3C21H23NO2
- tert-Butyl N-[1-[3-(4-ethynylphenyl)phenyl]ethyl]carbamate3078586-38-3C21H23NO2
- 1-[2-(4,4-Dimethyl-4,5-dihydro-1,3-oxazol-2-yl)phenyl]-1-phenylbutan-2-one497930-80-0C21H23NO2
- 5-(Morpholin-4-yl)-2,4-diphenylpent-1-en-3-one93595-15-4C21H23NO2
- Phenyl(4-{[(2S,3S)-3-phenyloxiran-2-yl]methyl}piperidin-1-yl)methanone189109-49-7C21H23NO2
- 6-{[(Anthracen-9-yl)methyl]amino}hexanoic acid790257-14-6C21H23NO2
- Dapoxetine impurity 1071797881-08-3C21H23NO2
- tert-Butyl (2E)-3-(9-ethyl-9H-carbazol-3-yl)prop-2-enoate2138817-06-6C21H23NO2
- tert-Butyl 2-amino-3-[4-(2-phenylethynyl)phenyl]propanoate2803819-68-1C21H23NO2
- (9H-Fluoren-9-yl)methyl N-(4-methylpent-4-en-1-yl)carbamate2770498-02-5C21H23NO2
- (9H-Fluoren-9-yl)methyl N-(3-methylpent-1-en-3-yl)carbamate2770556-16-4C21H23NO2
- (9H-Fluoren-9-yl)methyl N-(prop-2-en-1-yl)-N-(propan-2-yl)carbamate2770500-20-2C21H23NO2
- (9H-Fluoren-9-yl)methyl N-(hex-5-en-3-yl)carbamate2770525-39-6C21H23NO2
- (9H-Fluoren-9-yl)methyl N-(3-methylpent-4-en-1-yl)carbamate2770498-77-4C21H23NO2
- (9H-Fluoren-9-yl)methyl N-(prop-2-en-1-yl)-N-propylcarbamate2770554-79-3C21H23NO2
- (9H-Fluoren-9-yl)methyl N-(but-3-en-1-yl)-N-ethylcarbamate2770499-15-3C21H23NO2
- (9H-Fluoren-9-yl)methyl N-methyl-N-(pent-4-en-1-yl)carbamate2770545-67-8C21H23NO2
- (9H-Fluoren-9-yl)methyl N-(2,2-dimethylbut-3-en-1-yl)carbamate2770488-10-1C21H23NO2
- (9H-Fluoren-9-yl)methyl N-(2-methylpent-4-en-2-yl)carbamate2770524-85-9C21H23NO2
- (9H-Fluoren-9-yl)methyl N-(hex-5-en-2-yl)carbamate2770556-96-0C21H23NO2
- (9H-Fluoren-9-yl)methyl N-ethyl-N-(2-methylprop-2-en-1-yl)carbamate2770519-00-9C21H23NO2
- 1-(1-(3-(Benzyloxy)phenyl)cyclopropyl)piperidin-4-one3078333-80-6C21H23NO2
- 1-(1-(4-(Benzyloxy)phenyl)cyclopropyl)piperidin-4-one3078332-24-5C21H23NO2
- 2-(Benzyloxy)-N-cyclopentyl-4-vinylbenzamide3078427-15-0C21H23NO2
- 3-(Benzyloxy)-N-(1-methylcyclobutyl)-5-vinylbenzamide3078453-09-2C21H23NO2
- (4-Methoxyphenyl)-[1-(1,1,2,2,3,3,4,4,5,5,5-undecadeuteriopentyl)indol-3-yl]methanone1346604-41-8C21H23NO2
- tert-Butyl 2-(4-ethylphenyl)-1H-indole-1-carboxylate2214289-91-3C21H23NO2
- Ethyl 5-benzhydryl-5-azaspiro[2.3]hexane-2-carboxylate3076427-41-0C21H23NO2
Frequently asked questions
What is the molar mass of C21H23NO2?
The molar mass of C21H23NO2 is 321.42 g/mol, calculated from standard atomic weights for 21 carbon atoms, 23 hydrogen atoms, 1 nitrogen atom and 2 oxygen atoms. The monoisotopic mass is 332.2419 Da.
How many compounds have the formula C21H23NO2?
CompoundList lists 164 compounds with the molecular formula C21H23NO2, including 1-Methyl-3-(3-oxo-1,3-diphenylpropyl)piperidin-4-one, 4-[2-(2-Cyclopentyl-7-methoxy-4-benzofuranyl)ethyl]pyridine, 1-Benzyl-3-methyl-5-(2-oxo-2-phenylethyl)piperidin-4-one. 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 C21H23NO2?
C21H23NO2 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.