Molecular formula
C20H21NO
141 compounds have this formula on CompoundList.
- Molar mass
- 291.39g/mol
- Monoisotopic mass
- 297.2000Da
- Atoms
- 43
- Elements
- 4
- Rings plus double bonds
- 11
The formula C20H21NO describes a molecule made of 20 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom and 1 oxygen atom. 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 × 2082.44%12.011 × 20 = 240.220 g/mol
- H Hydrogen × 217.26%1.008 × 21 = 21.168 g/mol
- N Nitrogen × 14.81%14.007 × 1 = 14.007 g/mol
- O Oxygen × 15.49%15.999 × 1 = 15.999 g/mol
Look up another formula
Compounds with the formula C20H21NO
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 141 compounds
alpha-Phenyl-alpha-(3-(1-pyrrolidinyl)-1-propyn-1-yl)benzenemethanol
CAS 968-63-8C20H21NO
(1S,2S)-3-(Methylamino)-2-naphthalen-2-yl-1-phenylpropan-1-ol
CAS 492434-58-9C20H21NO
Danitracen
CAS 31232-26-5C20H21NO
N,N-Dimethyl-5H-dibenzo(a,d)cycloheptene-delta 5,alpha-propylamine N-oxide
CAS 6682-26-4C20H21NO
![4,4,6-Trimethyl-6-phenyl-5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinolin-2(1H)-one chemical structure, C20H21NO, CAS 13671-84-6](/s/LQTHFUFKKNVFEO-UHFFFAOYSA-N.svg)
4,4,6-Trimethyl-6-phenyl-5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinolin-2(1H)-one
CAS 13671-84-6C20H21NO
N-(4-Phenylhepta-1,6-dien-4-yl)benzamide
CAS 307340-00-7C20H21NO
3-Benzylamino-5-p-tolyl-cyclohex-2-enone
CAS 6401-56-5C20H21NO
![1-Phenyl-1-[4-(1-piperidinyl)phenyl]-2-propyn-1-ol chemical structure, C20H21NO, CAS 214746-69-7](/s/AIBIEAJBGHJQJF-UHFFFAOYSA-N.svg)
1-Phenyl-1-[4-(1-piperidinyl)phenyl]-2-propyn-1-ol
CAS 214746-69-7C20H21NO
Phenyl-(2,2,4,6-tetramethylquinolin-1-yl)methanone
CAS 664993-97-9C20H21NO
1-(2,3-Diphenylacryloyl)piperidine
CAS 78956-18-0C20H21NO
2,2,4-Trimethyl-1-(phenylacetyl)-1,2-dihydroquinoline
CAS 5305-22-6C20H21NO
(2Z)-1-Phenyl-2-(2,3,3-trimethyl-4H-isoquinolin-1-ylidene)ethanone
CAS 331001-60-6C20H21NO
2,2-Diphenyl-N,N-di(prop-2-en-1-yl)acetamide
CAS 2877-31-8C20H21NO
1-Naphthalenyl(1-pentyl-1H-pyrrol-3-yl)methanone
CAS 162934-73-8C20H21NO
2-Benzhydryl-3-quinuclidinone
CAS 32531-66-1C20H21NO
![4-({Methyl[(1R)-1-(naphthalen-1-yl)ethyl]amino}methyl)phenol chemical structure, C20H21NO, CAS 2657659-42-0](/s/QFTKMDZKABQMHI-OAHLLOKOSA-N.svg)
4-({Methyl[(1R)-1-(naphthalen-1-yl)ethyl]amino}methyl)phenol
CAS 2657659-42-0C20H21NO
2-(4-Methoxyphenyl)-N-(naphthalen-1-ylmethyl)ethanamine
CAS 416889-35-5C20H21NO
![3-[2-(Naphth-2-yl)ethyl]-5-ethyl-6-methylpyridin-2(1H)-one chemical structure, C20H21NO, CAS 147440-06-0](/s/QALBKNORHKXXTG-UHFFFAOYSA-N.svg)
3-[2-(Naphth-2-yl)ethyl]-5-ethyl-6-methylpyridin-2(1H)-one
CAS 147440-06-0C20H21NO
![Benzyl(methyl)[2-(naphthalen-1-yloxy)ethyl]amine chemical structure, C20H21NO, CAS 117263-75-9](/s/PYOZLIGGCNJDPX-UHFFFAOYSA-N.svg)
Benzyl(methyl)[2-(naphthalen-1-yloxy)ethyl]amine
CAS 117263-75-9C20H21NO
![6-[4-(Dimethylamino)benzylidene]-6,7,8,9-tetrahydro-5H-benzocycloheptene-5-one chemical structure, C20H21NO, CAS 101001-12-1](/s/VWPPUIVJOSQTOP-SAPNQHFASA-N.svg)
6-[4-(Dimethylamino)benzylidene]-6,7,8,9-tetrahydro-5H-benzocycloheptene-5-one
CAS 101001-12-1C20H21NO
(1R,2R)-3-(Methylamino)-2-(naphthalen-2-yl)-1-phenylpropan-1-ol
CAS 492434-57-8C20H21NO
![2,4-Diphenyl-3-azabicyclo[3.3.1]nonan-9-one chemical structure, C20H21NO, CAS 34025-58-6](/s/KNKOJSYQFMMPDA-UHFFFAOYSA-N.svg)
2,4-Diphenyl-3-azabicyclo[3.3.1]nonan-9-one
CAS 34025-58-6C20H21NO
![1-[4-(Dimethylamino)phenyl]-5-(4-methylphenyl)penta-1,4-dien-3-one chemical structure, C20H21NO, CAS 38552-36-2](/s/NLERDPHRELGZTH-WFYKWJGLSA-N.svg)
1-[4-(Dimethylamino)phenyl]-5-(4-methylphenyl)penta-1,4-dien-3-one
CAS 38552-36-2C20H21NO
Cotriptyline
CAS 34662-67-4C20H21NO
- (3R)-3-(9H-Fluoren-2-yloxy)-1-azabicyclo[2.2.2]octane867374-65-0C20H21NO
- 1-Benzyl-4-(2-phenylethynyl)piperidin-4-ol28365-00-6C20H21NO
- 5-Phenyl-3-[(2-phenylethyl)amino]cyclohex-2-en-1-one51409-80-4C20H21NO
- Cyclobenzaprine-10,11-epoxide58256-08-9C20H21NO
- 9-Benzyl-6-methoxy-2,3,4,9-tetrahydro-1H-carbazole300801-62-1C20H21NO
- AG-G-62101683206-53-3C20H21NO
- rac N-Demethyl Dapoxetine119357-18-5C20H21NO
- 2-[(Pyridin-4-yl)methyl]-3,4,5,6,7,8-hexahydrophenanthren-1(2H)-one138680-13-4C20H21NO
- N-(3,3-Diphenylprop-2-en-1-yl)cyclobutanecarboxamide920317-77-7C20H21NO
- Oxazole, 2-pentyl-4,5-diphenyl-20662-96-8C20H21NO
- N-[(4-Methoxynaphthalen-1-yl)methyl]-2,5-dimethylaniline332108-20-0C20H21NO
- N-[(4-Methoxynaphthalen-1-yl)methyl]-3,5-dimethylaniline332107-75-2C20H21NO
- N-[4-(1-Hexynyl)phenyl]-4-methylbenzenecarboxamide439097-36-6C20H21NO
- N-[(2-Methoxynaphthalen-1-yl)methyl]-2-phenylethanamine355140-92-0C20H21NO
- 5-tert-Butyl-2-(2-methylphenyl)-1H-indole-3-carbaldehyde590346-96-6C20H21NO
- 1-Benzyl-2,2,4-trimethyl-1,2-dihydroquinoline-6-carbaldehyde367909-68-0C20H21NO
- (4-((2,5-Dihydro-1H-pyrrol-1-yl)methyl)phenyl)(2,4-dimethylphenyl)methanone898764-13-1C20H21NO
- (4-((2,5-Dihydro-1H-pyrrol-1-yl)methyl)phenyl)(2,5-dimethylphenyl)methanone898764-16-4C20H21NO
- (4-((2,5-Dihydro-1H-pyrrol-1-yl)methyl)phenyl)(2,6-dimethylphenyl)methanone898764-19-7C20H21NO
- (3-((2,5-Dihydro-1H-pyrrol-1-yl)methyl)phenyl)(2,3-dimethylphenyl)methanone898790-13-1C20H21NO
- (3-((2,5-Dihydro-1H-pyrrol-1-yl)methyl)phenyl)(2,5-dimethylphenyl)methanone898790-19-7C20H21NO
- (3-((2,5-Dihydro-1H-pyrrol-1-yl)methyl)phenyl)(3,4-dimethylphenyl)methanone898749-04-7C20H21NO
- (2-((2,5-Dihydro-1H-pyrrol-1-yl)methyl)phenyl)(3,5-dimethylphenyl)methanone898763-35-4C20H21NO
- 3-Hydroxycyclobenzaprine30235-48-4C20H21NO
- 3-Buten-2-one, 4,4-diphenyl-1-(1-pyrrolidinyl)-1976-54-1C20H21NO
- 9-[3-(Diethylamino)prop-1-ynyl]fluoren-9-ol102012-21-5C20H21NO
- [2-(Benzylamino)cyclohex-1-en-1-yl](phenyl)methanone87908-48-3C20H21NO
- 2-(10-Methyl-9,10-dihydroacridin-9-yl)cyclohexan-1-one71167-39-0C20H21NO
- N-[(2-Methoxynaphthalen-1-yl)methyl]-1-phenylethanamine860462-75-5C20H21NO
- (4-((2,5-Dihydro-1H-pyrrol-1-yl)methyl)phenyl)(2,3-dimethylphenyl)methanone898764-11-9C20H21NO
- (4-((2,5-Dihydro-1H-pyrrol-1-yl)methyl)phenyl)(3,4-dimethylphenyl)methanone898764-22-2C20H21NO
- (4-((2,5-Dihydro-1H-pyrrol-1-yl)methyl)phenyl)(3,5-dimethylphenyl)methanone898764-25-5C20H21NO
- (3-((2,5-Dihydro-1H-pyrrol-1-yl)methyl)phenyl)(2,4-dimethylphenyl)methanone898790-16-4C20H21NO
- (3-((2,5-Dihydro-1H-pyrrol-1-yl)methyl)phenyl)(2,6-dimethylphenyl)methanone898790-22-2C20H21NO
- (3-((2,5-Dihydro-1H-pyrrol-1-yl)methyl)phenyl)(3,5-dimethylphenyl)methanone898749-07-0C20H21NO
- (2-((2,5-Dihydro-1H-pyrrol-1-yl)methyl)phenyl)(2,3-dimethylphenyl)methanone898763-20-7C20H21NO
- (2-((2,5-Dihydro-1H-pyrrol-1-yl)methyl)phenyl)(2,4-dimethylphenyl)methanone898763-23-0C20H21NO
- (2-((2,5-Dihydro-1H-pyrrol-1-yl)methyl)phenyl)(2,5-dimethylphenyl)methanone898763-26-3C20H21NO
- (2-((2,5-Dihydro-1H-pyrrol-1-yl)methyl)phenyl)(2,6-dimethylphenyl)methanone898763-29-6C20H21NO
- (2-((2,5-Dihydro-1H-pyrrol-1-yl)methyl)phenyl)(3,4-dimethylphenyl)methanone898763-32-1C20H21NO
- (S)-N-Demethyl dapoxetine147199-39-1C20H21NO
- 1-Azabicyclo(2.2.2)oct-2-ene-3-methanol, alpha,alpha-diphenyl-60999-41-9C20H21NO
- 5-Methyl-4-[(1e)-naphthalen-1(4H)-ylideneamino]-2-(propan-2-yl)phenol6320-00-9C20H21NO
- (E)-3-Phenyl-1-(4-phenylpiperidin-1-yl)prop-2-en-1-one866150-89-2C20H21NO
- JWH-030 2-naphthoyl isomer2365471-38-9C20H21NO
- 2-Azaspiro(3.3)heptane-5-carboxaldehyde, 2-(diphenylmethyl)-1263296-83-8C20H21NO
- 1',3',3',6-Tetramethylspiro[chromene-2,2'-indoline]16726-70-8C20H21NO
- Cyclobenzaprine-d3 N-oxide1189877-07-3C20H21NO
- 1-(10,11-Dihydro-5H-dibenzo(a,d)cyclohepten-5-yl)-2-piperidinone117339-63-6C20H21NO
- 4'-Hydroxy-2-(2-methylallyl)-5-propylbiphenyl-3-carbonitrile1422022-20-5C20H21NO
- 1-{3-Methylidene-8-azabicyclo[3.2.1]octan-8-yl}-2-(naphthalen-1-yl)ethan-1-one2310041-58-6C20H21NO
- Benzyl[2-(7-methoxynaphthalen-1-yl)ethyl]amine2138178-39-7C20H21NO
- 2-[3-(Dimethylamino)prop-1-ynyl]tricyclo[9.4.0.03,8]pentadeca-1(15),3,5,7,11,13-hexaen-2-ol5391-33-3C20H21NO
- N-Cyclohexyl-9H-fluorene-9-carboxamide7471-88-7C20H21NO
- 1-[4-(tert-Butyl)benzyl]-2(1H)-quinolinone866155-79-5C20H21NO
- 2-[(9,10-Methanoanthracen-9(10H)-yl)methyl]morpholine62686-22-0C20H21NO
- 3-(4-Pentylphenacyl) benzonitrile178686-90-3C20H21NO
- Phenyl{3-[1-(pyrrolidin-1-yl)prop-1-en-1-yl]phenyl}methanone73031-37-5C20H21NO
- 3,3-Dibenzyl-1-vinyl-2-pyrrolidinone1353499-92-9C20H21NO
- 1-[(4-tert-Butylphenyl)methyl]-1H-indole-3-carbaldehyde405274-91-1C20H21NO
- N-[(2-Methylphenyl)-(2-phenylcyclopropyl)methyl]prop-2-enamide2305528-25-8C20H21NO
- 4-[(2-Methoxynaphthalen-1-yl)methyl]-N,N-dimethylaniline5426-22-2C20H21NO
- N-[8-Methyl-2-(propan-2-yl)phenanthren-3-yl]acetamide6314-06-3C20H21NO
- (2E)-2-[(N-Phenylanilino)methylidene]cycloheptan-1-one33739-26-3C20H21NO
- 2,6-Methano-4H-1,4-benzoxazocine, 3,4,5,6-tetrahydro-4-cinnamyl-67293-77-0C20H21NO
- (R)-N-Demethyl dapoxetine1202160-36-8C20H21NO
- N-(3-Propoxybenzyl)naphthalen-1-amine1179381-12-4C20H21NO
- Benzyl[2-(2-methoxynaphthalen-1-yl)ethyl]amine1071614-32-8C20H21NO
- Phenol, 4-(6-pentyl-2-quinolinyl)-869885-36-9C20H21NO
- 2-(2-Methylbenzoyl)-6-phenyl-2-azaspiro[3.3]heptane2379975-24-1C20H21NO
- 3-(1-Benzhydrylazetidin-3-ylidene)butan-2-one2648904-61-2C20H21NO
- N-(Naphthalen-2-ylmethyl)-2-(P-tolyloxy)ethanamine2863686-93-3C20H21NO
- N-(9H-Fluoren-2-yl)cyclohexanecarboxamide667886-93-3C20H21NO
- N-[3-(9,10-Methanoanthracen-9(10H)-yl)propyl]acetamide60070-65-7C20H21NO
- 1a(2),3a(2),3a(2),7-Tetramethylspiro[2H-1-benzopyran-2,2a(2)-indoline]17487-74-0C20H21NO
- N-(2-Phenoxybutyl)-1-naphthalenamine1040688-24-1C20H21NO
Frequently asked questions
What is the molar mass of C20H21NO?
The molar mass of C20H21NO is 291.39 g/mol, calculated from standard atomic weights for 20 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom and 1 oxygen atom. The monoisotopic mass is 297.2000 Da.
How many compounds have the formula C20H21NO?
CompoundList lists 141 compounds with the molecular formula C20H21NO, including alpha-Phenyl-alpha-(3-(1-pyrrolidinyl)-1-propyn-1-yl)benzenemethanol, (1S,2S)-3-(Methylamino)-2-naphthalen-2-yl-1-phenylpropan-1-ol, Danitracen. 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 C20H21NO?
C20H21NO 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.