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 101 to 200 of 368 compounds
(E)-N-(1,3-Benzodioxol-5-ylmethyl)-3-(4-propan-2-ylphenyl)prop-2-enamide
CAS 469869-06-5C20H21NO3
4-(((4-Ethoxyphenyl)amino)methyl)-7,8-dimethyl-2H-chromen-2-one
CAS 848740-02-3C20H21NO3
Butyl 3-cinnamamidobenzoate
CAS 304887-13-6C20H21NO3
Acetamide, 2-(4-benzoylphenoxy)-N-cyclopentyl-
CAS 42018-54-2C20H21NO3
![3-[(2-Hydroxy-5-methylphenyl)amino]-5-(4-methoxyphenyl)cyclohex-2-en-1-one chemical structure, C20H21NO3, CAS 364737-28-0](/s/UHYOYOKUWSDCQA-UHFFFAOYSA-N.svg)
3-[(2-Hydroxy-5-methylphenyl)amino]-5-(4-methoxyphenyl)cyclohex-2-en-1-one
CAS 364737-28-0C20H21NO3
![5'-Methyl-1'-phenethylspiro[[1,3]dioxane-2,3'-indolin]-2'-one chemical structure, C20H21NO3, CAS 853751-63-0](/s/QCLNYUHFRVBVME-UHFFFAOYSA-N.svg)
5'-Methyl-1'-phenethylspiro[[1,3]dioxane-2,3'-indolin]-2'-one
CAS 853751-63-0C20H21NO3
1-(2-Butoxybenzyl)-5-methyl-1H-indole-2,3-dione
CAS 620931-35-3C20H21NO3
(E)-3-(1,3-Benzodioxol-5-yl)-N-(4-butan-2-ylphenyl)prop-2-enamide
CAS 298215-71-1C20H21NO3
(E)-3-(1,3-Benzodioxol-5-yl)-N-(4-phenylbutan-2-yl)prop-2-enamide
CAS 432509-40-5C20H21NO3
3(2H)-Isoquinolinone, 1-ethyl-6,7-dimethoxy-2-(phenylmethyl)-
CAS 309720-09-0C20H21NO3
5,7-Dimethyl-1-(3-(p-tolyloxy)propyl)indoline-2,3-dione
CAS 951899-34-6C20H21NO3
N-(2,6-Dimethylphenyl)-5-ethoxy-2-methyl-1-benzofuran-3-carboxamide
CAS 929428-28-4C20H21NO3
4'-Azetidinomethyl-3-carboethoxybenzophenone
CAS 898756-28-0C20H21NO3
3'-Azetidinomethyl-2-carboethoxybenzophenone
CAS 898771-45-4C20H21NO3
3-Azetidinomethyl-4'-carboethoxybenzophenone
CAS 898771-51-2C20H21NO3
![(9H-Fluoren-9-yl)methyl N-[(3-hydroxycyclobutyl)methyl]carbamate chemical structure, C20H21NO3, CAS 1465645-39-9](/s/CVJDLBSFCREJIT-UHFFFAOYSA-N.svg)
(9H-Fluoren-9-yl)methyl N-[(3-hydroxycyclobutyl)methyl]carbamate
CAS 1465645-39-9C20H21NO3
![(3-{4-[(Piperidin-1-yl)carbonyl]phenyl}phenyl)acetic acid chemical structure, C20H21NO3, CAS 1381944-32-6](/s/KMYKGIFEUAGYQU-UHFFFAOYSA-N.svg)
(3-{4-[(Piperidin-1-yl)carbonyl]phenyl}phenyl)acetic acid
CAS 1381944-32-6C20H21NO3
(E)-3-(1,3-Benzodioxol-5-yl)-N-(2-methyl-6-propan-2-ylphenyl)prop-2-enamide
CAS 547696-77-5C20H21NO3
3-(1,3-Benzodioxol-5-yl)-N-(4-phenylbutyl)acrylamide
CAS 541519-78-2C20H21NO3
5-(3,4-Dimethoxyphenyl)-3-(phenylamino)cyclohex-2-en-1-one
CAS 332861-73-1C20H21NO3
Piperidine, 1-((4-benzoylphenoxy)acetyl)-
CAS 42017-83-4C20H21NO3
2-(2-Carbazol-9-ylethoxy)ethyl 2-methylprop-2-enoate
CAS 100344-78-3C20H21NO3
![(E)-N-(1,3-Benzodioxol-5-yl)-3-[4-(2-methylpropyl)phenyl]prop-2-enamide chemical structure, C20H21NO3, CAS 329777-62-0](/s/QEQZPPCMUOXCHS-JXMROGBWSA-N.svg)
(E)-N-(1,3-Benzodioxol-5-yl)-3-[4-(2-methylpropyl)phenyl]prop-2-enamide
CAS 329777-62-0C20H21NO3
1-Benzyl-3-hydroxy-5,7-dimethyl-3-(2-oxopropyl)indol-2-one
CAS 879047-11-7C20H21NO3
- 3,4-Dimethylphenyl 1-(4-methylphenyl)-5-oxo-3-pyrrolidinecarboxylate726141-59-9C20H21NO3
- 1-(2-(Isopentyloxy)benzyl)indoline-2,3-dione862691-14-3C20H21NO3
- 1-(4-(Isopentyloxy)benzyl)indoline-2,3-dione862691-18-7C20H21NO3
- 5,7-Dimethyl-1-(3-(o-tolyloxy)propyl)indoline-2,3-dione951899-32-4C20H21NO3
- N-(2,4-Dimethylphenyl)-5-ethoxy-2-methyl-1-benzofuran-3-carboxamide929513-33-7C20H21NO3
- 2-Azetidinomethyl-4'-carboethoxybenzophenone898754-59-1C20H21NO3
- 3-Methyl-N-(1,2,3,4-tetrahydronaphthalen-1-yl)-2,3-dihydro-1,4-benzodioxine-2-carboxamide1212165-75-7C20H21NO3
- N-(3-Hydroxy-3-(naphthalen-1-yl)propyl)-2,5-dimethylfuran-3-carboxamide1421484-20-9C20H21NO3
- (9H-Fluoren-9-yl)methyl N-(3-hydroxycyclobutyl)-N-methylcarbamate2763886-52-6C20H21NO3
- (9H-Fluoren-9-yl)methyl N-(3-hydroxy-1-methylcyclobutyl)carbamate2763885-90-9C20H21NO3
- (9H-Fluoren-9-yl)methyl N-[3-(hydroxymethyl)cyclobutyl]carbamate2150297-87-1C20H21NO3
- Anthraquinone, 1-(diethylamino)methyl-2-methoxy-52723-07-6C20H21NO3
- 5-Benzoxazoleacetic acid, 2-(4-tert-butylphenyl)-alpha-methyl-54785-40-9C20H21NO3
- 1,2,10-Trimethoxydehydroaporphine70403-80-4C20H21NO3
- Ethaneperoxoic acid, 1-cyano-1,4-diphenylpentyl ester58422-77-8C20H21NO3
- (Z)-7-((Dimethylamino)methyl)-2-(4-ethylbenzylidene)-6-hydroxybenzofuran-3(2H)-one896070-48-7C20H21NO3
- Ethyl 1,2-dimethyl-5-phenylmethoxyindole-3-carboxylate52535-63-4C20H21NO3
- N-(Furan-2-ylmethyl)-N-[3-(furan-2-yl)-3-phenylpropyl]acetamide383902-97-4C20H21NO3
- (9H-Fluoren-9-yl)methyl 2-(hydroxymethyl)pyrrolidine-1-carboxylate1339668-62-0C20H21NO3
- 1-(4-Butoxybenzyl)-5-methyl-1H-indole-2,3-dione620931-44-4C20H21NO3
- 2-(4-Benzyloxy-2-methylbutyl)phthalimide885266-50-2C20H21NO3
- 5-Ethoxy-N-(2-ethylphenyl)-2-methyl-1-benzofuran-3-carboxamide929451-71-8C20H21NO3
- 5-Ethoxy-N-(4-ethylphenyl)-2-methyl-1-benzofuran-3-carboxamide929513-60-0C20H21NO3
- N-(3,4-Dimethylphenyl)-5-ethoxy-2-methyl-1-benzofuran-3-carboxamide929451-75-2C20H21NO3
- N-(2,3-Dimethylphenyl)-5-ethoxy-2-methyl-1-benzofuran-3-carboxamide929390-04-5C20H21NO3
- Benzyl 3-benzyl-4-oxopiperidine-1-carboxylate156080-47-6C20H21NO3
- Ethyl 3-benzyl-1-methyl-2-oxo-1,2,3,4-tetrahydro-3-quinolinecarboxylate1105190-21-3C20H21NO3
- N-((2,5-Dimethylfuran-3-yl)methyl)-2-ethoxy-1-naphthamide1351587-94-4C20H21NO3
- 3-Oxa-9-azabicyclo[3.3.1]nonan-9-yl(4-phenoxyphenyl)methanone1421455-23-3C20H21NO3
- (R)-1-FMOC-3-hydroxypiperidine1373512-20-9C20H21NO3
- 4-(4-Methoxyphenyl)-1,2,3,6-tetrahydropyridine-1-carboxylic acid benzyl ester286961-23-7C20H21NO3
- 3-(1,3-Benzodioxol-5-yl)-N-(4-(tert-butyl)phenyl)acrylamide850496-14-9C20H21NO3
- (E)-1-Morpholin-4-yl-3-(4-phenylmethoxyphenyl)prop-2-en-1-one464907-66-2C20H21NO3
- Ethyl 5-ethoxy-2-methyl-1-phenylindole-3-carboxylate461439-06-5C20H21NO3
- N-[(4-Methoxyphenyl)methyl]-3,5,6-trimethyl-1-benzofuran-2-carboxamide622349-46-6C20H21NO3
- (E)-3-(1,3-Benzodioxol-5-yl)-N-(2,6-diethylphenyl)prop-2-enamide544420-50-0C20H21NO3
- N-(4-Ethoxyphenyl)-3,5,6-trimethyl-1-benzofuran-2-carboxamide622348-82-7C20H21NO3
- Pyrrolidine, 1-((3a,12b-dihydrodibenzo(b,f)-1,3-dioxolo(4,5-d)oxepin-2-yl)methyl)-84646-78-6C20H21NO3
- 1-[3-(4-Methoxyphenyl)-3-phenylpropyl]pyrrolidine-2,5-dione385421-56-7C20H21NO3
- 1-(4-Butoxybenzyl)-7-methyl-1H-indole-2,3-dione620932-45-8C20H21NO3
- 3-Benzyl-8-[(dimethylamino)methyl]-7-hydroxy-4-methyl-2H-chromen-2-one692747-20-9C20H21NO3
- 1-Methoxy-4-(2-{[(4-methylbenzoyl)oxy]ethanimidoyl}cyclopropyl)benzene338392-38-4C20H21NO3
- 4-Cyanophenyl 4-(hexyloxy)benzoate50793-87-8C20H21NO3
- N-(2-Ethoxyphenyl)-2-(5-ethyl-1-benzofuran-3-yl)acetamide880396-79-2C20H21NO3
- N-[1-(4-Methoxyphenyl)ethyl]-3,5-dimethyl-1-benzofuran-2-carboxamide1032227-09-0C20H21NO3
- 6-Methyl-2-[4-(piperidine-1-carbonyl)phenyl]benzoic acid1261956-67-5C20H21NO3
- Benzyl 2-benzyl-4-oxopiperidine-1-carboxylate849928-35-4C20H21NO3
- N-Cyclohexyl-3'-formyl-4'-hydroxy[1,1'-biphenyl]-3-carboxamide1093119-03-9C20H21NO3
- tert-Butyl 2-benzoylindoline-1-carboxylate1394031-49-2C20H21NO3
- 4-(Hexyloxy)phenyl 4-cyanobenzoate58546-88-6C20H21NO3
- N-(4-(2-Methoxyphenoxy)but-2-yn-1-yl)-3-phenylpropanamide1421464-66-5C20H21NO3
- Methyl 2-(4-{3-[(pyrrolidin-1-yl)carbonyl]phenyl}phenyl)acetate1820704-95-7C20H21NO3
- RCS-4 M9 metabolite1630022-96-6C20H21NO3
- N-Benzyl-N-(6-methoxy-3,4-dihydro-2H-1-benzopyran-4-yl)prop-2-enamide2094582-85-9C20H21NO3
- Ethyl 3-[5-(Benzyloxy)-3-indolyl]propanoate102012-60-2C20H21NO3
- Cox-1-IN-11369503-03-6C20H21NO3
- Benzyl 2-[(4-methoxyphenyl)methyl]-2,5-dihydropyrrole-1-carboxylate24064-16-2C20H21NO3
- 1-[4-(4-tert-Butylphenoxy)phenyl]pyrrolidine-2,5-dione667407-64-9C20H21NO3
- 5-Ethyl-N-[(4-methoxyphenyl)methyl]-3-methyl-1-benzofuran-2-carboxamide714261-51-5C20H21NO3
- Methyl 4-(4-methylbenzoyl)-1-phenyl-3-pyrrolidinecarboxylate400087-28-7C20H21NO3
- 2-(6,7-Dimethyl-1-benzofuran-3-yl)-N-(4-ethoxyphenyl)acetamide880406-25-7C20H21NO3
- Butyl 7-(benzyloxy)-1H-indole-2-carboxylate84639-35-0C20H21NO3
- 1-(4-Methoxyphenyl)-1-(4-morpholinophenyl)prop-2-yn-1-ol255377-08-3C20H21NO3
- 2-(4,6-Dimethyl-1-benzofuran-3-yl)-N-(4-ethoxyphenyl)acetamide866238-39-3C20H21NO3
- (Cyclopropylcarbamoyl)(phenyl)methyl 3,5-dimethylbenzoate923840-45-3C20H21NO3
- (2S,3aS,7aS)-1-(Naphthalene-2-carbonyl)-octahydro-1H-indole-2-carboxylic acid2173637-80-2C20H21NO3
- 1-[([1,1'-Biphenyl]-4-carbonyl)amino]cyclohexane-1-carboxylic acid652172-32-2C20H21NO3
- 1-(3-Methylbenzoyl)-4-phenylpiperidine-4-carboxylic acid1053959-53-7C20H21NO3
- 3-Methyl-4-[4-(piperidine-1-carbonyl)phenyl]benzoic acid1261915-96-1C20H21NO3
- 2-Methyl-3-[4-(piperidine-1-carbonyl)phenyl]benzoic acid1261981-57-0C20H21NO3
- 5-Methyl-2-[4-(piperidine-1-carbonyl)phenyl]benzoic acid1261901-61-4C20H21NO3
- Olopatadine impurity 54109293-23-4C20H21NO3
- 3-{(S)-[4-(Hydroxymethyl)phenyl][(oxan-2-yl)oxy]methyl}benzonitrile889118-14-3C20H21NO3
- Benzyl 4-benzoylpiperidine-1-carboxylate922504-27-6C20H21NO3
- Benzyl 7,9-dimethyl-5-oxo-2,3,4,5-tetrahydro-1H-benzo[b]azepine-1-carboxylate1259393-23-1C20H21NO3
- 1-(Hexylamino)-4-hydroxyanthracene-9,10-dione63768-04-7C20H21NO3
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 (E)-N-(1,3-Benzodioxol-5-ylmethyl)-3-(4-propan-2-ylphenyl)prop-2-enamide, 4-(((4-Ethoxyphenyl)amino)methyl)-7,8-dimethyl-2H-chromen-2-one, Butyl 3-cinnamamidobenzoate. 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.