Molecular formula
C20H21NO4
463 compounds have this formula on CompoundList.
- Molar mass
- 339.39g/mol
- Monoisotopic mass
- 349.1633Da
- Atoms
- 46
- Elements
- 4
- Rings plus double bonds
- 11
The formula C20H21NO4 describes a molecule made of 20 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom and 4 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 × 2070.78%12.011 × 20 = 240.220 g/mol
- H Hydrogen × 216.24%1.008 × 21 = 21.168 g/mol
- N Nitrogen × 14.13%14.007 × 1 = 14.007 g/mol
- O Oxygen × 418.86%15.999 × 4 = 63.996 g/mol
Look up another formula
Compounds with the formula C20H21NO4
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 463 compounds
Papaverine
CAS 58-74-2C20H21NO4
(±)-Tetrahydroberberine
CAS 522-97-4C20H21NO4
(R)-Canadine
CAS 2086-96-6C20H21NO4
(S)-Canadine
CAS 5096-57-1C20H21NO4
Nantenine
CAS 2565-01-7C20H21NO4
(+)-Dicentrine
CAS 517-66-8C20H21NO4
(-)-Dicentrine
CAS 28832-07-7C20H21NO4
![Ethyl 6-{2,4-dioxo-3-azatricyclo[7.3.1.0^{5,13}]trideca-1(13),5,7,9,11-pentaen-3-yl}hexanoate chemical structure, C20H21NO4, CAS 300815-53-6](/s/LKTNERYONFVSNC-UHFFFAOYSA-N.svg)
Ethyl 6-{2,4-dioxo-3-azatricyclo[7.3.1.0^{5,13}]trideca-1(13),5,7,9,11-pentaen-3-yl}hexanoate
CAS 300815-53-6C20H21NO4
N-((9H-Fluoren-9-ylmethoxy)carbonyl)-L-valine
CAS 126727-02-4C20H21NO4
Crebanine
CAS 25127-29-1C20H21NO4
Phenicaberan
CAS 95696-19-8C20H21NO4
FMOC-L-valine
CAS 68858-20-8C20H21NO4
![(2R)-2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-3-methylbutanoic acid chemical structure, C20H21NO4, CAS 84624-17-9](/s/UGNIYGNGCNXHTR-GOSISDBHSA-N.svg)
(2R)-2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-3-methylbutanoic acid
CAS 84624-17-9C20H21NO4
![(8'aR)-1'-Acetyl-2',3',8',8'a-tetrahydro-5',6'-dimethoxyspiro[2,5-cyclohexadiene-1,7'(1'H)-cyclopent[ij]isoquinolin]-4-one chemical structure, C20H21NO4, CAS 4880-87-9](/s/QHDTTYCECGBECX-UHFFFAOYSA-N.svg)
(8'aR)-1'-Acetyl-2',3',8',8'a-tetrahydro-5',6'-dimethoxyspiro[2,5-cyclohexadiene-1,7'(1'H)-cyclopent[ij]isoquinolin]-4-one
CAS 4880-87-9C20H21NO4
![4-[(2,6-Dimethylmorpholin-4-yl)methyl]-3-hydroxybenzo[c]chromen-6-one chemical structure, C20H21NO4, CAS 431892-75-0](/s/PDSWZIXYNCJANZ-UHFFFAOYSA-N.svg)
4-[(2,6-Dimethylmorpholin-4-yl)methyl]-3-hydroxybenzo[c]chromen-6-one
CAS 431892-75-0C20H21NO4
5-(((9H-Fluoren-9-ylmethoxy)carbonyl)amino)pentanoic acid
CAS 123622-48-0C20H21NO4
N-(9-Fluorenylmethoxycarbonyl)-DL-norvaline
CAS 144701-21-3C20H21NO4
amino}acetic acid chemical structure, C20H21NO4, CAS 498575-09-0](/s/PMFFZLSLIXEBNG-UHFFFAOYSA-N.svg)
2-{[(9H-Fluoren-9-ylmethoxy)carbonyl](propan-2-yl)amino}acetic acid
CAS 498575-09-0C20H21NO4
(2R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)pentanoic acid
CAS 144701-24-6C20H21NO4
4-((((9H-Fluoren-9-yl)methoxy)carbonyl)(methyl)amino)butanoic acid
CAS 221124-57-8C20H21NO4
![(2S)-2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}(methyl)amino)butanoic acid chemical structure, C20H21NO4, CAS 1310575-53-1](/s/WBNLTUKBCCEZSD-SFHVURJKSA-N.svg)
(2S)-2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}(methyl)amino)butanoic acid
CAS 1310575-53-1C20H21NO4
![3-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-2,2-dimethylpropanoic acid chemical structure, C20H21NO4, CAS 1076197-00-6](/s/YQSADVVFFDZPHI-UHFFFAOYSA-N.svg)
3-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-2,2-dimethylpropanoic acid
CAS 1076197-00-6C20H21NO4
N-Fmoc-(R)-2-(methylamino)butyric acid
CAS 1210830-60-6C20H21NO4
1,2,3,4-Tetrahydro-9,11-dimethoxy-2-methylnaphth(2,1-f)isoquinoline-8,12-diol
CAS 137031-56-2C20H21NO4
- (3R)-3-{[(9H-Fluoren-9-ylmethoxy)carbonyl](methyl)amino}butanoic acid1460306-60-8C20H21NO4
- 1 suppliers3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-methylbutanoic acid244031-65-0C20H21NO4
- 1 suppliers(3R)-3-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)pentanoic acid1353293-73-8C20H21NO4
- (4S)-4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)pentanoic acid1014018-41-7C20H21NO4
- 1 suppliers3-(Ethyl((((9H-fluoren-9-yl)methoxy)carbonyl))amino)propanoic acid172965-67-2C20H21NO4
- 2-(Amino)-2-methylbutanoic acid160885-93-8C20H21NO4
- 1 suppliers6-[(Dimethylamino)methyl]-7-hydroxy-4-(4-methoxyphenyl)-8-methyl-2H-chromen-2-one708213-79-0C20H21NO4
- 1 suppliers(R)-2-(((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)methyl)butanoic acid1217711-57-3C20H21NO4
- N-Fmoc-(S)-3-(methylamino)butanoic acid882183-85-9C20H21NO4
- 2-[2-(3,5-Dimethylphenoxy)acetyl]-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid1008369-07-0C20H21NO4
- Thalictruberine42971-15-3C20H21NO4
- (S)-3-(9H-Fluoren-9-ylmethoxycarbonylamino)-pentanoic acid1303993-81-8C20H21NO4
- Ethyl 7,7-dimethyl-2,5-dioxo-1-phenyl-1,2,5,6,7,8-hexahydroquinoline-3-carboxylate62370-53-0C20H21NO4
- 1-(4-Methoxyphenyl)-3-[4-(propan-2-yloxy)phenyl]pyrrolidine-2,5-dione312585-50-5C20H21NO4
- 9-(2-Propoxyphenyl)-2,3,8,9-tetrahydro[1,4]dioxino[2,3-g]quinolin-7(6H)-one835888-60-3C20H21NO4
- 3 suppliers(3R,4S)-1-Benzoyl-3-(1-ethoxyethoxy)-4-phenylazetidin-2-one201856-53-3C20H21NO4
- 4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)pentanoic acid1343035-80-2C20H21NO4
- [(3-Acetylphenyl)carbamoyl]methyl 2-phenylbutanoate380168-83-2C20H21NO4
- (Z)-2-(Furan-2-ylmethylene)-6-hydroxy-7-((3-methylpiperidin-1-yl)methyl)benzofuran-3(2H)-one1164475-84-6C20H21NO4
- (Z)-2-(Furan-2-ylmethylene)-6-hydroxy-7-((4-methylpiperidin-1-yl)methyl)benzofuran-3(2H)-one1164557-99-6C20H21NO4
- 1-[(4-Methoxyphenyl)methyl]-6-oxo-2-phenylpiperidine-3-carboxylic acid439110-93-7C20H21NO4
- 2-(4-Methoxyphenyl)-1-(4-methylphenyl)-6-oxopiperidine-3-carboxylic acid855715-14-9C20H21NO4
- Ethyl 5-hydroxy-2-methyl-1-(2-phenoxyethyl)indole-3-carboxylate296772-86-6C20H21NO4
- (E)-1-(2,3-Dihydro-1,4-benzodioxin-6-yl)-3-(4-ethoxyanilino)but-2-en-1-one5533-88-0C20H21NO4
- 2-(4-Methoxy-6-methyl-5,6,7,8-tetrahydro-[1,3]dioxolo[4,5-g]isoquinolin-5-yl)-1-phenylethanone2220-06-6C20H21NO4
- (±)-Sinactine38853-67-7C20H21NO4
- Methyl 1-(2-phenoxybenzoyl)piperidine-4-carboxylate349440-81-9C20H21NO4
- Ethyl 2-[4-(4-methylbenzoyl)-3,4-dihydro-2H-1,4-benzoxazin-3-yl]acetate439112-01-3C20H21NO4
- N-(2,5-Dimethoxyphenyl)-2-(4,6-dimethyl-1-benzofuran-3-yl)acetamide714206-27-6C20H21NO4
- 2-(2-Methoxyphenyl)-N-spiro[1,3-benzodioxole-2,1'-cyclopentane]-5-ylacetamide879185-15-6C20H21NO4
- 2-(2-Methoxyphenyl)-1-(4-methylphenyl)-6-oxopiperidine-3-carboxylic acid855715-33-2C20H21NO4
- N-(2,4-Dimethoxyphenyl)-3,5,6-trimethyl-1-benzofuran-2-carboxamide622349-23-9C20H21NO4
- [2-(tert-Butylamino)-2-oxoethyl] 9H-xanthene-9-carboxylate743445-70-7C20H21NO4
- [2-(tert-Butylamino)-2-oxoethyl] 2-benzoylbenzoate736953-49-4C20H21NO4
- [2-(2-Methylpropylamino)-2-oxoethyl] 9H-xanthene-9-carboxylate721911-94-0C20H21NO4
- 2-(4-Acetyl-2-methoxyphenoxy)-1-(3,4-dihydro-1H-isoquinolin-2-yl)ethanone851630-98-3C20H21NO4
- 3-Hydroxy-3-[2-(3-methoxyphenyl)-2-oxoethyl]-1-propyl-1,3-dihydro-2H-indol-2-one689755-52-0C20H21NO4
- [2-(3-Methylanilino)-2-oxoethyl] 2-(2,3-dihydro-1H-inden-5-yloxy)acetate848276-79-9C20H21NO4
- N-Cyclopropyl-3-(2,3,5-trimethyl-7-oxo-7H-furo[3,2-g]chromen-6-yl)propanamide859668-85-2C20H21NO4
- (±)-Dicentrine26110-43-0C20H21NO4
- (3R)-4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-methylbutanoic acid2171164-46-6C20H21NO4
- Glycocitrine I82354-36-7C20H21NO4
- Evoprenine16584-45-5C20H21NO4
- 3-[2-(4-Ethoxyphenyl)-2-oxoethyl]-1-ethyl-3-hydroxy-1,3-dihydro-2H-indol-2-one421584-42-1C20H21NO4
- N-(2,4-Dimethoxyphenyl)-2-(4,6-dimethyl-1-benzofuran-3-yl)acetamide713506-26-4C20H21NO4
- Curcumin 5-8890984-26-6C20H21NO4
- Podocarpamide121880-09-9C20H21NO4
- Clausamine E256222-01-2C20H21NO4
- N-[2-(3,4-Dimethoxyphenyl)ethyl]-3-methyl-1-benzofuran-2-carboxamide381178-75-2C20H21NO4
- N,N-Diethyl-2-(4-methyl-6-oxobenzo[c]chromen-3-yl)oxyacetamide431916-92-6C20H21NO4
- N-(2,3-Dihydro-1,4-benzodioxin-6-yl)-4-phenyloxane-4-carboxamide708989-95-1C20H21NO4
- 2-(3,4-Dimethylphenoxy)-N,N-bis(2-furylmethyl)acetamide874208-54-5C20H21NO4
- 2-(4-Ethylphenoxy)-N,N-bis(2-furylmethyl)acetamide874192-24-2C20H21NO4
- N-(Furan-2-ylmethyl)-N-[(5-methylfuran-2-yl)methyl]-2-(4-methylphenoxy)acetamide874401-38-4C20H21NO4
- 8-((Dimethylamino)methyl)-7-hydroxy-3-(4-methoxyphenyl)-2-methyl-4H-chromen-4-one858764-22-4C20H21NO4
- 8-[(Dimethylamino)methyl]-7-hydroxy-3-(4-methoxyphenyl)-4-methyl-2H-chromen-2-one869080-99-9C20H21NO4
- 11,12-Dimethoxy-7-methyl-6,7,7a,8-tetrahydro-5H-[1,3]benzodioxolo[6,5,4-de]benzo[g]quinoline2490-83-7C20H21NO4
- 8-((Dimethylamino)methyl)-7-hydroxy-3-(2-methoxyphenyl)-2-methyl-4H-chromen-4-one858768-84-0C20H21NO4
- 10,11-Dimethoxy-6,8,13,13a-tetrahydro-5H-[1,3]dioxolo[4,5-g]isoquinolino[3,2-a]isoquinoline6656-19-5C20H21NO4
- Eschscholtzidine6451-67-8C20H21NO4
- 8-((Dimethylamino)methyl)-7-hydroxy-3-(4-methoxyphenyl)-5-methyl-4H-chromen-4-one919727-98-3C20H21NO4
- 3 suppliersFmoc-L-norvaline135112-28-6C20H21NO4
- N-(2,4-Dimethoxyphenyl)-2-(6,7-dimethyl-1-benzofuran-3-yl)acetamide713504-40-6C20H21NO4
- Ethyl 2-[(2-benzyl-1-oxo-1,2,3,4-tetrahydroisoquinolin-5-yl)oxy]acetate850905-36-1C20H21NO4
- (2Z)-7-[(Dimethylamino)methyl]-6-hydroxy-2-(3-methoxybenzylidene)-4-methyl-1-benzofuran-3(2H)-one903852-67-5C20H21NO4
- 5-O-Ethyl 3-O-methyl 2,6-dimethyl-4-(2-phenylethynyl)-1,4-dihydropyridine-3,5-dicarboxylate192052-85-0C20H21NO4
- N-AcetylstepharineC20H21NO4
- 1 suppliersFmoc-N-Me-Aib-OH400779-65-9C20H21NO4
- (Z)-7-((Dimethylamino)methyl)-6-hydroxy-2-(4-methoxybenzylidene)-4-methylbenzofuran-3(2H)-one904008-03-3C20H21NO4
- Haplophylline93710-20-4C20H21NO4
- 1 suppliers(R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-methylbutanoic acid1231709-22-0C20H21NO4
- 1 suppliersFmoc-N-(propyl)-glycine1310680-42-2C20H21NO4
- 1-Hydroxy-3-methoxy-10-methyl-2-(3-methylbut-2-enoxy)acridin-9-one16584-49-9C20H21NO4
- 2 suppliers(S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-methylbutanoic acid857478-30-9C20H21NO4
- N-Fmoc-N-ethyl-L-alanine84000-09-9C20H21NO4
- 3-Benzyl-1-(beta-D-xylopyranosyl)-1H-indole1259933-79-3C20H21NO4
Frequently asked questions
What is the molar mass of C20H21NO4?
The molar mass of C20H21NO4 is 339.39 g/mol, calculated from standard atomic weights for 20 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom and 4 oxygen atoms. The monoisotopic mass is 349.1633 Da.
How many compounds have the formula C20H21NO4?
CompoundList lists 463 compounds with the molecular formula C20H21NO4, including Papaverine, (±)-Tetrahydroberberine, (R)-Canadine. 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 C20H21NO4?
C20H21NO4 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.