Molecular formula
C21H19NO4
262 compounds have this formula on CompoundList.
- Molar mass
- 349.39g/mol
- Monoisotopic mass
- 349.1314Da
- Atoms
- 45
- Elements
- 4
- Rings plus double bonds
- 13
The formula C21H19NO4 describes a molecule made of 21 carbon atoms, 19 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 × 2172.19%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 195.48%1.008 × 19 = 19.152 g/mol
- N Nitrogen × 14.01%14.007 × 1 = 14.007 g/mol
- O Oxygen × 418.32%15.999 × 4 = 63.996 g/mol
Look up another formula
Compounds with the formula C21H19NO4
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 201 to 262 of 262 compounds
![(1S,4S)-4-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)cyclopent-2-ene-1-carboxylic acid chemical structure, C21H19NO4, CAS 2639377-73-2](/s/IWMUNNGMJRKNSV-ZIAGYGMSSA-N.svg)
(1S,4S)-4-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)cyclopent-2-ene-1-carboxylic acid
CAS 2639377-73-2C21H19NO4
Dimethyl 3-methyl-1,5-diphenyl-1H-pyrrole-2,4-dicarboxylate
CAS 62100-96-3C21H19NO4
![2-[(2-Naphthalen-1-yloxyacetyl)amino]-3-phenylpropanoic acid chemical structure, C21H19NO4](/s/AYUNJPZQDWWKDG-UHFFFAOYSA-N.svg)
2-[(2-Naphthalen-1-yloxyacetyl)amino]-3-phenylpropanoic acid
C21H19NO4
3-(Quinolin-3-yl)-1-(3,4,5-trimethoxyphenyl)prop-2-en-1-one
CAS 914383-95-2C21H19NO4
3-(Quinolin-2-yl)-1-(2,3,4-trimethoxyphenyl)prop-2-en-1-one
CAS 914383-92-9C21H19NO4
(S)-Naphthalen-2-yl 2-(((benzyloxy)carbonyl)amino)propanoate
C21H19NO4
1-(5-Benzoyl-3-oxo-1-phenyl-2-pyrrolidinyl)-1,3-butanedione
CAS 35307-17-6C21H19NO4
![3-{[(Benzyloxy)carbonyl]amino}-3-(naphthalen-2-yl)propanoic acid chemical structure, C21H19NO4, CAS 773867-52-0](/s/OCGKIJRFPHFYDE-UHFFFAOYSA-N.svg)
3-{[(Benzyloxy)carbonyl]amino}-3-(naphthalen-2-yl)propanoic acid
CAS 773867-52-0C21H19NO4
![(3S)-3-{[(Benzyloxy)carbonyl]amino}-3-(naphthalen-2-yl)propanoic acid chemical structure, C21H19NO4, CAS 1704950-68-4](/s/OCGKIJRFPHFYDE-IBGZPJMESA-N.svg)
(3S)-3-{[(Benzyloxy)carbonyl]amino}-3-(naphthalen-2-yl)propanoic acid
CAS 1704950-68-4C21H19NO4
![(3R)-3-{[(Benzyloxy)carbonyl]amino}-3-(naphthalen-2-yl)propanoic acid chemical structure, C21H19NO4, CAS 1704964-96-4](/s/OCGKIJRFPHFYDE-LJQANCHMSA-N.svg)
(3R)-3-{[(Benzyloxy)carbonyl]amino}-3-(naphthalen-2-yl)propanoic acid
CAS 1704964-96-4C21H19NO4
![(3R)-3-{[(Benzyloxy)carbonyl]amino}-3-(naphthalen-1-yl)propanoic acid chemical structure, C21H19NO4, CAS 1704955-83-8](/s/IZEGSNSZIFHNPV-LJQANCHMSA-N.svg)
(3R)-3-{[(Benzyloxy)carbonyl]amino}-3-(naphthalen-1-yl)propanoic acid
CAS 1704955-83-8C21H19NO4
![3-{[(Benzyloxy)carbonyl]amino}-3-(naphthalen-1-yl)propanoic acid chemical structure, C21H19NO4, CAS 773867-51-9](/s/IZEGSNSZIFHNPV-UHFFFAOYSA-N.svg)
3-{[(Benzyloxy)carbonyl]amino}-3-(naphthalen-1-yl)propanoic acid
CAS 773867-51-9C21H19NO4
![(3S)-3-{[(Benzyloxy)carbonyl]amino}-3-(naphthalen-1-yl)propanoic acid chemical structure, C21H19NO4, CAS 1704967-03-2](/s/IZEGSNSZIFHNPV-IBGZPJMESA-N.svg)
(3S)-3-{[(Benzyloxy)carbonyl]amino}-3-(naphthalen-1-yl)propanoic acid
CAS 1704967-03-2C21H19NO4
![Spiro[4H-1-benzopyran-4,2a(2)-[2H]indene]-3-carbonitrile, 1a(2),2,3,3a(2),5,6,7,8-octahydro-2,7,7-trimethyl-1a(2),3a(2),5-trioxo- chemical structure, C21H19NO4, CAS 1188263-99-1](/s/QFDHFLDGVSCKMA-UHFFFAOYSA-N.svg)
Spiro[4H-1-benzopyran-4,2a(2)-[2H]indene]-3-carbonitrile, 1a(2),2,3,3a(2),5,6,7,8-octahydro-2,7,7-trimethyl-1a(2),3a(2),5-trioxo-
CAS 1188263-99-1C21H19NO4
![Benzyl 3-benzyl-2,4-dioxo-3-azabicyclo[3.2.0]heptane-6-carboxylate chemical structure, C21H19NO4, CAS 2138273-08-0](/s/HBACLYYQGKFQNE-UHFFFAOYSA-N.svg)
Benzyl 3-benzyl-2,4-dioxo-3-azabicyclo[3.2.0]heptane-6-carboxylate
CAS 2138273-08-0C21H19NO4
![rac-(1R,5R)-2-{[(9H-fluoren-9-yl)methoxy]carbonyl}-2-azabicyclo[3.1.0]hexane-5-carboxylic acid chemical structure, C21H19NO4, CAS 2219376-27-7](/s/PTWAFEVVLJLSPQ-WIYYLYMNSA-N.svg)
rac-(1R,5R)-2-{[(9H-fluoren-9-yl)methoxy]carbonyl}-2-azabicyclo[3.1.0]hexane-5-carboxylic acid
CAS 2219376-27-7C21H19NO4
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-(2-methylphenyl)cyclopentane-1-carboxylate
CAS 2248310-95-2C21H19NO4
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(2,2-dimethyl-1-phenylcyclopropyl)acetate
CAS 2248394-86-5C21H19NO4
![1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 4-[4-(propan-2-yl)phenyl]but-3-enoate chemical structure, C21H19NO4, CAS 2248418-57-5](/s/RDVYYTXWYWZINX-AATRIKPKSA-N.svg)
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 4-[4-(propan-2-yl)phenyl]but-3-enoate
CAS 2248418-57-5C21H19NO4
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(3,4-dimethyl-2,3-dihydro-1H-inden-1-yl)acetate
CAS 2248326-62-5C21H19NO4
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 4-cyclohexylbenzoate
CAS 2248322-12-3C21H19NO4
![1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-[4-(propan-2-yl)phenyl]cyclopropane-1-carboxylate chemical structure, C21H19NO4, CAS 2248370-85-4](/s/MIYHBXSPBTYIQD-UHFFFAOYSA-N.svg)
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-[4-(propan-2-yl)phenyl]cyclopropane-1-carboxylate
CAS 2248370-85-4C21H19NO4
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(1-phenylcyclopentyl)acetate
CAS 2248280-12-6C21H19NO4
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-phenylhept-6-enoate
CAS 2248352-46-5C21H19NO4
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-(3-methylphenyl)cyclopentane-1-carboxylate2248397-42-2C21H19NO4
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 4-phenylcyclohexane-1-carboxylate2248350-01-6C21H19NO4
- 3-[4-(2-Phenylethynyl)phenyl]-2-{[(prop-2-en-1-yloxy)carbonyl]amino}propanoic acid2803819-75-0C21H19NO4
- (2E,4E)-6-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)hexa-2,4-dienoic acid2169787-97-5C21H19NO4
- 2-{[(9H-Fluoren-9-yl)methoxy]carbonyl}-2-azabicyclo[3.1.0]hexane-6-carboxylic acid2137684-69-4C21H19NO4
- (1S)-2-{[(9H-Fluoren-9-yl)methoxy]carbonyl}-2-azabicyclo[3.1.0]hexane-1-carboxylic acid2137426-59-4C21H19NO4
- (1R,3R,5R)-2-{[(9H-Fluoren-9-yl)methoxy]carbonyl}-2-azabicyclo[3.1.0]hexane-3-carboxylic acid2219354-07-9C21H19NO4
- 2-{[(9H-Fluoren-9-yl)methoxy]carbonyl}-2-azabicyclo[2.1.1]hexane-4-carboxylic acid2344685-89-6C21H19NO4
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-ethyl-1,2,3,4-tetrahydronaphthalene-1-carboxylate2248331-31-7C21H19NO4
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 4-(4-cyclopropylphenyl)butanoate2248355-37-3C21H19NO4
- 1-{[(9H-Fluoren-9-yl)methoxy]carbonyl}-1,2,3,6-tetrahydropyridine-2-carboxylic acid2567497-96-3C21H19NO4
- 4-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)spiro[2.2]pentane-1-carboxylic acid2580235-27-2C21H19NO4
- 4-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-4-methylpent-2-ynoic acid2580210-79-1C21H19NO4
- (3Z)-3-Ethylidene-1-{[(9H-fluoren-9-yl)methoxy]carbonyl}azetidine-2-carboxylic acid2580295-65-2C21H19NO4
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 4,4-dimethyl-1,2,3,4-tetrahydronaphthalene-1-carboxylate2248312-40-3C21H19NO4
- rac-(1R,4S,5R)-2-{[(9H-fluoren-9-yl)methoxy]carbonyl}-2-azabicyclo[2.1.1]hexane-5-carboxylic acid2580097-90-9C21H19NO4
- (1R,4S,5S)-2-{[(9H-Fluoren-9-yl)methoxy]carbonyl}-2-azabicyclo[2.1.1]hexane-5-carboxylic acid2639390-47-7C21H19NO4
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-benzylcyclopentane-1-carboxylate2248293-14-1C21H19NO4
- Benzyl N-[4-(5-ethylfuran-2-carbonyl)phenyl]carbamate2680808-16-4C21H19NO4
- Benzyl N-{4-[4-(hydroxymethyl)phenoxy]phenyl}carbamate2680753-76-6C21H19NO4
- (9H-Fluoren-9-yl)methyl N-{[5-(hydroxymethyl)furan-2-yl]methyl}carbamate2764001-34-3C21H19NO4
- (9H-Fluoren-9-yl)methyl N-[2-(furan-3-yl)-2-hydroxyethyl]carbamate2763964-75-4C21H19NO4
- (9H-Fluoren-9-yl)methyl N-[1-(furan-2-yl)-2-hydroxyethyl]carbamate2764018-81-5C21H19NO4
- 3-({[(9H-Fluoren-9-yl)methoxy]carbonyl}(prop-2-yn-1-yl)amino)propanoic acid2763911-82-4C21H19NO4
- (9H-Fluoren-9-yl)methyl N-[2-(furan-2-yl)-2-hydroxyethyl]carbamate2763912-89-4C21H19NO4
- (9H-Fluoren-9-yl)methyl 6-oxo-5-oxa-2-azaspiro[3.4]octane-2-carboxylate2913422-83-8C21H19NO4
- Methyl 5-amino-2-(4-(benzyloxy)phenoxy)benzoate3078325-24-0C21H19NO4
- (4-Nitronaphthalen-2-yl)methyl 4-phenylbutanoate766546-25-2C21H19NO4
- Ethyl (R)-8-methyl-1-oxo-3-phenyl-2,3-dihydro-1H-benzo[4,5]oxazolo[3,2-a]pyridine-4-carboxylate2760985-75-7C21H19NO4
- Ethyl (R)-7-methyl-1-oxo-3-phenyl-2,3-dihydro-1H-benzo[4,5]oxazolo[3,2-a]pyridine-4-carboxylate2760985-79-1C21H19NO4
- Ethyl (R)-1-oxo-3-(m-tolyl)-2,3-dihydro-1H-benzo[4,5]oxazolo[3,2-a]pyridine-4-carboxylate2760985-59-7C21H19NO4
- Ethyl (2S,3R)-2-methyl-1-oxo-3-phenyl-2,3-dihydro-1H-benzo[4,5]oxazolo[3,2-a]pyridine-4-carboxylate2760985-84-8C21H19NO4
- Ethyl (R)-1-oxo-3-(o-tolyl)-2,3-dihydro-1H-benzo[4,5]oxazolo[3,2-a]pyridine-4-carboxylate2760985-66-6C21H19NO4
- (2S)-5-(9H-Fluoren-9-ylmethoxycarbonyl)-5-azaspiro[2.3]hexane-2-carboxylic acid2382513-64-4C21H19NO4
- (2R)-5-(9H-Fluoren-9-ylmethoxycarbonyl)-5-azaspiro[2.3]hexane-2-carboxylic acid2381122-93-4C21H19NO4
- rac-1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl (1R,2S)-2-phenylcyclohexane-1-carboxylate2248276-75-5C21H19NO4
- rac-(3aR,4S,9bS)-5-[(benzyloxy)carbonyl]-3H,3aH,4H,5H,9bH-cyclopenta[c]quinoline-4-carboxylic acid2803406-61-1C21H19NO4
- Naphthalen-2-yl (2R)-2-(phenylmethoxycarbonylamino)propanoateC21H19NO4
Frequently asked questions
What is the molar mass of C21H19NO4?
The molar mass of C21H19NO4 is 349.39 g/mol, calculated from standard atomic weights for 21 carbon atoms, 19 hydrogen atoms, 1 nitrogen atom and 4 oxygen atoms. The monoisotopic mass is 349.1314 Da.
How many compounds have the formula C21H19NO4?
CompoundList lists 262 compounds with the molecular formula C21H19NO4, including (1S,4S)-4-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)cyclopent-2-ene-1-carboxylic acid, Dimethyl 3-methyl-1,5-diphenyl-1H-pyrrole-2,4-dicarboxylate, 2-[(2-Naphthalen-1-yloxyacetyl)amino]-3-phenylpropanoic acid. 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 C21H19NO4?
C21H19NO4 has a degree of unsaturation of 13. 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.