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 1 to 100 of 262 compounds
Dihydrochelerythrine
CAS 6880-91-7C21H19NO4
Cinmetacin
CAS 881743-37-9C21H19NO4
Dihydronitidine
CAS 13063-06-4C21H19NO4
![Methyl (5E)-5-[(4-hydroxyphenyl)methylidene]-2-methyl-1-(4-methylphenyl)-4-oxopyrrole-3-carboxylate chemical structure, C21H19NO4, CAS 364754-60-9](/s/CKDJFQXSGGYYSF-LDADJPATSA-N.svg)
Methyl (5E)-5-[(4-hydroxyphenyl)methylidene]-2-methyl-1-(4-methylphenyl)-4-oxopyrrole-3-carboxylate
CAS 364754-60-9C21H19NO4
4-Pentynoic acid, 2-(((9H-fluoren-9-ylmethoxy)carbonyl)amino)-2-methyl-, (2R)-
CAS 1198791-65-9C21H19NO4
![(2S)-2-[[(9H-Fluoren-9-ylmethoxy)carbonyl]amino]-2-methyl-4-pentynoic acid chemical structure, C21H19NO4, CAS 1198791-58-0](/s/ZXOKSWZUJXKQCQ-NRFANRHFSA-N.svg)
(2S)-2-[[(9H-Fluoren-9-ylmethoxy)carbonyl]amino]-2-methyl-4-pentynoic acid
CAS 1198791-58-0C21H19NO4
Fmoc-(R)-3-Amino-5-hexynoic acid
CAS 332064-94-5C21H19NO4
![2-{[(9H-Fluoren-9-yl)methoxy]carbonyl}-2-azabicyclo[2.1.1]hexane-1-carboxylic acid chemical structure, C21H19NO4, CAS 1936396-62-1](/s/JMVXIHLJJFHMKW-UHFFFAOYSA-N.svg)
2-{[(9H-Fluoren-9-yl)methoxy]carbonyl}-2-azabicyclo[2.1.1]hexane-1-carboxylic acid
CAS 1936396-62-1C21H19NO4
Cbz-D-2-Naphthylalanine
CAS 143218-10-4C21H19NO4
![(2R)-2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)hex-5-ynoic acid chemical structure, C21H19NO4, CAS 1234692-66-0](/s/IISRBJULQYVYGV-LJQANCHMSA-N.svg)
(2R)-2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)hex-5-ynoic acid
CAS 1234692-66-0C21H19NO4
(1S,2S,5R)-3-(((9H-Fluoren-9-yl)methoxy)carbonyl)-3-azabicyclo(3.1.0)hexane-2-carboxylic acid
CAS 854113-43-2C21H19NO4
![Ethyl 5,6,8,9-tetrahydro-6,6-dimethyl-8,9-dioxobenzo[f]pyrrolo[2,1-a]isoquinoline-10-carboxylate chemical structure, C21H19NO4, CAS 220598-57-2](/s/ROEZPYLDSODIHV-UHFFFAOYSA-N.svg)
Ethyl 5,6,8,9-tetrahydro-6,6-dimethyl-8,9-dioxobenzo[f]pyrrolo[2,1-a]isoquinoline-10-carboxylate
CAS 220598-57-2C21H19NO4
![(1S,3S,5S)-2-{[(9H-Fluoren-9-yl)methoxy]carbonyl}-2-azabicyclo[3.1.0]hexane-3-carboxylic acid chemical structure, C21H19NO4, CAS 1932109-93-7](/s/XOOXAQNBHBESGV-NXXSPTCGSA-N.svg)
(1S,3S,5S)-2-{[(9H-Fluoren-9-yl)methoxy]carbonyl}-2-azabicyclo[3.1.0]hexane-3-carboxylic acid
CAS 1932109-93-7C21H19NO4
![4-Methyl-7-[2-(2-methylindolinyl)-2-oxoethoxy]chromen-2-one chemical structure, C21H19NO4, CAS 380453-93-0](/s/JUTXZDAOFOHLJW-UHFFFAOYSA-N.svg)
4-Methyl-7-[2-(2-methylindolinyl)-2-oxoethoxy]chromen-2-one
CAS 380453-93-0C21H19NO4
![3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)bicyclo[1.1.1]pentane-1-carboxylic acid chemical structure, C21H19NO4, CAS 676371-66-7](/s/XMTSSOBUBCTQKW-UHFFFAOYSA-N.svg)
3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)bicyclo[1.1.1]pentane-1-carboxylic acid
CAS 676371-66-7C21H19NO4
(1R,5S,6R)-3-(((9H-Fluoren-9-yl)methoxy)carbonyl)-3-azabicyclo(3.1.0)hexane-6-carboxylic acid
CAS 1932558-35-4C21H19NO4
rac-(1R,2S,5S)-3-(((9H-Fluoren-9-yl)methoxy)carbonyl)-3-azabicyclo(3.1.0)hexane-2-carboxylic acid
CAS 886846-30-6C21H19NO4
Oxarbazole
CAS 35578-20-2C21H19NO4
![[2-(2,5-Dimethylphenyl)-2-oxoethyl] 5-methyl-3-phenyl-1,2-oxazole-4-carboxylate chemical structure, C21H19NO4, CAS 804493-28-5](/s/OLMJTDGSRPVXPR-UHFFFAOYSA-N.svg)
[2-(2,5-Dimethylphenyl)-2-oxoethyl] 5-methyl-3-phenyl-1,2-oxazole-4-carboxylate
CAS 804493-28-5C21H19NO4
Fmoc-1,2,5,6-tetrahydropyridine-3-carboxylic acid
CAS 851292-43-8C21H19NO4
1-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)cyclopent-3-ene-1-carboxylic acid
CAS 2219369-66-9C21H19NO4
![(1S,5R)-2-{[(9H-Fluoren-9-yl)methoxy]carbonyl}-2-azabicyclo[3.1.0]hexane-1-carboxylic acid chemical structure, C21H19NO4, CAS 1932320-54-1](/s/TVPFEZFSACZZSR-ASSNKEHSSA-N.svg)
(1S,5R)-2-{[(9H-Fluoren-9-yl)methoxy]carbonyl}-2-azabicyclo[3.1.0]hexane-1-carboxylic acid
CAS 1932320-54-1C21H19NO4
Benzyl (2S)-2-(furan-2-carbonylamino)-3-phenylpropanoate
CAS 956958-69-3C21H19NO4
(R)-2-(Fmoc-amino)-2-methyl-4-pentynoic acid
CAS 1823659-44-4C21H19NO4
- 5-(((9H-Fluoren-9-yl)methoxy)carbonyl)-5-azaspiro(2.3)hexane-1-carboxylic acid1934633-43-8C21H19NO4
- 9-(4-Isopropylphenyl)-6,9-dihydro[1,3]dioxolo[4,5-g]furo[3,4-b]quinolin-8(5H)-one866138-53-6C21H19NO4
- [2-[Ethyl(naphthalen-1-yl)amino]-2-oxoethyl] 4-hydroxybenzoate386731-30-2C21H19NO4
- 2-{[(9H-Fluoren-9-yl)methoxy]carbonyl}-2-azabicyclo[3.1.0]hexane-4-carboxylic acid2137787-86-9C21H19NO4
- [2-[Ethyl(naphthalen-1-yl)amino]-2-oxoethyl] 2-hydroxybenzoate387835-91-8C21H19NO4
- rac-(1R,5S)-3-(((9H-Fluoren-9-yl)methoxy)carbonyl)-3-azabicyclo(3.1.0)hexane-1-carboxylic acid2138240-30-7C21H19NO4
- 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)hexa-4,5-dienoic acid2418650-69-6C21H19NO4
- cis-2-(((9H-Fluoren-9-yl)methoxy)carbonylamino)cyclopent-3-ene-1-carboxylic acid1212278-30-2C21H19NO4
- 4-[3-(Ethoxycarbonyl)-2-methyl-5-phenyl-1H-pyrrol-1-yl]benzoic acid361158-00-1C21H19NO4
- 8-Hydroxy-7-(1-piperidylmethyl)benzofuro[3,2-c]chromen-6-one2221801-50-7C21H19NO4
- 2-{[(9H-Fluoren-9-yl)methoxy]carbonyl}-2-azabicyclo[2.1.1]hexane-3-carboxylic acid1176024-56-8C21H19NO4
- (1R,5S)-2-{[(9H-Fluoren-9-yl)methoxy]carbonyl}-2-azabicyclo[3.1.0]hexane-1-carboxylic acid2869870-20-0C21H19NO4
- 8-Allyl-N-(4-ethoxyphenyl)-2-oxo-2H-chromene-3-carboxamide325802-66-2C21H19NO4
- N-(2-(Benzo[d][1,3]dioxol-5-yloxy)ethyl)-2-(naphthalen-1-yl)acetamide1170377-30-6C21H19NO4
- 3-(4-Methoxyphenyl)-3,4,8,9-tetrahydro-2H-cyclopenta[3,4]chromeno[8,7-e][1,3]oxazin-6(7H)-one307543-99-3C21H19NO4
- 2-Propenoic acid, 3-(3,4-dimethoxyphenyl)-, 2-methyl-8-quinolinyl ester, (2E)-210890-81-6C21H19NO4
- 2-[(9-Oxofluoren-2-yl)carbamoyl]cyclohexane-1-carboxylic acid6341-15-7C21H19NO4
- 8-Hydroxy-9-(piperidin-1-ylmethyl)-[1]benzofuro[3,2-c]chromen-6-one2345638-96-0C21H19NO4
- 9-Cyclopropyl-3-(4-methoxyphenyl)-9,10-dihydrochromeno[8,7-e][1,3]oxazin-4(8H)-one946235-45-6C21H19NO4
- 4H-1-Benzopyran-4-one, 2-[6-(diethylamino)-2-benzofuranyl]-3-hydroxy-386736-84-1C21H19NO4
- (E)-Ethyl 4-(3-(2H-chromen-3-yl)acrylamido)benzoate887347-23-1C21H19NO4
- N-(2-Cyclopropyl-2-hydroxy-2-phenylethyl)-4-oxo-4H-chromene-2-carboxamide1421469-10-4C21H19NO4
- 4-(2-(3,4-Dihydroisoquinolin-2(1H)-yl)-2-oxoethyl)-7-methoxy-2H-chromen-2-one919761-47-0C21H19NO4
- N-[2-Hydroxy-2-(5-methylfuran-2-yl)ethyl]-9H-xanthene-9-carboxamide1226457-92-6C21H19NO4
- N-Acetyltyrosine 1-naphthyl ester71258-95-2C21H19NO4
- 2,3,8,9-Tetramethoxybenzo(c)phenanthridine15462-10-9C21H19NO4
- 2 suppliersFmoc-L-homopropargylglycine942518-21-0C21H19NO4
- 2 suppliersZ-L-2-Nal-OH65365-16-4C21H19NO4
- 1 suppliers(S)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)hex-5-ynoic acid1217669-02-7C21H19NO4
- 2 suppliers(1S,4R)-4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)cyclopent-2-enecarboxylic acid220497-64-3C21H19NO4
- 1 suppliersZ-1-Nal-OH65365-15-3C21H19NO4
- 4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)cyclopent-2-ene-1-carboxylic acid929976-63-6C21H19NO4
- 2 suppliers(1R,4S)-4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)cyclopent-2-enecarboxylic acid220497-65-4C21H19NO4
- 7-Methoxy-4-(2-(2-methylindolin-1-yl)-2-oxoethyl)-2H-chromen-2-one919861-89-5C21H19NO4
- (6-Phenylpyridin-2-yl)(3,4,5-trimethoxyphenyl)methanone1311195-61-5C21H19NO4
- Ochotensidine119777-71-8C21H19NO4
- 1-(4-Methoxyphenyl)-1-oxopropan-2-yl 2-methylquinoline-4-carboxylate667892-46-8C21H19NO4
- 3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)hex-5-ynoic acid1823658-25-8C21H19NO4
- Z-Ala-Beta-Naphthyl ester60894-49-7C21H19NO4
- 2-(2-Ethoxy-4-formylphenoxy)-N-(1-naphthyl)acetamide486993-05-9C21H19NO4
- Cbz-3-(1-naphthyl)-D-Ala96402-43-6C21H19NO4
- N-Fmoc-N-methyl-(S)-2-propargylglycine2550906-64-2C21H19NO4
- 2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)hex-5-ynoic acid1699475-40-5C21H19NO4
- 4-(Bis(4-methoxyphenyl)amino)benzoic acid704914-80-7C21H19NO4
- 3-[2-(4-Ethoxyphenyl)-2-oxoethyl]-3-hydroxy-1-(prop-2-yn-1-yl)-1,3-dihydro-2H-indol-2-one421584-47-6C21H19NO4
- Fmoc-trans-3-azabicyclo[3.1.0]hexane-2-carboxylicacid1219181-14-2C21H19NO4
- 4-[2-[4-(4-Nitrophenoxy)phenyl]propan-2-yl]phenol106461-00-1C21H19NO4
- Z-3-(1-Naphthyl)-L-alanine108327-31-7C21H19NO4
- Methyl 5,6-Bis(benzyloxy)nicotinate2070896-62-5C21H19NO4
- 2-Methoxy-6-oxo-5,6,7,8,9,10-hexahydrophenanthridin-8-yl benzoate37046-50-7C21H19NO4
- N-Benzyl-2-({4-oxo-1H,2H,3H,4H-cyclopenta[c]chromen-7-yl}oxy)acetamide321687-54-1C21H19NO4
- (3aS,4R,9bR)-4-[4-(Methoxycarbonyl)phenyl]-3a,4,5,9b-tetrahydro-3H-cyclopenta[c]quinoline-8-carboxylic acid1217642-73-3C21H19NO4
- Methyl 2-[3-(5-phenylfuran-2-yl)propanamido]benzoate924818-47-3C21H19NO4
- (1R,3S,5R)-2-[(9H-Fluoren-9-ylmethoxy)carbonyl]-2-azabicyclo[3.1.0]hexane-3-carboxylic acid1983904-18-2C21H19NO4
- Ethyl 4-{[(naphthalen-1-yloxy)acetyl]amino}benzoate420823-16-1C21H19NO4
- (Z)-3-Oxo-2-(pyridin-4-ylmethylene)-2,3-dihydrobenzofuran-6-yl cyclohexanecarboxylate622791-50-8C21H19NO4
- 1-(4-Isopropoxyphenyl)-2-methyl-1,2-dihydrochromeno[2,3-c]pyrrole-3,9-dione850826-06-1C21H19NO4
- N-(3,5-Dimethoxyphenyl)-4-phenoxybenzamide852846-73-2C21H19NO4
- 2-((2-Methoxyethyl)amino)-8-methyl-3-phenyl-4H-furo[3,2-c]chromen-4-one938031-03-9C21H19NO4
- 1,3-Dioxane-4,6-dione, 5-(1H-indol-3-ylphenylmethyl)-2,2-dimethyl-67996-11-6C21H19NO4
- N-[2-(4-Methoxybenzoyl)-3-methyl-1-benzofuran-6-yl]cyclopropanecarboxamide929505-22-6C21H19NO4
- (2Z)-8-Cyclopropyl-2-(4-methoxybenzylidene)-8,9-dihydro-7H-furo[2,3-f][1,3]benzoxazin-3(2H)-one946293-29-4C21H19NO4
- 3-[3-(Ethoxycarbonyl)-2-methyl-5-phenyl-1H-pyrrol-1-yl]benzoic acid879329-74-5C21H19NO4
- Fmoc-(S)-2-aminohex-4-ynoic acid859841-96-6C21H19NO4
- 2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)hex-4-ynoic acid859842-09-4C21H19NO4
- (6S)-5-(9H-Fluoren-9-ylmethoxycarbonyl)-5-azaspiro[2.3]hexane-6-carboxylic acid2387568-16-1C21H19NO4
- 5H-1,3-Dioxolo(4,5-b)carbazole, 6,7,8,9-tetrahydro-5-(p-anisoyl)-50332-26-8C21H19NO4
- N-(3,4-Dimethoxyphenyl)-3-phenoxybenzamide307325-95-7C21H19NO4
- 2-(4-Methoxyphenoxy)-N-(4-phenoxyphenyl)acetamide590399-91-0C21H19NO4
- 3,4-Dimethoxy-N-(4-phenoxyphenyl)benzamide352217-47-1C21H19NO4
- 3,4-Dimethoxy-N-(2-phenoxyphenyl)benzamide325804-55-5C21H19NO4
- (Z)-3-Oxo-2-(pyridin-3-ylmethylene)-2,3-dihydrobenzofuran-6-yl cyclohexanecarboxylate622791-20-2C21H19NO4
- Hexyl 6-oxo-6H-anthra[1,9-cd]isoxazole-3-carboxylate95310-37-5C21H19NO4
- N-(3-Acetylphenyl)-5-[(4-methylphenoxy)methyl]furan-2-carboxamide890615-05-1C21H19NO4
- 2-((2-Methoxyethyl)amino)-6-methyl-3-phenyl-4H-furo[3,2-c]chromen-4-one938037-05-9C21H19NO4
- Propyl 4-(1-benzoxepine-4-amido)benzoate950333-99-0C21H19NO4
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 Dihydrochelerythrine, Cinmetacin, Dihydronitidine. 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.