Molecular formula
C21H16ClN3O4
48 compounds have this formula on CompoundList.
- Molar mass
- 409.83g/mol
- Monoisotopic mass
- 409.0829Da
- Atoms
- 45
- Elements
- 5
- Rings plus double bonds
- 15
The formula C21H16ClN3O4 describes a molecule made of 21 carbon atoms, 16 hydrogen atoms, 1 chlorine atom, 3 nitrogen atoms 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 × 2161.55%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 163.94%1.008 × 16 = 16.128 g/mol
- Cl Chlorine × 18.65%35.45 × 1 = 35.450 g/mol
- N Nitrogen × 310.25%14.007 × 3 = 42.021 g/mol
- O Oxygen × 415.62%15.999 × 4 = 63.996 g/mol
Look up another formula
Compounds with the formula C21H16ClN3O4
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 48 of 48 compounds
4-(2-Isonicotinoylcarbohydrazonoyl)-2-methoxyphenyl 2-chlorobenzoate
CAS 330567-25-4C21H16ClN3O4
![[2-[5-(4-Chlorophenyl)-3-(furan-2-yl)-3,4-dihydropyrazol-2-yl]-2-oxoethyl] pyridine-3-carboxylate chemical structure, C21H16ClN3O4, CAS 380573-82-0](/s/YRDFSFUZCXIWID-UHFFFAOYSA-N.svg)
[2-[5-(4-Chlorophenyl)-3-(furan-2-yl)-3,4-dihydropyrazol-2-yl]-2-oxoethyl] pyridine-3-carboxylate
CAS 380573-82-0C21H16ClN3O4
2-((4-Chlorobenzyl)oxy)-N'-(2-nitrobenzylidene)benzohydrazide
CAS 881664-97-7C21H16ClN3O4
6-Chloro-N-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-4-oxo-4H-chromene-2-carboxamide
CAS 881217-65-8C21H16ClN3O4
![N-[2-Chloro-5-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenyl]-3,5-dimethoxybenzamide chemical structure, C21H16ClN3O4, CAS 443321-60-6](/s/QYUNJOWKGOVRCB-UHFFFAOYSA-N.svg)
N-[2-Chloro-5-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenyl]-3,5-dimethoxybenzamide
CAS 443321-60-6C21H16ClN3O4
![N-[3-[(2-Chlorobenzoyl)amino]phenyl]-2-methyl-3-nitrobenzamide chemical structure, C21H16ClN3O4, CAS 431979-49-6](/s/GTNVTBSYMGTZHE-UHFFFAOYSA-N.svg)
N-[3-[(2-Chlorobenzoyl)amino]phenyl]-2-methyl-3-nitrobenzamide
CAS 431979-49-6C21H16ClN3O4
![N-[4-[(3-Chlorobenzoyl)amino]phenyl]-3-methyl-4-nitrobenzamide chemical structure, C21H16ClN3O4, CAS 425658-58-8](/s/ZNIFVNDKLUKCOU-UHFFFAOYSA-N.svg)
N-[4-[(3-Chlorobenzoyl)amino]phenyl]-3-methyl-4-nitrobenzamide
CAS 425658-58-8C21H16ClN3O4
Cdc7-IN-1
C21H16ClN3O4
![4-Chloro-N-[3-[(2-methylbenzoyl)amino]phenyl]-3-nitrobenzamide chemical structure, C21H16ClN3O4, CAS 310415-04-4](/s/BVHBIIZXRRMLGW-UHFFFAOYSA-N.svg)
4-Chloro-N-[3-[(2-methylbenzoyl)amino]phenyl]-3-nitrobenzamide
CAS 310415-04-4C21H16ClN3O4
![Ethyl (z)-5-((1H-pyrrolo[2,3-b]pyridin-3-yl)methylene)-2-((2-chlorophenyl)amino)-4-oxo-4,5-dihydrofuran-3-carboxylate chemical structure, C21H16ClN3O4, CAS 1402055-25-7](/s/MNEODYFHQBZJNQ-UHFFFAOYSA-N.svg)
Ethyl (z)-5-((1H-pyrrolo[2,3-b]pyridin-3-yl)methylene)-2-((2-chlorophenyl)amino)-4-oxo-4,5-dihydrofuran-3-carboxylate
CAS 1402055-25-7C21H16ClN3O4
![N-[3-[(2-Chlorobenzoyl)amino]phenyl]-4-methyl-3-nitrobenzamide chemical structure, C21H16ClN3O4, CAS 313684-91-2](/s/OFVHWYKPERAKET-UHFFFAOYSA-N.svg)
N-[3-[(2-Chlorobenzoyl)amino]phenyl]-4-methyl-3-nitrobenzamide
CAS 313684-91-2C21H16ClN3O4
![N-(4-Chlorophenyl)-2-[1-(furan-2-carbonyl)-3-oxo-1,2,3,4-tetrahydroquinoxalin-2-yl]acetamide chemical structure, C21H16ClN3O4, CAS 484049-30-1](/s/QIAIDPZINUHPHC-UHFFFAOYSA-N.svg)
N-(4-Chlorophenyl)-2-[1-(furan-2-carbonyl)-3-oxo-1,2,3,4-tetrahydroquinoxalin-2-yl]acetamide
CAS 484049-30-1C21H16ClN3O4
1-(7-Chloroquinolin-4-yl)-5-(2,6-dimethoxyphenyl)-1H-pyrazole-3-carboxylic acid
CAS 1146757-92-7C21H16ClN3O4
(E)-2-Chloro-N-(4-(2-(2,4-dihydroxybenzylidene)hydrazinecarbonyl)phenyl)benzamide
CAS 329051-55-0C21H16ClN3O4
![5-[[1-[2-(4-Chlorophenoxy)ethyl]indol-3-yl]methylidene]-1,3-diazinane-2,4,6-trione chemical structure, C21H16ClN3O4, CAS 428480-55-1](/s/VVZMAMLCJPLOPF-UHFFFAOYSA-N.svg)
5-[[1-[2-(4-Chlorophenoxy)ethyl]indol-3-yl]methylidene]-1,3-diazinane-2,4,6-trione
CAS 428480-55-1C21H16ClN3O4
![6-Chloro-N-[1-(4-methoxybenzyl)-1H-pyrazol-5-yl]-4-oxo-4H-chromene-2-carboxamide chemical structure, C21H16ClN3O4, CAS 1171955-72-8](/s/ODGJODRCCBJSSS-UHFFFAOYSA-N.svg)
6-Chloro-N-[1-(4-methoxybenzyl)-1H-pyrazol-5-yl]-4-oxo-4H-chromene-2-carboxamide
CAS 1171955-72-8C21H16ClN3O4
![(5-(6-Chloro-[1,3]dioxolo[4,5-g]quinolin-7-yl)-3-cyclopropyl-4,5-dihydro-1H-pyrazol-1-yl)(furan-2-yl)methanone chemical structure, C21H16ClN3O4, CAS 1018049-32-5](/s/RXFNZYLATRNRQO-UHFFFAOYSA-N.svg)
(5-(6-Chloro-[1,3]dioxolo[4,5-g]quinolin-7-yl)-3-cyclopropyl-4,5-dihydro-1H-pyrazol-1-yl)(furan-2-yl)methanone
CAS 1018049-32-5C21H16ClN3O4
![2-[2-[3-(2-Chlorophenyl)-1,2,4-oxadiazol-5-yl]phenoxy]-N-(2-furylmethyl)acetamide chemical structure, C21H16ClN3O4, CAS 1223964-80-4](/s/QBDBGTICAYDEQP-UHFFFAOYSA-N.svg)
2-[2-[3-(2-Chlorophenyl)-1,2,4-oxadiazol-5-yl]phenoxy]-N-(2-furylmethyl)acetamide
CAS 1223964-80-4C21H16ClN3O4
![Methyl (3-{[1-(3-chlorophenyl)-2,5-dioxo-4-imidazolidinylidene]methyl}-1H-indol-1-yl)acetate chemical structure, C21H16ClN3O4, CAS 664358-73-0](/s/NWHDDLPLFRDQAN-RQZCQDPDSA-N.svg)
Methyl (3-{[1-(3-chlorophenyl)-2,5-dioxo-4-imidazolidinylidene]methyl}-1H-indol-1-yl)acetate
CAS 664358-73-0C21H16ClN3O4
![N-(2-Chloro-5-[1,3]oxazolo[4,5-b]pyridin-2-ylphenyl)-3,4-dimethoxybenzamide chemical structure, C21H16ClN3O4, CAS 876900-05-9](/s/SCPGPKPRZGXAIX-UHFFFAOYSA-N.svg)
N-(2-Chloro-5-[1,3]oxazolo[4,5-b]pyridin-2-ylphenyl)-3,4-dimethoxybenzamide
CAS 876900-05-9C21H16ClN3O4
![6-Chloro-4-oxo-N-{4-[4-(propan-2-yl)phenyl]-1,2,5-oxadiazol-3-yl}-4H-chromene-2-carboxamide chemical structure, C21H16ClN3O4, CAS 942894-65-7](/s/MHTAFNKNXSXIEI-UHFFFAOYSA-N.svg)
6-Chloro-4-oxo-N-{4-[4-(propan-2-yl)phenyl]-1,2,5-oxadiazol-3-yl}-4H-chromene-2-carboxamide
CAS 942894-65-7C21H16ClN3O4
![3-Chloro-N-(4-hydroxy-3-methyl-5-{[1,3]oxazolo[4,5-B]pyridin-2-YL}phenyl)-4-methoxybenzamide chemical structure, C21H16ClN3O4, CAS 896660-98-3](/s/CBWSDVLRDURFHJ-UHFFFAOYSA-N.svg)
3-Chloro-N-(4-hydroxy-3-methyl-5-{[1,3]oxazolo[4,5-B]pyridin-2-YL}phenyl)-4-methoxybenzamide
CAS 896660-98-3C21H16ClN3O4
![3-(2-Chlorophenyl)-N-{[3-(4-methoxyphenyl)-5-isoxazolyl]methyl}-5-isoxazolecarboxamide chemical structure, C21H16ClN3O4, CAS 338750-11-1](/s/OICPBVACXCFACM-UHFFFAOYSA-N.svg)
3-(2-Chlorophenyl)-N-{[3-(4-methoxyphenyl)-5-isoxazolyl]methyl}-5-isoxazolecarboxamide
CAS 338750-11-1C21H16ClN3O4
![N-(3-Chlorophenyl)-2-[1-(furan-2-ylcarbonyl)-3-oxo-1,2,3,4-tetrahydroquinoxalin-2-yl]acetamide chemical structure, C21H16ClN3O4, CAS 1009500-25-7](/s/PVVGDVGJEUCVOG-UHFFFAOYSA-N.svg)
N-(3-Chlorophenyl)-2-[1-(furan-2-ylcarbonyl)-3-oxo-1,2,3,4-tetrahydroquinoxalin-2-yl]acetamide
CAS 1009500-25-7C21H16ClN3O4
- [2-Oxo-2-[2-(phenylcarbamoyl)anilino]ethyl] 6-chloropyridine-3-carboxylate877241-22-0C21H16ClN3O4
- 3-(5-Chloro-2-methoxyphenyl)-N-(furan-2-ylmethyl)-4-oxo-3,4-dihydroquinazoline-7-carboxamide1190287-19-4C21H16ClN3O4
- 6-{[3-(2-Chlorophenyl)-6-oxopyridazin-1(6H)-yl]acetyl}-4-methyl-2H-1,4-benzoxazin-3(4H)-one1224166-56-6C21H16ClN3O4
- N-(2-{[(1,3-Dioxaindan-5-yl)methyl]carbamoyl}phenyl)-2-chloropyridine-3-carboxamide919899-79-9C21H16ClN3O4
- N-(2-{[(1,3-Dioxaindan-5-yl)methyl]carbamoyl}phenyl)-6-chloropyridine-3-carboxamide919886-24-1C21H16ClN3O4
- 3-(3-Chloro-4-methoxyphenyl)-N-(furan-2-ylmethyl)-4-oxo-3,4-dihydroquinazoline-7-carboxamide1190271-04-5C21H16ClN3O4
- 4-Chloro-N-[3-[(2-methyl-7-oxo-7H-isoxazolo[2,3-a]pyrimidin-5-yl)methoxy]phenyl]benzamide931962-98-0C21H16ClN3O4
- N-[(E)-(4-Chloro-2H-chromen-3-yl)methylideneamino]-2-[2-(1,2-oxazol-4-yl)phenoxy]acetamide665022-20-8C21H16ClN3O4
- 4-[(4-Chlorobenzyl)oxy]-N'-[(E)-(3-nitrophenyl)methylidene]benzohydrazide396647-19-1C21H16ClN3O4
- Carbamic acid, acetyl(4-chloro-3-cyano-6-methoxy-7-quinolinyl)-, phenylmethyl ester (9CI)423181-24-2C21H16ClN3O4
- Ethyl 2-(2-chloroanilino)-4-hydroxy-5-[(E)-pyrrolo[2,3-b]pyridin-3-ylidenemethyl]furan-3-carboxylateC21H16ClN3O4
- ({4-[(E)-(3-Chlorobenzoyl)diazenyl]anilino}oxy)(2-methoxyphenyl)methanone6938-71-2C21H16ClN3O4
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 5-chloro-3-methyl-1-[(4-methylphenyl)methyl]-1H-pyrazole-4-carboxylate2248348-97-0C21H16ClN3O4
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-[1-(4-chlorophenyl)-3,5-dimethyl-1H-pyrazol-4-yl]acetate2248370-29-6C21H16ClN3O4
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 4-[(4-chloro-3,5-dimethyl-1H-pyrazol-1-yl)methyl]benzoate2248365-70-8C21H16ClN3O4
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-(2-chlorophenyl)-5-(propan-2-yl)-1H-pyrazole-4-carboxylate2248333-35-7C21H16ClN3O4
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-[(4-chlorophenyl)methyl]-3,5-dimethyl-1H-pyrazole-4-carboxylate2248379-67-9C21H16ClN3O4
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-(4-chlorophenyl)-5-(propan-2-yl)-1H-pyrazole-4-carboxylate2248415-33-8C21H16ClN3O4
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-(3-chlorophenyl)-5-(propan-2-yl)-1H-pyrazole-4-carboxylate2248399-57-5C21H16ClN3O4
- 4-(Chloromethyl)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pyrimidine-5-carboxylic acid2757929-01-2C21H16ClN3O4
- 2-[4-Chloro-6-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pyrimidin-5-yl]acetic acid2580240-39-5C21H16ClN3O4
- 2-[(6-Chloropyridazin-3-yl)({[(9H-fluoren-9-yl)methoxy]carbonyl})amino]acetic acid2243507-96-0C21H16ClN3O4
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-[(2-chlorophenyl)methyl]-3,5-dimethyl-1H-pyrazole-4-carboxylate2248417-35-6C21H16ClN3O4
- 4-(6-(Benzyloxy)-4-chloro-3-nitroquinolin-7-yl)-3,5-dimethylisoxazole2525176-64-9C21H16ClN3O4
Frequently asked questions
What is the molar mass of C21H16ClN3O4?
The molar mass of C21H16ClN3O4 is 409.83 g/mol, calculated from standard atomic weights for 21 carbon atoms, 16 hydrogen atoms, 1 chlorine atom, 3 nitrogen atoms and 4 oxygen atoms. The monoisotopic mass is 409.0829 Da.
How many compounds have the formula C21H16ClN3O4?
CompoundList lists 48 compounds with the molecular formula C21H16ClN3O4, including 4-(2-Isonicotinoylcarbohydrazonoyl)-2-methoxyphenyl 2-chlorobenzoate, [2-[5-(4-Chlorophenyl)-3-(furan-2-yl)-3,4-dihydropyrazol-2-yl]-2-oxoethyl] pyridine-3-carboxylate, 2-((4-Chlorobenzyl)oxy)-N'-(2-nitrobenzylidene)benzohydrazide. 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 C21H16ClN3O4?
C21H16ClN3O4 has a degree of unsaturation of 15. 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.