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Molecular formula

C21H16Cl2N2O4

19 compounds have this formula on CompoundList.

Molar mass
431.27g/mol
Monoisotopic mass
430.0487Da
Atoms
45
Elements
5
Rings plus double bonds
14

The formula C21H16Cl2N2O4 describes a molecule made of 21 carbon atoms, 16 hydrogen atoms, 2 chlorine atoms, 2 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 × 2158.49%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 163.74%
    1.008 × 16 = 16.128 g/mol
  • Cl Chlorine × 216.44%
    35.45 × 2 = 70.900 g/mol
  • N Nitrogen × 26.50%
    14.007 × 2 = 28.014 g/mol
  • O Oxygen × 414.84%
    15.999 × 4 = 63.996 g/mol
Look up another formula

Compounds with the formula C21H16Cl2N2O4

Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.

Showing 1 to 19 of 19 compounds

2-(2,4-Dichlorophenyl)-2-oxoethyl 4-oxo-4-(quinolin-8-ylamino)butanoate chemical structure, C21H16Cl2N2O4, CAS 434305-62-1
2-(2,4-Dichlorophenyl)-2-oxoethyl 4-oxo-4-(quinolin-8-ylamino)butanoate
CAS 434305-62-1C21H16Cl2N2O4
N,N'-Bis(4-chlorophenoxycarbonyl)-4-methyl-1,3-phenylenediamine chemical structure, C21H16Cl2N2O4, CAS 33275-07-9
N,N'-Bis(4-chlorophenoxycarbonyl)-4-methyl-1,3-phenylenediamine
CAS 33275-07-9C21H16Cl2N2O4
N-[4-[[(E)-3-(2,4-Dichlorophenyl)prop-2-enoyl]amino]-2-methoxyphenyl]furan-2-carboxamide chemical structure, C21H16Cl2N2O4, CAS 347337-37-5
N-[4-[[(E)-3-(2,4-Dichlorophenyl)prop-2-enoyl]amino]-2-methoxyphenyl]furan-2-carboxamide
CAS 347337-37-5C21H16Cl2N2O4
Methyl 2-({[1-(2,4-dichlorobenzyl)-2-oxo-1,2-dihydro-3-pyridinyl]carbonyl}amino)benzenecarboxylate chemical structure, C21H16Cl2N2O4, CAS 338977-61-0
Methyl 2-({[1-(2,4-dichlorobenzyl)-2-oxo-1,2-dihydro-3-pyridinyl]carbonyl}amino)benzenecarboxylate
CAS 338977-61-0C21H16Cl2N2O4
1-(2,4-Dichlorobenzyl)-N-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-2-oxo-1,2-dihydropyridine-3-carboxamide chemical structure, C21H16Cl2N2O4, CAS 942008-82-4
1-(2,4-Dichlorobenzyl)-N-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-2-oxo-1,2-dihydropyridine-3-carboxamide
CAS 942008-82-4C21H16Cl2N2O4
2-(2,4-Dichlorophenoxy)-N-(1-(furan-2-carbonyl)indolin-6-yl)acetamide chemical structure, C21H16Cl2N2O4, CAS 1040656-82-3
2-(2,4-Dichlorophenoxy)-N-(1-(furan-2-carbonyl)indolin-6-yl)acetamide
CAS 1040656-82-3C21H16Cl2N2O4
Methyl 2-({[1-(2,4-dichlorobenzyl)-6-oxo-1,6-dihydro-3-pyridinyl]carbonyl}amino)benzenecarboxylate chemical structure, C21H16Cl2N2O4, CAS 242797-49-5
Methyl 2-({[1-(2,4-dichlorobenzyl)-6-oxo-1,6-dihydro-3-pyridinyl]carbonyl}amino)benzenecarboxylate
CAS 242797-49-5C21H16Cl2N2O4
4-(4-Chloro-3-nitrophenyl)-7-(2-chlorophenyl)-4,6,7,8-tetrahydroquinoline-2,5(1H,3H)-dione chemical structure, C21H16Cl2N2O4, CAS 886632-94-6
4-(4-Chloro-3-nitrophenyl)-7-(2-chlorophenyl)-4,6,7,8-tetrahydroquinoline-2,5(1H,3H)-dione
CAS 886632-94-6C21H16Cl2N2O4
4-(2-Chloro-5-nitrophenyl)-7-(2-chlorophenyl)-4,6,7,8-tetrahydroquinoline-2,5(1H,3H)-dione chemical structure, C21H16Cl2N2O4, CAS 886632-99-1
4-(2-Chloro-5-nitrophenyl)-7-(2-chlorophenyl)-4,6,7,8-tetrahydroquinoline-2,5(1H,3H)-dione
CAS 886632-99-1C21H16Cl2N2O4
3(2H)-Pyridazinone, 4-acetyl-5,6-bis(4-chlorophenyl)-2-(2-(formyloxy)ethyl)- chemical structure, C21H16Cl2N2O4, CAS 78612-98-3
3(2H)-Pyridazinone, 4-acetyl-5,6-bis(4-chlorophenyl)-2-(2-(formyloxy)ethyl)-
CAS 78612-98-3C21H16Cl2N2O4
Methyl 2-({[5-chloro-1-(3-chlorobenzyl)-6-oxo-1,6-dihydro-3-pyridinyl]carbonyl}amino)benzenecarboxylate chemical structure, C21H16Cl2N2O4, CAS 338977-31-4
Methyl 2-({[5-chloro-1-(3-chlorobenzyl)-6-oxo-1,6-dihydro-3-pyridinyl]carbonyl}amino)benzenecarboxylate
CAS 338977-31-4C21H16Cl2N2O4
Methyl 4-({[5-chloro-1-(3-chlorobenzyl)-6-oxo-1,6-dihydro-3-pyridinyl]carbonyl}amino)benzenecarboxylate chemical structure, C21H16Cl2N2O4, CAS 338977-49-4
Methyl 4-({[5-chloro-1-(3-chlorobenzyl)-6-oxo-1,6-dihydro-3-pyridinyl]carbonyl}amino)benzenecarboxylate
CAS 338977-49-4C21H16Cl2N2O4
Methyl 2-({[5-chloro-1-(4-chlorobenzyl)-2-oxo-1,2-dihydro-3-pyridinyl]carbonyl}amino)benzenecarboxylate chemical structure, C21H16Cl2N2O4, CAS 338977-29-0
Methyl 2-({[5-chloro-1-(4-chlorobenzyl)-2-oxo-1,2-dihydro-3-pyridinyl]carbonyl}amino)benzenecarboxylate
CAS 338977-29-0C21H16Cl2N2O4
(5Z)-5-{[5-(2,4-Dichlorophenyl)furan-2-yl]methylidene}-1-(2-methoxyethyl)-4-methyl-2,6-dioxo-1,2,5,6-tetrahydropyridine-3-carbonitrile chemical structure, C21H16Cl2N2O4, CAS 880399-91-7
(5Z)-5-{[5-(2,4-Dichlorophenyl)furan-2-yl]methylidene}-1-(2-methoxyethyl)-4-methyl-2,6-dioxo-1,2,5,6-tetrahydropyridine-3-carbonitrile
CAS 880399-91-7C21H16Cl2N2O4
Methyl 2-[[5-chloro-1-[(3-chlorophenyl)methyl]-2-oxopyridine-3-carbonyl]amino]benzoate chemical structure, C21H16Cl2N2O4, CAS 242797-31-5
Methyl 2-[[5-chloro-1-[(3-chlorophenyl)methyl]-2-oxopyridine-3-carbonyl]amino]benzoate
CAS 242797-31-5C21H16Cl2N2O4
2-(2-Nitrophenoxy)-1-phenyl-1-ethanone O-(2,4-dichlorobenzyl)oxime chemical structure, C21H16Cl2N2O4, CAS 338747-43-6
2-(2-Nitrophenoxy)-1-phenyl-1-ethanone O-(2,4-dichlorobenzyl)oxime
CAS 338747-43-6C21H16Cl2N2O4
Methyl 4-(1-(2,4-dichlorobenzyl)-2-oxo-1,2-dihydropyridine-3-carboxamido)benzoate chemical structure, C21H16Cl2N2O4, CAS 942008-79-9
Methyl 4-(1-(2,4-dichlorobenzyl)-2-oxo-1,2-dihydropyridine-3-carboxamido)benzoate
CAS 942008-79-9C21H16Cl2N2O4
[(3-Methoxyphenyl)carbamoyl](phenyl)methyl 5,6-dichloropyridine-3-carboxylate chemical structure, C21H16Cl2N2O4, CAS 730982-07-7
[(3-Methoxyphenyl)carbamoyl](phenyl)methyl 5,6-dichloropyridine-3-carboxylate
CAS 730982-07-7C21H16Cl2N2O4
Benzyl N-[3-chloro-4-(5-chloro-2-hydroxybenzamido)phenyl]carbamate chemical structure, C21H16Cl2N2O4, CAS 2763921-65-7
Benzyl N-[3-chloro-4-(5-chloro-2-hydroxybenzamido)phenyl]carbamate
CAS 2763921-65-7C21H16Cl2N2O4

Frequently asked questions

What is the molar mass of C21H16Cl2N2O4?

The molar mass of C21H16Cl2N2O4 is 431.27 g/mol, calculated from standard atomic weights for 21 carbon atoms, 16 hydrogen atoms, 2 chlorine atoms, 2 nitrogen atoms and 4 oxygen atoms. The monoisotopic mass is 430.0487 Da.

How many compounds have the formula C21H16Cl2N2O4?

CompoundList lists 19 compounds with the molecular formula C21H16Cl2N2O4, including 2-(2,4-Dichlorophenyl)-2-oxoethyl 4-oxo-4-(quinolin-8-ylamino)butanoate, N,N'-Bis(4-chlorophenoxycarbonyl)-4-methyl-1,3-phenylenediamine, N-[4-[[(E)-3-(2,4-Dichlorophenyl)prop-2-enoyl]amino]-2-methoxyphenyl]furan-2-carboxamide. 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 C21H16Cl2N2O4?

C21H16Cl2N2O4 has a degree of unsaturation of 14. 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.