CompoundList
Sign in
Molecular formula

C21H20ClN3O5

19 compounds have this formula on CompoundList.

Molar mass
429.86g/mol
Monoisotopic mass
429.1091Da
Atoms
50
Elements
5
Rings plus double bonds
13

The formula C21H20ClN3O5 describes a molecule made of 21 carbon atoms, 20 hydrogen atoms, 1 chlorine atom, 3 nitrogen atoms and 5 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 × 2158.68%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 204.69%
    1.008 × 20 = 20.160 g/mol
  • Cl Chlorine × 18.25%
    35.45 × 1 = 35.450 g/mol
  • N Nitrogen × 39.78%
    14.007 × 3 = 42.021 g/mol
  • O Oxygen × 518.61%
    15.999 × 5 = 79.995 g/mol
Look up another formula

Compounds with the formula C21H20ClN3O5

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-(4-Chloro-2-methoxy-5-methylanilino)-2-oxoethyl] 6-oxo-1-phenyl-4,5-dihydropyridazine-3-carboxylate chemical structure, C21H20ClN3O5, CAS 732289-79-1
[2-(4-Chloro-2-methoxy-5-methylanilino)-2-oxoethyl] 6-oxo-1-phenyl-4,5-dihydropyridazine-3-carboxylate
CAS 732289-79-1C21H20ClN3O5
[2-(5-Chloro-2-methoxyanilino)-2-oxoethyl] 1-ethyl-7-methyl-4-oxo-1,8-naphthyridine-3-carboxylate chemical structure, C21H20ClN3O5, CAS 566141-19-3
[2-(5-Chloro-2-methoxyanilino)-2-oxoethyl] 1-ethyl-7-methyl-4-oxo-1,8-naphthyridine-3-carboxylate
CAS 566141-19-3C21H20ClN3O5
2-(4-{(Z)-[1-(4-Chlorobenzyl)-2,5-dioxoimidazolidin-4-ylidene]methyl}-2-ethoxyphenoxy)acetamide chemical structure, C21H20ClN3O5, CAS 431920-80-8
2-(4-{(Z)-[1-(4-Chlorobenzyl)-2,5-dioxoimidazolidin-4-ylidene]methyl}-2-ethoxyphenoxy)acetamide
CAS 431920-80-8C21H20ClN3O5
Sgc-ubd253 chemical structure, C21H20ClN3O5, CAS 3033200-03-9
Sgc-ubd253
CAS 3033200-03-9C21H20ClN3O5
N-(2-Chloro-4-methylphenyl)-2-(4-(3,4-dimethoxyphenyl)-2,3-dioxo-3,4-dihydropyrazin-1(2H)-yl)acetamide chemical structure, C21H20ClN3O5, CAS 898463-98-4
N-(2-Chloro-4-methylphenyl)-2-(4-(3,4-dimethoxyphenyl)-2,3-dioxo-3,4-dihydropyrazin-1(2H)-yl)acetamide
CAS 898463-98-4C21H20ClN3O5
5-Butyl-2-(4-chlorophenyl)-3-(3-nitrophenyl)dihydro-2H-pyrrolo[3,4-d]isoxazole-4,6(5H,6aH)-dione chemical structure, C21H20ClN3O5, CAS 1005262-61-2
5-Butyl-2-(4-chlorophenyl)-3-(3-nitrophenyl)dihydro-2H-pyrrolo[3,4-d]isoxazole-4,6(5H,6aH)-dione
CAS 1005262-61-2C21H20ClN3O5
1-(3-Chloro-4-methoxyphenyl)-4-[3-(3,4-dimethoxyphenyl)-1,2,4-oxadiazol-5-yl]pyrrolidin-2-one chemical structure, C21H20ClN3O5, CAS 941961-08-6
1-(3-Chloro-4-methoxyphenyl)-4-[3-(3,4-dimethoxyphenyl)-1,2,4-oxadiazol-5-yl]pyrrolidin-2-one
CAS 941961-08-6C21H20ClN3O5
2-(4-(4-Chlorobenzyl)-2,3-dioxo-3,4-dihydropyrazin-1(2H)-yl)-N-(3,5-dimethoxyphenyl)acetamide chemical structure, C21H20ClN3O5, CAS 899726-46-6
2-(4-(4-Chlorobenzyl)-2,3-dioxo-3,4-dihydropyrazin-1(2H)-yl)-N-(3,5-dimethoxyphenyl)acetamide
CAS 899726-46-6C21H20ClN3O5
Ethyl 1-(2-((3-chloro-4-methoxyphenyl)amino)-2-oxoethyl)-7-methyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylate chemical structure, C21H20ClN3O5, CAS 1031573-35-9
Ethyl 1-(2-((3-chloro-4-methoxyphenyl)amino)-2-oxoethyl)-7-methyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylate
CAS 1031573-35-9C21H20ClN3O5
N-(5-Chloro-2,4-dimethoxyphenyl)-2-(3-(3-methoxyphenyl)-6-oxopyridazin-1(6H)-yl)acetamide chemical structure, C21H20ClN3O5, CAS 1232694-38-0
N-(5-Chloro-2,4-dimethoxyphenyl)-2-(3-(3-methoxyphenyl)-6-oxopyridazin-1(6H)-yl)acetamide
CAS 1232694-38-0C21H20ClN3O5
1-(3-Chloro-4-methoxyphenyl)-4-(3-(2,3-dimethoxyphenyl)-1,2,4-oxadiazol-5-yl)pyrrolidin-2-one chemical structure, C21H20ClN3O5, CAS 941917-97-1
1-(3-Chloro-4-methoxyphenyl)-4-(3-(2,3-dimethoxyphenyl)-1,2,4-oxadiazol-5-yl)pyrrolidin-2-one
CAS 941917-97-1C21H20ClN3O5
N-(5-Chloro-2-methoxyphenyl)-2-(3-(3,4-dimethoxyphenyl)-6-oxopyridazin-1(6H)-yl)acetamide chemical structure, C21H20ClN3O5, CAS 922947-20-4
N-(5-Chloro-2-methoxyphenyl)-2-(3-(3,4-dimethoxyphenyl)-6-oxopyridazin-1(6H)-yl)acetamide
CAS 922947-20-4C21H20ClN3O5
N-(3-Chloro-4-methoxyphenyl)-2-(3-(3,4-dimethoxyphenyl)-6-oxopyridazin-1(6H)-yl)acetamide chemical structure, C21H20ClN3O5, CAS 1282102-29-7
N-(3-Chloro-4-methoxyphenyl)-2-(3-(3,4-dimethoxyphenyl)-6-oxopyridazin-1(6H)-yl)acetamide
CAS 1282102-29-7C21H20ClN3O5
2-(3-(4-Chlorophenyl)-6-oxopyridazin-1(6H)-yl)-N-(3,4,5-trimethoxyphenyl)acetamide chemical structure, C21H20ClN3O5, CAS 1224162-48-4
2-(3-(4-Chlorophenyl)-6-oxopyridazin-1(6H)-yl)-N-(3,4,5-trimethoxyphenyl)acetamide
CAS 1224162-48-4C21H20ClN3O5
2-[3-(2-Chlorophenyl)-6-oxopyridazin-1(6H)-yl]-N-(3,4,5-trimethoxyphenyl)acetamide chemical structure, C21H20ClN3O5, CAS 1324087-36-6
2-[3-(2-Chlorophenyl)-6-oxopyridazin-1(6H)-yl]-N-(3,4,5-trimethoxyphenyl)acetamide
CAS 1324087-36-6C21H20ClN3O5
3-Benzyl-5-(1-(3-chlorobenzyl)azetidin-3-yl)-1,2,4-oxadiazole oxalate chemical structure, C21H20ClN3O5, CAS 1428347-43-6
3-Benzyl-5-(1-(3-chlorobenzyl)azetidin-3-yl)-1,2,4-oxadiazole oxalate
CAS 1428347-43-6C21H20ClN3O5
3-(3-Chlorophenyl)-5-(1-(2-methylbenzyl)azetidin-3-yl)-1,2,4-oxadiazole oxalate chemical structure, C21H20ClN3O5, CAS 1448067-34-2
3-(3-Chlorophenyl)-5-(1-(2-methylbenzyl)azetidin-3-yl)-1,2,4-oxadiazole oxalate
CAS 1448067-34-2C21H20ClN3O5
N-(3-Chloro-4-methoxyphenyl)-2-{4-[(2-methoxyphenyl)methyl]-2,3-dioxo-1,2,3,4-tetrahydropyrazin-1-yl}acetamide chemical structure, C21H20ClN3O5, CAS 904524-98-7
N-(3-Chloro-4-methoxyphenyl)-2-{4-[(2-methoxyphenyl)methyl]-2,3-dioxo-1,2,3,4-tetrahydropyrazin-1-yl}acetamide
CAS 904524-98-7C21H20ClN3O5
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-chloro-5-{[(2,2-dimethylpropyl)carbamoyl]amino}benzoate chemical structure, C21H20ClN3O5, CAS 2248270-01-9
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-chloro-5-{[(2,2-dimethylpropyl)carbamoyl]amino}benzoate
CAS 2248270-01-9C21H20ClN3O5

Frequently asked questions

What is the molar mass of C21H20ClN3O5?

The molar mass of C21H20ClN3O5 is 429.86 g/mol, calculated from standard atomic weights for 21 carbon atoms, 20 hydrogen atoms, 1 chlorine atom, 3 nitrogen atoms and 5 oxygen atoms. The monoisotopic mass is 429.1091 Da.

How many compounds have the formula C21H20ClN3O5?

CompoundList lists 19 compounds with the molecular formula C21H20ClN3O5, including [2-(4-Chloro-2-methoxy-5-methylanilino)-2-oxoethyl] 6-oxo-1-phenyl-4,5-dihydropyridazine-3-carboxylate, [2-(5-Chloro-2-methoxyanilino)-2-oxoethyl] 1-ethyl-7-methyl-4-oxo-1,8-naphthyridine-3-carboxylate, 2-(4-{(Z)-[1-(4-Chlorobenzyl)-2,5-dioxoimidazolidin-4-ylidene]methyl}-2-ethoxyphenoxy)acetamide. 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 C21H20ClN3O5?

C21H20ClN3O5 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.