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Molecular formula

C21H20ClN3O3

138 compounds have this formula on CompoundList.

Molar mass
397.86g/mol
Monoisotopic mass
397.1193Da
Atoms
48
Elements
5
Rings plus double bonds
13

The formula C21H20ClN3O3 describes a molecule made of 21 carbon atoms, 20 hydrogen atoms, 1 chlorine atom, 3 nitrogen atoms and 3 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 × 2163.40%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 205.07%
    1.008 × 20 = 20.160 g/mol
  • Cl Chlorine × 18.91%
    35.45 × 1 = 35.450 g/mol
  • N Nitrogen × 310.56%
    14.007 × 3 = 42.021 g/mol
  • O Oxygen × 312.06%
    15.999 × 3 = 47.997 g/mol
Look up another formula

Compounds with the formula C21H20ClN3O3

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

Showing 101 to 138 of 138 compounds

Ethyl 4-((2-chlorobenzyl)amino)-6-oxo-1-(p-tolyl)-1,6-dihydropyridazine-3-carboxylate chemical structure, C21H20ClN3O3, CAS 922121-34-4
Ethyl 4-((2-chlorobenzyl)amino)-6-oxo-1-(p-tolyl)-1,6-dihydropyridazine-3-carboxylate
CAS 922121-34-4C21H20ClN3O3
2-Chloro-N-(2-(3-(4-ethoxyphenyl)-6-oxopyridazin-1(6H)-yl)ethyl)benzamide chemical structure, C21H20ClN3O3, CAS 921578-78-1
2-Chloro-N-(2-(3-(4-ethoxyphenyl)-6-oxopyridazin-1(6H)-yl)ethyl)benzamide
CAS 921578-78-1C21H20ClN3O3
4-Chloro-N-(2-(3-(4-ethoxyphenyl)-6-oxopyridazin-1(6H)-yl)ethyl)benzamide chemical structure, C21H20ClN3O3, CAS 921533-05-3
4-Chloro-N-(2-(3-(4-ethoxyphenyl)-6-oxopyridazin-1(6H)-yl)ethyl)benzamide
CAS 921533-05-3C21H20ClN3O3
3-Chloro-N-(2-(3-(4-ethoxyphenyl)-6-oxopyridazin-1(6H)-yl)ethyl)benzamide chemical structure, C21H20ClN3O3, CAS 921852-81-5
3-Chloro-N-(2-(3-(4-ethoxyphenyl)-6-oxopyridazin-1(6H)-yl)ethyl)benzamide
CAS 921852-81-5C21H20ClN3O3
2-(4-Chlorophenoxy)-N-(3-(6-oxo-3-phenylpyridazin-1(6H)-yl)propyl)acetamide chemical structure, C21H20ClN3O3, CAS 1021056-37-0
2-(4-Chlorophenoxy)-N-(3-(6-oxo-3-phenylpyridazin-1(6H)-yl)propyl)acetamide
CAS 1021056-37-0C21H20ClN3O3
2-(2-Chlorophenoxy)-N-(3-(6-oxo-3-phenylpyridazin-1(6H)-yl)propyl)acetamide chemical structure, C21H20ClN3O3, CAS 1058199-47-5
2-(2-Chlorophenoxy)-N-(3-(6-oxo-3-phenylpyridazin-1(6H)-yl)propyl)acetamide
CAS 1058199-47-5C21H20ClN3O3
2-{[2-(4-Chlorophenyl)-6-methylpyrimidin-4-yl]oxy}-N-(2-ethoxyphenyl)acetamide chemical structure, C21H20ClN3O3, CAS 1251620-12-8
2-{[2-(4-Chlorophenyl)-6-methylpyrimidin-4-yl]oxy}-N-(2-ethoxyphenyl)acetamide
CAS 1251620-12-8C21H20ClN3O3
N-(3-Chloro-4-methoxyphenyl)-2-(10-oxo-3,4-dihydrobenzo[b][1,6]naphthyridin-2(1H,5H,10H)-yl)acetamide chemical structure, C21H20ClN3O3, CAS 1251580-71-8
N-(3-Chloro-4-methoxyphenyl)-2-(10-oxo-3,4-dihydrobenzo[b][1,6]naphthyridin-2(1H,5H,10H)-yl)acetamide
CAS 1251580-71-8C21H20ClN3O3
2-(4-Chloro-3,5-dimethylphenoxy)-N-(2-(1-methyl-6-oxo-1,6-dihydropyridazin-3-yl)phenyl)acetamide chemical structure, C21H20ClN3O3, CAS 1428349-80-7
2-(4-Chloro-3,5-dimethylphenoxy)-N-(2-(1-methyl-6-oxo-1,6-dihydropyridazin-3-yl)phenyl)acetamide
CAS 1428349-80-7C21H20ClN3O3
N-[2-(5-Chloro-1H-indol-3-yl)ethyl]-5,6-dimethoxy-1H-indole-2-carboxamide chemical structure, C21H20ClN3O3, CAS 1574336-82-5
N-[2-(5-Chloro-1H-indol-3-yl)ethyl]-5,6-dimethoxy-1H-indole-2-carboxamide
CAS 1574336-82-5C21H20ClN3O3
8-Chloro-2-(3-(4-methoxyphenyl)propanoyl)-3,4-dihydro-1H-dipyrido[1,2-a:4',3'-d]pyrimidin-11(2H)-one chemical structure, C21H20ClN3O3, CAS 2034532-01-7
8-Chloro-2-(3-(4-methoxyphenyl)propanoyl)-3,4-dihydro-1H-dipyrido[1,2-a:4',3'-d]pyrimidin-11(2H)-one
CAS 2034532-01-7C21H20ClN3O3
3-(1-(2-(4-Chlorophenoxy)acetyl)piperidin-3-yl)quinazolin-4(3H)-one chemical structure, C21H20ClN3O3, CAS 2034422-53-0
3-(1-(2-(4-Chlorophenoxy)acetyl)piperidin-3-yl)quinazolin-4(3H)-one
CAS 2034422-53-0C21H20ClN3O3
2-(4-Chlorophenyl)-9-(2-methoxyphenyl)hexahydro-1H-pyrazolo[1,2-a]pyrrolo[3,4-c]pyrazole-1,3(2H)-dione chemical structure, C21H20ClN3O3, CAS 1005280-65-8
2-(4-Chlorophenyl)-9-(2-methoxyphenyl)hexahydro-1H-pyrazolo[1,2-a]pyrrolo[3,4-c]pyrazole-1,3(2H)-dione
CAS 1005280-65-8C21H20ClN3O3
N-[2-(4-Acetylpiperazin-1-yl)-3-chlorophenyl]-1-benzofuran-2-carboxamide chemical structure, C21H20ClN3O3, CAS 919025-93-7
N-[2-(4-Acetylpiperazin-1-yl)-3-chlorophenyl]-1-benzofuran-2-carboxamide
CAS 919025-93-7C21H20ClN3O3
3-(3-Chloro-4-methoxyphenyl)-N-cyclopentyl-4-oxo-3,4-dihydroquinazoline-7-carboxamide chemical structure, C21H20ClN3O3, CAS 1190275-22-9
3-(3-Chloro-4-methoxyphenyl)-N-cyclopentyl-4-oxo-3,4-dihydroquinazoline-7-carboxamide
CAS 1190275-22-9C21H20ClN3O3
2-(4-Chlorophenoxy)-2-methyl-1-(3-(3-phenyl-1,2,4-oxadiazol-5-yl)azetidin-1-yl)propan-1-one chemical structure, C21H20ClN3O3, CAS 1251685-67-2
2-(4-Chlorophenoxy)-2-methyl-1-(3-(3-phenyl-1,2,4-oxadiazol-5-yl)azetidin-1-yl)propan-1-one
CAS 1251685-67-2C21H20ClN3O3
2-(8-Chloro-10-oxo-3,4-dihydrobenzo[b][1,6]naphthyridin-2(1H,5H,10H)-yl)-N-(4-methoxyphenyl)acetamide chemical structure, C21H20ClN3O3, CAS 1226459-06-8
2-(8-Chloro-10-oxo-3,4-dihydrobenzo[b][1,6]naphthyridin-2(1H,5H,10H)-yl)-N-(4-methoxyphenyl)acetamide
CAS 1226459-06-8C21H20ClN3O3
N-(3-Chlorophenyl)-2-(8-methoxy-10-oxo-3,4-dihydrobenzo[b][1,6]naphthyridin-2(1H,5H,10H)-yl)acetamide chemical structure, C21H20ClN3O3, CAS 1251551-60-6
N-(3-Chlorophenyl)-2-(8-methoxy-10-oxo-3,4-dihydrobenzo[b][1,6]naphthyridin-2(1H,5H,10H)-yl)acetamide
CAS 1251551-60-6C21H20ClN3O3
3-(2-Chlorophenyl)-5-{1-[(4-methoxyphenyl)acetyl]pyrrolidin-2-yl}-1,2,4-oxadiazole chemical structure, C21H20ClN3O3, CAS 1795293-37-6
3-(2-Chlorophenyl)-5-{1-[(4-methoxyphenyl)acetyl]pyrrolidin-2-yl}-1,2,4-oxadiazole
CAS 1795293-37-6C21H20ClN3O3
5-[1-(5-Chloro-2-methoxybenzoyl)pyrrolidin-2-yl]-3-(4-methylphenyl)-1,2,4-oxadiazole chemical structure, C21H20ClN3O3, CAS 1798633-85-8
5-[1-(5-Chloro-2-methoxybenzoyl)pyrrolidin-2-yl]-3-(4-methylphenyl)-1,2,4-oxadiazole
CAS 1798633-85-8C21H20ClN3O3
Methyl 4-((2-amino-4-chloro-6-methylpyrimidin-5-yl)methyl)-3-(benzyloxy)benzoate chemical structure, C21H20ClN3O3, CAS 1158804-80-8
Methyl 4-((2-amino-4-chloro-6-methylpyrimidin-5-yl)methyl)-3-(benzyloxy)benzoate
CAS 1158804-80-8C21H20ClN3O3
1-[1-(3-Chlorobenzoyl)piperidin-4-yl]-3-phenylimidazolidine-2,4-dione chemical structure, C21H20ClN3O3, CAS 2034418-43-2
1-[1-(3-Chlorobenzoyl)piperidin-4-yl]-3-phenylimidazolidine-2,4-dione
CAS 2034418-43-2C21H20ClN3O3
N-[(4-Chlorophenyl)methyl]-2-[4-(3-methoxyphenyl)-2-methyl-6-oxo-1,6-dihydropyrimidin-1-yl]acetamide chemical structure, C21H20ClN3O3, CAS 2320537-79-7
N-[(4-Chlorophenyl)methyl]-2-[4-(3-methoxyphenyl)-2-methyl-6-oxo-1,6-dihydropyrimidin-1-yl]acetamide
CAS 2320537-79-7C21H20ClN3O3
3-Chloro-4-{[1-(5-phenyl-1,2-oxazole-3-carbonyl)piperidin-4-yl]methoxy}pyridine chemical structure, C21H20ClN3O3, CAS 2640819-67-4
3-Chloro-4-{[1-(5-phenyl-1,2-oxazole-3-carbonyl)piperidin-4-yl]methoxy}pyridine
CAS 2640819-67-4C21H20ClN3O3

Frequently asked questions

What is the molar mass of C21H20ClN3O3?

The molar mass of C21H20ClN3O3 is 397.86 g/mol, calculated from standard atomic weights for 21 carbon atoms, 20 hydrogen atoms, 1 chlorine atom, 3 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 397.1193 Da.

How many compounds have the formula C21H20ClN3O3?

CompoundList lists 138 compounds with the molecular formula C21H20ClN3O3, including Ethyl 4-((2-chlorobenzyl)amino)-6-oxo-1-(p-tolyl)-1,6-dihydropyridazine-3-carboxylate, 2-Chloro-N-(2-(3-(4-ethoxyphenyl)-6-oxopyridazin-1(6H)-yl)ethyl)benzamide, 4-Chloro-N-(2-(3-(4-ethoxyphenyl)-6-oxopyridazin-1(6H)-yl)ethyl)benzamide. 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 C21H20ClN3O3?

C21H20ClN3O3 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.