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Molecular formula

C21H20ClN5O3

42 compounds have this formula on CompoundList.

Molar mass
425.87g/mol
Monoisotopic mass
425.1255Da
Atoms
50
Elements
5
Rings plus double bonds
14

The formula C21H20ClN5O3 describes a molecule made of 21 carbon atoms, 20 hydrogen atoms, 1 chlorine atom, 5 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 × 2159.23%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 204.73%
    1.008 × 20 = 20.160 g/mol
  • Cl Chlorine × 18.32%
    35.45 × 1 = 35.450 g/mol
  • N Nitrogen × 516.45%
    14.007 × 5 = 70.035 g/mol
  • O Oxygen × 311.27%
    15.999 × 3 = 47.997 g/mol
Look up another formula

Compounds with the formula C21H20ClN5O3

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

Showing 1 to 42 of 42 compounds

N-(3-{N-[(4-chloro-1-methyl-1H-pyrazol-5-yl)carbonyl]ethanehydrazonoyl}phenyl)-2-phenoxyacetamide chemical structure, C21H20ClN5O3, CAS 515175-85-6
N-(3-{N-[(4-chloro-1-methyl-1H-pyrazol-5-yl)carbonyl]ethanehydrazonoyl}phenyl)-2-phenoxyacetamide
CAS 515175-85-6C21H20ClN5O3
2-(3-Chlorophenyl)-7-(3,4-dimethoxyphenyl)-5-methyl-4,7-dihydro[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxamide chemical structure, C21H20ClN5O3, CAS 539815-43-5
2-(3-Chlorophenyl)-7-(3,4-dimethoxyphenyl)-5-methyl-4,7-dihydro[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxamide
CAS 539815-43-5C21H20ClN5O3
N-(2-chlorobenzyl)-2-[5-(3,4-dimethylphenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]acetamide chemical structure, C21H20ClN5O3, CAS 1052568-78-1
N-(2-chlorobenzyl)-2-[5-(3,4-dimethylphenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]acetamide
CAS 1052568-78-1C21H20ClN5O3
N-(2-Chlorobenzyl)-2-(1,5-dioxo-4-propyl-4,5-dihydro-[1,2,4]triazolo[4,3-a]quinazolin-2(1H)-yl)acetamide chemical structure, C21H20ClN5O3, CAS 1189900-31-9
N-(2-Chlorobenzyl)-2-(1,5-dioxo-4-propyl-4,5-dihydro-[1,2,4]triazolo[4,3-a]quinazolin-2(1H)-yl)acetamide
CAS 1189900-31-9C21H20ClN5O3
N-(4-Chlorobenzyl)-2-(1,5-dioxo-4-propyl-4,5-dihydro[1,2,4]triazolo[4,3-a]quinazolin-2(1H)-yl)acetamide chemical structure, C21H20ClN5O3, CAS 1242903-56-5
N-(4-Chlorobenzyl)-2-(1,5-dioxo-4-propyl-4,5-dihydro[1,2,4]triazolo[4,3-a]quinazolin-2(1H)-yl)acetamide
CAS 1242903-56-5C21H20ClN5O3
3-(4-Chlorobenzyl)-9-(furan-2-ylmethyl)-1-methyl-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione chemical structure, C21H20ClN5O3, CAS 876151-00-7
3-(4-Chlorobenzyl)-9-(furan-2-ylmethyl)-1-methyl-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione
CAS 876151-00-7C21H20ClN5O3
3-(2-Chlorobenzyl)-9-(furan-2-ylmethyl)-1-methyl-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione chemical structure, C21H20ClN5O3, CAS 877795-90-9
3-(2-Chlorobenzyl)-9-(furan-2-ylmethyl)-1-methyl-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione
CAS 877795-90-9C21H20ClN5O3
3-(3-Chlorobenzyl)-9-(furan-2-ylmethyl)-1-methyl-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione chemical structure, C21H20ClN5O3, CAS 876151-05-2
3-(3-Chlorobenzyl)-9-(furan-2-ylmethyl)-1-methyl-6,7,8,9-tetrahydropyrimido[2,1-f]purine-2,4(1H,3H)-dione
CAS 876151-05-2C21H20ClN5O3
N-(3-chloro-2-methylphenyl)-2-[5-(3,4-dimethylphenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]acetamide chemical structure, C21H20ClN5O3, CAS 1052548-50-1
N-(3-chloro-2-methylphenyl)-2-[5-(3,4-dimethylphenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]acetamide
CAS 1052548-50-1C21H20ClN5O3
N-(5-chloro-2-methylphenyl)-2-[5-(3,4-dimethylphenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]acetamide chemical structure, C21H20ClN5O3, CAS 1052548-61-4
N-(5-chloro-2-methylphenyl)-2-[5-(3,4-dimethylphenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]acetamide
CAS 1052548-61-4C21H20ClN5O3
N-(3-chlorophenyl)-2-{4,6-dioxo-5-[4-(propan-2-yl)phenyl]-1H,3aH,4H,5H,6H,6aH-pyrrolo[3,4-d][1,2,3]triazol-1-yl}acetamide chemical structure, C21H20ClN5O3, CAS 1052562-11-4
N-(3-chlorophenyl)-2-{4,6-dioxo-5-[4-(propan-2-yl)phenyl]-1H,3aH,4H,5H,6H,6aH-pyrrolo[3,4-d][1,2,3]triazol-1-yl}acetamide
CAS 1052562-11-4C21H20ClN5O3
2-[5-(3-Chlorophenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]-N-[4-(propan-2-yl)phenyl]acetamide chemical structure, C21H20ClN5O3, CAS 1052605-84-1
2-[5-(3-Chlorophenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]-N-[4-(propan-2-yl)phenyl]acetamide
CAS 1052605-84-1C21H20ClN5O3
N-(2-chlorophenyl)-2-[5-(4-isopropylphenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]acetamide chemical structure, C21H20ClN5O3, CAS 1052604-06-4
N-(2-chlorophenyl)-2-[5-(4-isopropylphenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]acetamide
CAS 1052604-06-4C21H20ClN5O3
N-(4-chlorophenyl)-2-[5-(4-isopropylphenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]acetamide chemical structure, C21H20ClN5O3, CAS 1052604-27-9
N-(4-chlorophenyl)-2-[5-(4-isopropylphenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]acetamide
CAS 1052604-27-9C21H20ClN5O3
N-(5-Chloro-2-methoxyphenyl)-2-(4-oxo-1-propyl[1,2,4]triazolo[4,3-a]quinoxalin-5(4H)-yl)acetamide chemical structure, C21H20ClN5O3, CAS 1261017-62-2
N-(5-Chloro-2-methoxyphenyl)-2-(4-oxo-1-propyl[1,2,4]triazolo[4,3-a]quinoxalin-5(4H)-yl)acetamide
CAS 1261017-62-2C21H20ClN5O3
2-(5-(3-Chloro-4-methylphenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl)-N-(3,4-dimethylphenyl)acetamide chemical structure, C21H20ClN5O3, CAS 1052559-84-8
2-(5-(3-Chloro-4-methylphenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl)-N-(3,4-dimethylphenyl)acetamide
CAS 1052559-84-8C21H20ClN5O3
2-(5-(3-Chloro-4-methylphenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl)-N-(2,5-dimethylphenyl)acetamide chemical structure, C21H20ClN5O3, CAS 1052560-27-6
2-(5-(3-Chloro-4-methylphenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl)-N-(2,5-dimethylphenyl)acetamide
CAS 1052560-27-6C21H20ClN5O3
2-[5-(3-Chloro-4-methylphenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]-N-(4-methylbenzyl)acetamide chemical structure, C21H20ClN5O3, CAS 1052561-06-4
2-[5-(3-Chloro-4-methylphenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]-N-(4-methylbenzyl)acetamide
CAS 1052561-06-4C21H20ClN5O3
N-(5-chloro-2-methylphenyl)-2-(5-(4-ethylphenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl)acetamide chemical structure, C21H20ClN5O3, CAS 1052561-94-0
N-(5-chloro-2-methylphenyl)-2-(5-(4-ethylphenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl)acetamide
CAS 1052561-94-0C21H20ClN5O3
N-(5-Chloro-2-methoxyphenyl)-2-(1-isopropyl-4-oxo-[1,2,4]triazolo[4,3-a]quinoxalin-5(4H)-yl)acetamide chemical structure, C21H20ClN5O3, CAS 1261017-72-4
N-(5-Chloro-2-methoxyphenyl)-2-(1-isopropyl-4-oxo-[1,2,4]triazolo[4,3-a]quinoxalin-5(4H)-yl)acetamide
CAS 1261017-72-4C21H20ClN5O3
N-(3-Chloro-4-methoxyphenyl)-2-[4-oxo-1-(propan-2-yl)[1,2,4]triazolo[4,3-a]quinoxalin-5(4H)-yl]acetamide chemical structure, C21H20ClN5O3, CAS 1260911-78-1
N-(3-Chloro-4-methoxyphenyl)-2-[4-oxo-1-(propan-2-yl)[1,2,4]triazolo[4,3-a]quinoxalin-5(4H)-yl]acetamide
CAS 1260911-78-1C21H20ClN5O3
N1-(5-chloro-2-cyanophenyl)-N2-((1-nicotinoylpiperidin-4-yl)methyl)oxalamide chemical structure, C21H20ClN5O3, CAS 1396747-07-1
N1-(5-chloro-2-cyanophenyl)-N2-((1-nicotinoylpiperidin-4-yl)methyl)oxalamide
CAS 1396747-07-1C21H20ClN5O3
(3-(2-Chlorophenyl)-5-methylisoxazol-4-yl)(2-morpholino-5H-pyrrolo[3,4-d]pyrimidin-6(7H)-yl)methanone chemical structure, C21H20ClN5O3, CAS 2034370-07-3
(3-(2-Chlorophenyl)-5-methylisoxazol-4-yl)(2-morpholino-5H-pyrrolo[3,4-d]pyrimidin-6(7H)-yl)methanone
CAS 2034370-07-3C21H20ClN5O3
7-(4-Chlorophenyl)-2-(3,4-dimethoxyphenyl)-5-methyl-4,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxamide chemical structure, C21H20ClN5O3, CAS 538319-36-7
7-(4-Chlorophenyl)-2-(3,4-dimethoxyphenyl)-5-methyl-4,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxamide
CAS 538319-36-7C21H20ClN5O3

Frequently asked questions

What is the molar mass of C21H20ClN5O3?

The molar mass of C21H20ClN5O3 is 425.87 g/mol, calculated from standard atomic weights for 21 carbon atoms, 20 hydrogen atoms, 1 chlorine atom, 5 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 425.1255 Da.

How many compounds have the formula C21H20ClN5O3?

CompoundList lists 42 compounds with the molecular formula C21H20ClN5O3, including N-(3-{N-[(4-chloro-1-methyl-1H-pyrazol-5-yl)carbonyl]ethanehydrazonoyl}phenyl)-2-phenoxyacetamide, 2-(3-Chlorophenyl)-7-(3,4-dimethoxyphenyl)-5-methyl-4,7-dihydro[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxamide, N-(2-chlorobenzyl)-2-[5-(3,4-dimethylphenyl)-4,6-dioxo-4,5,6,6a-tetrahydropyrrolo[3,4-d][1,2,3]triazol-1(3aH)-yl]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 C21H20ClN5O3?

C21H20ClN5O3 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.