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Molecular formula

C21H17ClN4O3S

35 compounds have this formula on CompoundList.

Molar mass
440.90g/mol
Monoisotopic mass
440.0710Da
Atoms
47
Elements
6
Rings plus double bonds
15

The formula C21H17ClN4O3S describes a molecule made of 21 carbon atoms, 17 hydrogen atoms, 1 chlorine atom, 4 nitrogen atoms, 3 oxygen atoms and 1 sulfur atom. 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 × 2157.21%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 173.89%
    1.008 × 17 = 17.136 g/mol
  • Cl Chlorine × 18.04%
    35.45 × 1 = 35.450 g/mol
  • N Nitrogen × 412.71%
    14.007 × 4 = 56.028 g/mol
  • O Oxygen × 310.89%
    15.999 × 3 = 47.997 g/mol
  • S Sulfur × 17.27%
    32.06 × 1 = 32.060 g/mol
Look up another formula

Compounds with the formula C21H17ClN4O3S

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

Showing 1 to 35 of 35 compounds

Methyl 2-[(4E)-1-(1,3-benzothiazol-2-yl)-4-[1-(4-chloroanilino)ethylidene]-5-oxopyrazol-3-yl]acetate chemical structure, C21H17ClN4O3S, CAS 521327-92-4
Methyl 2-[(4E)-1-(1,3-benzothiazol-2-yl)-4-[1-(4-chloroanilino)ethylidene]-5-oxopyrazol-3-yl]acetate
CAS 521327-92-4C21H17ClN4O3S
3-[[4-(4-Chlorophenyl)-5-(quinolin-8-yloxymethyl)-1,2,4-triazol-3-yl]sulfanyl]propanoic acid chemical structure, C21H17ClN4O3S, CAS 690249-83-3
3-[[4-(4-Chlorophenyl)-5-(quinolin-8-yloxymethyl)-1,2,4-triazol-3-yl]sulfanyl]propanoic acid
CAS 690249-83-3C21H17ClN4O3S
Ethyl [10-(4-chlorophenyl)-4-oxo-4,7,8,9-tetrahydro-3H-cyclopenta[5',6']pyrido[3',2':4,5]thieno[3,2-d][1,2,3]triazin-3-yl]acetate chemical structure, C21H17ClN4O3S, CAS 499142-34-6
Ethyl [10-(4-chlorophenyl)-4-oxo-4,7,8,9-tetrahydro-3H-cyclopenta[5',6']pyrido[3',2':4,5]thieno[3,2-d][1,2,3]triazin-3-yl]acetate
CAS 499142-34-6C21H17ClN4O3S
1-Allyl-3-[(4-chlorophenyl)sulfonyl]-2-imino-8-methyl-1,2-dihydro-5H-dipyrido[1,2-a:2',3'-d]pyrimidin-5-one chemical structure, C21H17ClN4O3S, CAS 606959-31-3
1-Allyl-3-[(4-chlorophenyl)sulfonyl]-2-imino-8-methyl-1,2-dihydro-5H-dipyrido[1,2-a:2',3'-d]pyrimidin-5-one
CAS 606959-31-3C21H17ClN4O3S
1-Allyl-3-[(4-chlorophenyl)sulfonyl]-2-imino-10-methyl-1,2-dihydro-5H-dipyrido[1,2-a:2,3-d]pyrimidin-5-one chemical structure, C21H17ClN4O3S, CAS 578762-56-8
1-Allyl-3-[(4-chlorophenyl)sulfonyl]-2-imino-10-methyl-1,2-dihydro-5H-dipyrido[1,2-a:2,3-d]pyrimidin-5-one
CAS 578762-56-8C21H17ClN4O3S
Methyl 4-((2-(1H-pyrazol-1-yl)ethyl)(4-chlorobenzo[d]thiazol-2-yl)carbamoyl)benzoate chemical structure, C21H17ClN4O3S, CAS 1172021-78-1
Methyl 4-((2-(1H-pyrazol-1-yl)ethyl)(4-chlorobenzo[d]thiazol-2-yl)carbamoyl)benzoate
CAS 1172021-78-1C21H17ClN4O3S
N-(2-Chlorobenzyl)-2-(2,4-dioxo-3-(thiophen-2-ylmethyl)-3,4-dihydropyrido[3,2-d]pyrimidin-1(2H)-yl)acetamide chemical structure, C21H17ClN4O3S, CAS 955801-59-9
N-(2-Chlorobenzyl)-2-(2,4-dioxo-3-(thiophen-2-ylmethyl)-3,4-dihydropyrido[3,2-d]pyrimidin-1(2H)-yl)acetamide
CAS 955801-59-9C21H17ClN4O3S
7-(4-Chlorophenyl)-2-[4-(2-furoyl)piperazin-1-yl]thieno[3,2-d]pyrimidin-4(3H)-one chemical structure, C21H17ClN4O3S, CAS 1226446-87-2
7-(4-Chlorophenyl)-2-[4-(2-furoyl)piperazin-1-yl]thieno[3,2-d]pyrimidin-4(3H)-one
CAS 1226446-87-2C21H17ClN4O3S
7-(2-Chlorobenzyl)-3-methyl-8-[(2-oxo-2-phenylethyl)sulfanyl]-3,7-dihydro-1H-purine-2,6-dione chemical structure, C21H17ClN4O3S, CAS 316358-98-2
7-(2-Chlorobenzyl)-3-methyl-8-[(2-oxo-2-phenylethyl)sulfanyl]-3,7-dihydro-1H-purine-2,6-dione
CAS 316358-98-2C21H17ClN4O3S
N'-[(1E)-{4-[(4-Chlorophenyl)sulfanyl]-3-nitrophenyl}methylidene]-2-(phenylamino)acetohydrazide chemical structure, C21H17ClN4O3S, CAS 329058-87-9
N'-[(1E)-{4-[(4-Chlorophenyl)sulfanyl]-3-nitrophenyl}methylidene]-2-(phenylamino)acetohydrazide
CAS 329058-87-9C21H17ClN4O3S
3-(3-Chlorophenyl)-6-({[3-(2,4-dimethoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl}sulfanyl)pyridazine chemical structure, C21H17ClN4O3S, CAS 1114909-49-7
3-(3-Chlorophenyl)-6-({[3-(2,4-dimethoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl}sulfanyl)pyridazine
CAS 1114909-49-7C21H17ClN4O3S
N-(4-Chlorophenethyl)-2-(2-oxo-5-(3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl)pyridin-1(2H)-yl)acetamide chemical structure, C21H17ClN4O3S, CAS 1396857-42-3
N-(4-Chlorophenethyl)-2-(2-oxo-5-(3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl)pyridin-1(2H)-yl)acetamide
CAS 1396857-42-3C21H17ClN4O3S
7-Chloro-2-(((6-(3,4-dimethoxyphenyl)pyridazin-3-yl)thio)methyl)-4H-pyrido[1,2-a]pyrimidin-4-one chemical structure, C21H17ClN4O3S, CAS 1428359-87-8
7-Chloro-2-(((6-(3,4-dimethoxyphenyl)pyridazin-3-yl)thio)methyl)-4H-pyrido[1,2-a]pyrimidin-4-one
CAS 1428359-87-8C21H17ClN4O3S
1-(4-Chlorophenyl)-2-((3-(3,4-dimethoxyphenyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio)ethanone chemical structure, C21H17ClN4O3S, CAS 852438-05-2
1-(4-Chlorophenyl)-2-((3-(3,4-dimethoxyphenyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio)ethanone
CAS 852438-05-2C21H17ClN4O3S
3-{[2-(3-Chlorophenyl)-2-oxoethyl]thio}-7-(4-ethoxyphenyl)[1,2,4]triazolo[4,3-a]pyrazin-8(7H)-one chemical structure, C21H17ClN4O3S, CAS 1242965-50-9
3-{[2-(3-Chlorophenyl)-2-oxoethyl]thio}-7-(4-ethoxyphenyl)[1,2,4]triazolo[4,3-a]pyrazin-8(7H)-one
CAS 1242965-50-9C21H17ClN4O3S
3-Chloro-2-methyl-N-(2-((3-(pyridin-4-yl)-1,2,4-oxadiazol-5-yl)methyl)phenyl)benzenesulfonamide chemical structure, C21H17ClN4O3S, CAS 1797181-43-1
3-Chloro-2-methyl-N-(2-((3-(pyridin-4-yl)-1,2,4-oxadiazol-5-yl)methyl)phenyl)benzenesulfonamide
CAS 1797181-43-1C21H17ClN4O3S
3-(3-Chlorophenyl)-6-({[3-(3,4-dimethoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl}sulfanyl)pyridazine chemical structure, C21H17ClN4O3S, CAS 1114945-15-1
3-(3-Chlorophenyl)-6-({[3-(3,4-dimethoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl}sulfanyl)pyridazine
CAS 1114945-15-1C21H17ClN4O3S
3-(4-Chlorophenyl)-5-(((6-(3,4-dimethoxyphenyl)pyridazin-3-yl)thio)methyl)-1,2,4-oxadiazole chemical structure, C21H17ClN4O3S, CAS 1111290-74-4
3-(4-Chlorophenyl)-5-(((6-(3,4-dimethoxyphenyl)pyridazin-3-yl)thio)methyl)-1,2,4-oxadiazole
CAS 1111290-74-4C21H17ClN4O3S
N-(5-Chloro-2-methoxyphenyl)-2-(2-methyl-4-oxo-7-phenylthiazolo[4,5-d]pyridazin-5(4H)-yl)acetamide chemical structure, C21H17ClN4O3S, CAS 941986-54-5
N-(5-Chloro-2-methoxyphenyl)-2-(2-methyl-4-oxo-7-phenylthiazolo[4,5-d]pyridazin-5(4H)-yl)acetamide
CAS 941986-54-5C21H17ClN4O3S
2-(7-(4-Chlorophenyl)-2-methyl-4-oxothiazolo[4,5-d]pyridazin-5(4H)-yl)-N-(2-methoxyphenyl)acetamide chemical structure, C21H17ClN4O3S, CAS 941897-59-2
2-(7-(4-Chlorophenyl)-2-methyl-4-oxothiazolo[4,5-d]pyridazin-5(4H)-yl)-N-(2-methoxyphenyl)acetamide
CAS 941897-59-2C21H17ClN4O3S
2-(7-(4-Chlorophenyl)-2-methyl-4-oxothiazolo[4,5-d]pyridazin-5(4H)-yl)-N-(3-methoxyphenyl)acetamide chemical structure, C21H17ClN4O3S, CAS 941942-76-3
2-(7-(4-Chlorophenyl)-2-methyl-4-oxothiazolo[4,5-d]pyridazin-5(4H)-yl)-N-(3-methoxyphenyl)acetamide
CAS 941942-76-3C21H17ClN4O3S
2-(7-(4-Chlorophenyl)-2-methyl-4-oxothiazolo[4,5-d]pyridazin-5(4H)-yl)-N-(4-methoxyphenyl)acetamide chemical structure, C21H17ClN4O3S, CAS 941949-23-1
2-(7-(4-Chlorophenyl)-2-methyl-4-oxothiazolo[4,5-d]pyridazin-5(4H)-yl)-N-(4-methoxyphenyl)acetamide
CAS 941949-23-1C21H17ClN4O3S
N-(3-Chlorophenyl)-2-(7-(4-methoxyphenyl)-2-methyl-4-oxothiazolo[4,5-d]pyridazin-5(4H)-yl)acetamide chemical structure, C21H17ClN4O3S, CAS 941897-79-6
N-(3-Chlorophenyl)-2-(7-(4-methoxyphenyl)-2-methyl-4-oxothiazolo[4,5-d]pyridazin-5(4H)-yl)acetamide
CAS 941897-79-6C21H17ClN4O3S
N-(4-Chlorophenyl)-2-(7-(4-methoxyphenyl)-2-methyl-4-oxothiazolo[4,5-d]pyridazin-5(4H)-yl)acetamide chemical structure, C21H17ClN4O3S, CAS 941949-48-0
N-(4-Chlorophenyl)-2-(7-(4-methoxyphenyl)-2-methyl-4-oxothiazolo[4,5-d]pyridazin-5(4H)-yl)acetamide
CAS 941949-48-0C21H17ClN4O3S

Frequently asked questions

What is the molar mass of C21H17ClN4O3S?

The molar mass of C21H17ClN4O3S is 440.90 g/mol, calculated from standard atomic weights for 21 carbon atoms, 17 hydrogen atoms, 1 chlorine atom, 4 nitrogen atoms, 3 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 440.0710 Da.

How many compounds have the formula C21H17ClN4O3S?

CompoundList lists 35 compounds with the molecular formula C21H17ClN4O3S, including Methyl 2-[(4E)-1-(1,3-benzothiazol-2-yl)-4-[1-(4-chloroanilino)ethylidene]-5-oxopyrazol-3-yl]acetate, 3-[[4-(4-Chlorophenyl)-5-(quinolin-8-yloxymethyl)-1,2,4-triazol-3-yl]sulfanyl]propanoic acid, Ethyl [10-(4-chlorophenyl)-4-oxo-4,7,8,9-tetrahydro-3H-cyclopenta[5',6']pyrido[3',2':4,5]thieno[3,2-d][1,2,3]triazin-3-yl]acetate. 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 C21H17ClN4O3S?

C21H17ClN4O3S 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.