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Molecular formula

C21H17ClN2O3S2

24 compounds have this formula on CompoundList.

Molar mass
444.95g/mol
Monoisotopic mass
444.0369Da
Atoms
46
Elements
6
Rings plus double bonds
14

The formula C21H17ClN2O3S2 describes a molecule made of 21 carbon atoms, 17 hydrogen atoms, 1 chlorine atom, 2 nitrogen atoms, 3 oxygen atoms and 2 sulfur 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 × 2156.69%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 173.85%
    1.008 × 17 = 17.136 g/mol
  • Cl Chlorine × 17.97%
    35.45 × 1 = 35.450 g/mol
  • N Nitrogen × 26.30%
    14.007 × 2 = 28.014 g/mol
  • O Oxygen × 310.79%
    15.999 × 3 = 47.997 g/mol
  • S Sulfur × 214.41%
    32.06 × 2 = 64.120 g/mol
Look up another formula

Compounds with the formula C21H17ClN2O3S2

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

Showing 1 to 24 of 24 compounds

N-(4-Chloro-phenyl)-2-(2-oxo-5a,11b-dihydro-5H,6H-7-oxa-1,4-dithia-3-aza-cyclopenta[c]phenanthren-3-yl)-acetamide chemical structure, C21H17ClN2O3S2, CAS 850189-80-9
N-(4-Chloro-phenyl)-2-(2-oxo-5a,11b-dihydro-5H,6H-7-oxa-1,4-dithia-3-aza-cyclopenta[c]phenanthren-3-yl)-acetamide
CAS 850189-80-9C21H17ClN2O3S2
Benzyl 2-((3-(4-chlorophenyl)-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)acetate chemical structure, C21H17ClN2O3S2, CAS 687565-39-5
Benzyl 2-((3-(4-chlorophenyl)-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)acetate
CAS 687565-39-5C21H17ClN2O3S2
2-((2-(4-Chlorophenyl)-2-oxoethyl)thio)-3-(2-methoxyphenyl)-6,7-dihydrothieno[3,2-d]pyrimidin-4(3H)-one chemical structure, C21H17ClN2O3S2, CAS 850915-49-0
2-((2-(4-Chlorophenyl)-2-oxoethyl)thio)-3-(2-methoxyphenyl)-6,7-dihydrothieno[3,2-d]pyrimidin-4(3H)-one
CAS 850915-49-0C21H17ClN2O3S2
Ethyl (2E)-2-[(4-chlorophenyl)methylidene]-7-methyl-3-oxo-5-thiophen-2-yl-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate chemical structure, C21H17ClN2O3S2, CAS 306309-84-2
Ethyl (2E)-2-[(4-chlorophenyl)methylidene]-7-methyl-3-oxo-5-thiophen-2-yl-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate
CAS 306309-84-2C21H17ClN2O3S2
Ethyl (2E)-2-[(2-chlorophenyl)methylidene]-7-methyl-3-oxo-5-thiophen-2-yl-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate chemical structure, C21H17ClN2O3S2, CAS 324072-20-0
Ethyl (2E)-2-[(2-chlorophenyl)methylidene]-7-methyl-3-oxo-5-thiophen-2-yl-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate
CAS 324072-20-0C21H17ClN2O3S2
(E)-Ethyl 2-(3-chlorobenzylidene)-7-methyl-3-oxo-5-(thiophen-2-yl)-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate chemical structure, C21H17ClN2O3S2, CAS 357223-80-4
(E)-Ethyl 2-(3-chlorobenzylidene)-7-methyl-3-oxo-5-(thiophen-2-yl)-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate
CAS 357223-80-4C21H17ClN2O3S2
Methyl (2Z)-5-(2-chlorophenyl)-7-methyl-2-[(3-methylthiophen-2-yl)methylidene]-3-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate chemical structure, C21H17ClN2O3S2, CAS 324567-56-8
Methyl (2Z)-5-(2-chlorophenyl)-7-methyl-2-[(3-methylthiophen-2-yl)methylidene]-3-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate
CAS 324567-56-8C21H17ClN2O3S2
(Z)-1-Benzyl-3-(((5-chloro-2-methylphenyl)amino)methylene)-1H-thieno[3,2-c][1,2]thiazin-4(3H)-one 2,2-dioxide chemical structure, C21H17ClN2O3S2, CAS 894670-55-4
(Z)-1-Benzyl-3-(((5-chloro-2-methylphenyl)amino)methylene)-1H-thieno[3,2-c][1,2]thiazin-4(3H)-one 2,2-dioxide
CAS 894670-55-4C21H17ClN2O3S2
(Z)-1-Benzyl-3-(((2-chlorobenzyl)amino)methylene)-1H-thieno[3,2-c][1,2]thiazin-4(3H)-one 2,2-dioxide chemical structure, C21H17ClN2O3S2, CAS 894670-91-8
(Z)-1-Benzyl-3-(((2-chlorobenzyl)amino)methylene)-1H-thieno[3,2-c][1,2]thiazin-4(3H)-one 2,2-dioxide
CAS 894670-91-8C21H17ClN2O3S2
(3Z)-3-{[(3-Chlorophenyl)amino]methylene}-1-(4-methylbenzyl)-1H-thieno[3,2-c][1,2]thiazin-4(3H)-one 2,2-dioxide chemical structure, C21H17ClN2O3S2, CAS 894673-57-5
(3Z)-3-{[(3-Chlorophenyl)amino]methylene}-1-(4-methylbenzyl)-1H-thieno[3,2-c][1,2]thiazin-4(3H)-one 2,2-dioxide
CAS 894673-57-5C21H17ClN2O3S2
(3Z)-3-{[(4-Chlorophenyl)amino]methylene}-1-(4-methylbenzyl)-1H-thieno[3,2-c][1,2]thiazin-4(3H)-one 2,2-dioxide chemical structure, C21H17ClN2O3S2, CAS 894673-64-4
(3Z)-3-{[(4-Chlorophenyl)amino]methylene}-1-(4-methylbenzyl)-1H-thieno[3,2-c][1,2]thiazin-4(3H)-one 2,2-dioxide
CAS 894673-64-4C21H17ClN2O3S2
Ethyl (2E)-5-(4-chlorophenyl)-7-methyl-3-oxo-2-(thiophen-2-ylmethylidene)-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate chemical structure, C21H17ClN2O3S2, CAS 313068-71-2
Ethyl (2E)-5-(4-chlorophenyl)-7-methyl-3-oxo-2-(thiophen-2-ylmethylidene)-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate
CAS 313068-71-2C21H17ClN2O3S2
2-[(4-Chlorophenyl)methylsulfanyl]-N-[4-(4-nitrophenyl)sulfanylphenyl]acetamide chemical structure, C21H17ClN2O3S2, CAS 381171-04-6
2-[(4-Chlorophenyl)methylsulfanyl]-N-[4-(4-nitrophenyl)sulfanylphenyl]acetamide
CAS 381171-04-6C21H17ClN2O3S2
Methyl (2E)-5-(4-chlorophenyl)-7-methyl-2-[(3-methyl-2-thienyl)methylene]-3-oxo-2,3-dihydro-5H-[1,3]thiazolo[3,2-A]pyrimidine-6-carboxylate chemical structure, C21H17ClN2O3S2, CAS 374105-56-3
Methyl (2E)-5-(4-chlorophenyl)-7-methyl-2-[(3-methyl-2-thienyl)methylene]-3-oxo-2,3-dihydro-5H-[1,3]thiazolo[3,2-A]pyrimidine-6-carboxylate
CAS 374105-56-3C21H17ClN2O3S2
[(5-Chloro-2-methoxyphenyl)sulfonyl][4-(6-methylbenzothiazol-2-yl)phenyl]amine chemical structure, C21H17ClN2O3S2, CAS 873587-17-8
[(5-Chloro-2-methoxyphenyl)sulfonyl][4-(6-methylbenzothiazol-2-yl)phenyl]amine
CAS 873587-17-8C21H17ClN2O3S2
(Z)-1-Benzyl-3-(((3-chloro-2-methylphenyl)amino)methylene)-1H-thieno[3,2-c][1,2]thiazin-4(3H)-one 2,2-dioxide chemical structure, C21H17ClN2O3S2, CAS 894670-20-3
(Z)-1-Benzyl-3-(((3-chloro-2-methylphenyl)amino)methylene)-1H-thieno[3,2-c][1,2]thiazin-4(3H)-one 2,2-dioxide
CAS 894670-20-3C21H17ClN2O3S2
(Z)-1-Benzyl-3-(((4-chlorobenzyl)amino)methylene)-1H-thieno[3,2-c][1,2]thiazin-4(3H)-one 2,2-dioxide chemical structure, C21H17ClN2O3S2, CAS 894671-03-5
(Z)-1-Benzyl-3-(((4-chlorobenzyl)amino)methylene)-1H-thieno[3,2-c][1,2]thiazin-4(3H)-one 2,2-dioxide
CAS 894671-03-5C21H17ClN2O3S2
2-((2-(4-Chlorophenyl)-2-oxoethyl)thio)-3-(4-methoxyphenyl)-6,7-dihydrothieno[3,2-d]pyrimidin-4(3H)-one chemical structure, C21H17ClN2O3S2, CAS 862806-55-1
2-((2-(4-Chlorophenyl)-2-oxoethyl)thio)-3-(4-methoxyphenyl)-6,7-dihydrothieno[3,2-d]pyrimidin-4(3H)-one
CAS 862806-55-1C21H17ClN2O3S2
3-((4-Chlorophenyl)thio)-N-(4-(7-methoxybenzofuran-2-yl)thiazol-2-yl)propanamide chemical structure, C21H17ClN2O3S2, CAS 921568-20-9
3-((4-Chlorophenyl)thio)-N-(4-(7-methoxybenzofuran-2-yl)thiazol-2-yl)propanamide
CAS 921568-20-9C21H17ClN2O3S2
3-(2-Chlorophenyl)-N-(2-hydroxy-2-(thiophen-2-yl)-2-(thiophen-3-yl)ethyl)-5-methylisoxazole-4-carboxamide chemical structure, C21H17ClN2O3S2, CAS 2034482-73-8
3-(2-Chlorophenyl)-N-(2-hydroxy-2-(thiophen-2-yl)-2-(thiophen-3-yl)ethyl)-5-methylisoxazole-4-carboxamide
CAS 2034482-73-8C21H17ClN2O3S2
N-(2-{[2,2'-Bithiophene]-5-yl}-2-hydroxyethyl)-3-(2-chlorophenyl)-5-methyl-1,2-oxazole-4-carboxamide chemical structure, C21H17ClN2O3S2, CAS 2097913-66-9
N-(2-{[2,2'-Bithiophene]-5-yl}-2-hydroxyethyl)-3-(2-chlorophenyl)-5-methyl-1,2-oxazole-4-carboxamide
CAS 2097913-66-9C21H17ClN2O3S2
Ethyl (2E)-2-[(2-chlorophenyl)methylidene]-7-methyl-3-oxo-5-(thiophen-2-yl)-2H,3H,5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate chemical structure, C21H17ClN2O3S2
Ethyl (2E)-2-[(2-chlorophenyl)methylidene]-7-methyl-3-oxo-5-(thiophen-2-yl)-2H,3H,5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate
C21H17ClN2O3S2
1-(2-Chlorophenyl)-5-[5-(3-methanesulfonylphenyl)thiophen-2-yl]-3-methoxy-1H-pyrazole chemical structure, C21H17ClN2O3S2, CAS 1033585-45-3
1-(2-Chlorophenyl)-5-[5-(3-methanesulfonylphenyl)thiophen-2-yl]-3-methoxy-1H-pyrazole
CAS 1033585-45-3C21H17ClN2O3S2
Ethyl (2E)-2-[(4-chlorophenyl)methylidene]-7-methyl-3-oxo-5-(thiophen-2-yl)-2H,3H,5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate chemical structure, C21H17ClN2O3S2
Ethyl (2E)-2-[(4-chlorophenyl)methylidene]-7-methyl-3-oxo-5-(thiophen-2-yl)-2H,3H,5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate
C21H17ClN2O3S2

Frequently asked questions

What is the molar mass of C21H17ClN2O3S2?

The molar mass of C21H17ClN2O3S2 is 444.95 g/mol, calculated from standard atomic weights for 21 carbon atoms, 17 hydrogen atoms, 1 chlorine atom, 2 nitrogen atoms, 3 oxygen atoms and 2 sulfur atoms. The monoisotopic mass is 444.0369 Da.

How many compounds have the formula C21H17ClN2O3S2?

CompoundList lists 24 compounds with the molecular formula C21H17ClN2O3S2, including N-(4-Chloro-phenyl)-2-(2-oxo-5a,11b-dihydro-5H,6H-7-oxa-1,4-dithia-3-aza-cyclopenta[c]phenanthren-3-yl)-acetamide, Benzyl 2-((3-(4-chlorophenyl)-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)acetate, 2-((2-(4-Chlorophenyl)-2-oxoethyl)thio)-3-(2-methoxyphenyl)-6,7-dihydrothieno[3,2-d]pyrimidin-4(3H)-one. 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 C21H17ClN2O3S2?

C21H17ClN2O3S2 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.