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Molecular formula

C21H17N3O5S2

27 compounds have this formula on CompoundList.

Molar mass
455.50g/mol
Monoisotopic mass
455.0610Da
Atoms
48
Elements
5
Rings plus double bonds
15

The formula C21H17N3O5S2 describes a molecule made of 21 carbon atoms, 17 hydrogen atoms, 3 nitrogen atoms, 5 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 × 2155.37%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 173.76%
    1.008 × 17 = 17.136 g/mol
  • N Nitrogen × 39.23%
    14.007 × 3 = 42.021 g/mol
  • O Oxygen × 517.56%
    15.999 × 5 = 79.995 g/mol
  • S Sulfur × 214.08%
    32.06 × 2 = 64.120 g/mol
Look up another formula

Compounds with the formula C21H17N3O5S2

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

Showing 1 to 27 of 27 compounds

6,8-Dimethyl-4-oxo-N-[4-(1,3-thiazol-2-ylsulfamoyl)phenyl]chromene-2-carboxamide chemical structure, C21H17N3O5S2, CAS 896805-73-5
6,8-Dimethyl-4-oxo-N-[4-(1,3-thiazol-2-ylsulfamoyl)phenyl]chromene-2-carboxamide
CAS 896805-73-5C21H17N3O5S2
(Z)-Benzyl 2-((5-(3-(benzo[d][1,3]dioxol-5-yl)acrylamido)-1,3,4-thiadiazol-2-yl)thio)acetate chemical structure, C21H17N3O5S2, CAS 1164554-75-9
(Z)-Benzyl 2-((5-(3-(benzo[d][1,3]dioxol-5-yl)acrylamido)-1,3,4-thiadiazol-2-yl)thio)acetate
CAS 1164554-75-9C21H17N3O5S2
2-(7-Methyl-2-oxo-2H-chromen-4-yl)-N-(4-(N-(thiazol-2-yl)sulfamoyl)phenyl)acetamide chemical structure, C21H17N3O5S2, CAS 919860-43-8
2-(7-Methyl-2-oxo-2H-chromen-4-yl)-N-(4-(N-(thiazol-2-yl)sulfamoyl)phenyl)acetamide
CAS 919860-43-8C21H17N3O5S2
(Z)-Methyl 2-(5,7-dimethyl-2-((5-nitrobenzo[b]thiophene-2-carbonyl)imino)benzo[d]thiazol-3(2H)-yl)acetate chemical structure, C21H17N3O5S2, CAS 1321704-83-9
(Z)-Methyl 2-(5,7-dimethyl-2-((5-nitrobenzo[b]thiophene-2-carbonyl)imino)benzo[d]thiazol-3(2H)-yl)acetate
CAS 1321704-83-9C21H17N3O5S2
Ethyl (2E)-7-methyl-2-[(4-nitrophenyl)methylidene]-3-oxo-5-thiophen-2-yl-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate chemical structure, C21H17N3O5S2, CAS 324072-31-3
Ethyl (2E)-7-methyl-2-[(4-nitrophenyl)methylidene]-3-oxo-5-thiophen-2-yl-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate
CAS 324072-31-3C21H17N3O5S2
Ethyl 5-{3-nitrophenyl}-7-methyl-3-oxo-2-(2-thienylmethylene)-2,3-dihydro-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate chemical structure, C21H17N3O5S2, CAS 324073-95-2
Ethyl 5-{3-nitrophenyl}-7-methyl-3-oxo-2-(2-thienylmethylene)-2,3-dihydro-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate
CAS 324073-95-2C21H17N3O5S2
4-(Dimethylsulfamoyl)-N-[4-(2-oxochromen-3-yl)-1,3-thiazol-2-yl]benzamide chemical structure, C21H17N3O5S2, CAS 477547-24-3
4-(Dimethylsulfamoyl)-N-[4-(2-oxochromen-3-yl)-1,3-thiazol-2-yl]benzamide
CAS 477547-24-3C21H17N3O5S2
N-(2,3-Dihydro-1,4-benzodioxin-6-yl)-N-methyl-2-(3-phenyl-1,2,4-oxadiazol-5-yl)thiophene-3-sulfonamide chemical structure, C21H17N3O5S2, CAS 1189685-60-6
N-(2,3-Dihydro-1,4-benzodioxin-6-yl)-N-methyl-2-(3-phenyl-1,2,4-oxadiazol-5-yl)thiophene-3-sulfonamide
CAS 1189685-60-6C21H17N3O5S2
Ethyl 3-(4-methoxyphenyl)-4-oxo-5-(thiophene-2-carboxamido)-3,4-dihydrothieno[3,4-d]pyridazine-1-carboxylate chemical structure, C21H17N3O5S2, CAS 851977-74-7
Ethyl 3-(4-methoxyphenyl)-4-oxo-5-(thiophene-2-carboxamido)-3,4-dihydrothieno[3,4-d]pyridazine-1-carboxylate
CAS 851977-74-7C21H17N3O5S2
Methyl 4-[3-(2,4-dimethyl-1,3-thiazole-5-carbonyl)-4-hydroxy-5-oxo-1-(1,3-thiazol-2-yl)-2,5-dihydro-1H-pyrrol-2-yl]benzoate chemical structure, C21H17N3O5S2, CAS 623923-24-0
Methyl 4-[3-(2,4-dimethyl-1,3-thiazole-5-carbonyl)-4-hydroxy-5-oxo-1-(1,3-thiazol-2-yl)-2,5-dihydro-1H-pyrrol-2-yl]benzoate
CAS 623923-24-0C21H17N3O5S2
2-[3-(1,3-Benzodioxol-5-yl)-1,2,4-oxadiazol-5-yl]-N-methyl-N-(4-methylphenyl)thiophene-3-sulfonamide chemical structure, C21H17N3O5S2, CAS 1040678-40-7
2-[3-(1,3-Benzodioxol-5-yl)-1,2,4-oxadiazol-5-yl]-N-methyl-N-(4-methylphenyl)thiophene-3-sulfonamide
CAS 1040678-40-7C21H17N3O5S2
N-(1,3-Benzodioxol-5-yl)-N-methyl-2-[3-(3-methylphenyl)-1,2,4-oxadiazol-5-yl]thiophene-3-sulfonamide chemical structure, C21H17N3O5S2, CAS 1105196-01-7
N-(1,3-Benzodioxol-5-yl)-N-methyl-2-[3-(3-methylphenyl)-1,2,4-oxadiazol-5-yl]thiophene-3-sulfonamide
CAS 1105196-01-7C21H17N3O5S2
N-(1,3-Benzodioxol-5-yl)-N-methyl-2-[3-(4-methylphenyl)-1,2,4-oxadiazol-5-yl]thiophene-3-sulfonamide chemical structure, C21H17N3O5S2, CAS 1105246-82-9
N-(1,3-Benzodioxol-5-yl)-N-methyl-2-[3-(4-methylphenyl)-1,2,4-oxadiazol-5-yl]thiophene-3-sulfonamide
CAS 1105246-82-9C21H17N3O5S2
(Z)-Methyl 2-(2-((2-naphthoyl)imino)-6-sulfamoylbenzo[d]thiazol-3(2H)-yl)acetate chemical structure, C21H17N3O5S2, CAS 865199-20-8
(Z)-Methyl 2-(2-((2-naphthoyl)imino)-6-sulfamoylbenzo[d]thiazol-3(2H)-yl)acetate
CAS 865199-20-8C21H17N3O5S2
(Z)-Ethyl 2-((benzo[d]thiazole-6-carbonyl)imino)-3-(2-methoxy-2-oxoethyl)-2,3-dihydrobenzo[d]thiazole-6-carboxylate chemical structure, C21H17N3O5S2, CAS 897734-11-1
(Z)-Ethyl 2-((benzo[d]thiazole-6-carbonyl)imino)-3-(2-methoxy-2-oxoethyl)-2,3-dihydrobenzo[d]thiazole-6-carboxylate
CAS 897734-11-1C21H17N3O5S2
(Z)-Methyl 2-(2-((1-naphthoyl)imino)-6-sulfamoylbenzo[d]thiazol-3(2H)-yl)acetate chemical structure, C21H17N3O5S2, CAS 865199-18-4
(Z)-Methyl 2-(2-((1-naphthoyl)imino)-6-sulfamoylbenzo[d]thiazol-3(2H)-yl)acetate
CAS 865199-18-4C21H17N3O5S2
6-Ethyl-4-oxo-N-[4-(1,3-thiazol-2-ylsulfamoyl)phenyl]-4H-chromene-2-carboxamide chemical structure, C21H17N3O5S2, CAS 874355-67-6
6-Ethyl-4-oxo-N-[4-(1,3-thiazol-2-ylsulfamoyl)phenyl]-4H-chromene-2-carboxamide
CAS 874355-67-6C21H17N3O5S2
5,7-Dimethyl-4-oxo-N-[4-(1,3-thiazol-2-ylsulfamoyl)phenyl]-4H-chromene-2-carboxamide chemical structure, C21H17N3O5S2, CAS 898486-19-6
5,7-Dimethyl-4-oxo-N-[4-(1,3-thiazol-2-ylsulfamoyl)phenyl]-4H-chromene-2-carboxamide
CAS 898486-19-6C21H17N3O5S2
6-(((5-(Cyclopropanecarboxamido)-1,3,4-thiadiazol-2-yl)thio)methyl)-4-oxo-4H-pyran-3-yl cinnamate chemical structure, C21H17N3O5S2, CAS 877651-57-5
6-(((5-(Cyclopropanecarboxamido)-1,3,4-thiadiazol-2-yl)thio)methyl)-4-oxo-4H-pyran-3-yl cinnamate
CAS 877651-57-5C21H17N3O5S2
2-(3-(Benzo[d][1,3]dioxol-5-yl)-1,2,4-oxadiazol-5-yl)-N-methyl-N-(m-tolyl)thiophene-3-sulfonamide chemical structure, C21H17N3O5S2, CAS 1251625-98-5
2-(3-(Benzo[d][1,3]dioxol-5-yl)-1,2,4-oxadiazol-5-yl)-N-methyl-N-(m-tolyl)thiophene-3-sulfonamide
CAS 1251625-98-5C21H17N3O5S2
4-{2-Cyano-2-[(1,3-thiazol-2-yl)carbamoyl]eth-1-en-1-yl}-2-methoxyphenyl 4-methylbenzene-1-sulfonate chemical structure, C21H17N3O5S2, CAS 753478-05-6
4-{2-Cyano-2-[(1,3-thiazol-2-yl)carbamoyl]eth-1-en-1-yl}-2-methoxyphenyl 4-methylbenzene-1-sulfonate
CAS 753478-05-6C21H17N3O5S2
Ethyl (2E)-7-methyl-2-[(4-nitrophenyl)methylidene]-3-oxo-5-(thiophen-2-yl)-2H,3H,5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate chemical structure, C21H17N3O5S2
Ethyl (2E)-7-methyl-2-[(4-nitrophenyl)methylidene]-3-oxo-5-(thiophen-2-yl)-2H,3H,5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate
C21H17N3O5S2
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 3-[({12-oxo-7-thia-9,11-diazatricyclo[6.4.0.0,2,6]dodeca-1(8),2(6),9-trien-10-yl}methyl)sulfanyl]propanoate chemical structure, C21H17N3O5S2, CAS 2248286-06-6
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 3-[({12-oxo-7-thia-9,11-diazatricyclo[6.4.0.0,2,6]dodeca-1(8),2(6),9-trien-10-yl}methyl)sulfanyl]propanoate
CAS 2248286-06-6C21H17N3O5S2
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-({11-ethyl-12-oxo-7-thia-9,11-diazatricyclo[6.4.0.0,2,6]dodeca-1(8),2(6),9-trien-10-yl}sulfanyl)acetate chemical structure, C21H17N3O5S2, CAS 2248351-80-4
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-({11-ethyl-12-oxo-7-thia-9,11-diazatricyclo[6.4.0.0,2,6]dodeca-1(8),2(6),9-trien-10-yl}sulfanyl)acetate
CAS 2248351-80-4C21H17N3O5S2

Frequently asked questions

What is the molar mass of C21H17N3O5S2?

The molar mass of C21H17N3O5S2 is 455.50 g/mol, calculated from standard atomic weights for 21 carbon atoms, 17 hydrogen atoms, 3 nitrogen atoms, 5 oxygen atoms and 2 sulfur atoms. The monoisotopic mass is 455.0610 Da.

How many compounds have the formula C21H17N3O5S2?

CompoundList lists 27 compounds with the molecular formula C21H17N3O5S2, including 6,8-Dimethyl-4-oxo-N-[4-(1,3-thiazol-2-ylsulfamoyl)phenyl]chromene-2-carboxamide, (Z)-Benzyl 2-((5-(3-(benzo[d][1,3]dioxol-5-yl)acrylamido)-1,3,4-thiadiazol-2-yl)thio)acetate, 2-(7-Methyl-2-oxo-2H-chromen-4-yl)-N-(4-(N-(thiazol-2-yl)sulfamoyl)phenyl)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 C21H17N3O5S2?

C21H17N3O5S2 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.