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Molecular formula

C21H19N5O4S

49 compounds have this formula on CompoundList.

Molar mass
437.47g/mol
Monoisotopic mass
437.1158Da
Atoms
50
Elements
5
Rings plus double bonds
15

The formula C21H19N5O4S describes a molecule made of 21 carbon atoms, 19 hydrogen atoms, 5 nitrogen atoms, 4 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 × 2157.66%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 194.38%
    1.008 × 19 = 19.152 g/mol
  • N Nitrogen × 516.01%
    14.007 × 5 = 70.035 g/mol
  • O Oxygen × 414.63%
    15.999 × 4 = 63.996 g/mol
  • S Sulfur × 17.33%
    32.06 × 1 = 32.060 g/mol
Look up another formula

Compounds with the formula C21H19N5O4S

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

Showing 1 to 49 of 49 compounds

N-(4-{[4-(2H-1,2,3-benzotriazol-2-yl)-2-hydroxy-5-methylanilino]sulfonyl}phenyl)acetamide chemical structure, C21H19N5O4S, CAS 445464-59-5
N-(4-{[4-(2H-1,2,3-benzotriazol-2-yl)-2-hydroxy-5-methylanilino]sulfonyl}phenyl)acetamide
CAS 445464-59-5C21H19N5O4S
N-(4-Acetylamino-phenyl)-2-(5-furan-2-yl-4-furan-2-ylmethyl-4H-[1,2,4]triazol-3-ylsulfanyl)-acetamide chemical structure, C21H19N5O4S, CAS 577695-93-3
N-(4-Acetylamino-phenyl)-2-(5-furan-2-yl-4-furan-2-ylmethyl-4H-[1,2,4]triazol-3-ylsulfanyl)-acetamide
CAS 577695-93-3C21H19N5O4S
2-[4-[2-(4-Oxo-3H-phthalazin-1-yl)acetyl]piperazin-1-yl]sulfonylbenzonitrile chemical structure, C21H19N5O4S, CAS 851170-31-5
2-[4-[2-(4-Oxo-3H-phthalazin-1-yl)acetyl]piperazin-1-yl]sulfonylbenzonitrile
CAS 851170-31-5C21H19N5O4S
(4-(2-Aminothiazol-4-yl)-2-(1H-1,2,4-triazol-1-yl)phenyl)(3,4,5-trimethoxyphenyl)methanone chemical structure, C21H19N5O4S, CAS 1016543-77-3
(4-(2-Aminothiazol-4-yl)-2-(1H-1,2,4-triazol-1-yl)phenyl)(3,4,5-trimethoxyphenyl)methanone
CAS 1016543-77-3C21H19N5O4S
Ethyl 4-({[2-(1,3-benzothiazol-2-ylamino)-6-oxo-1,4,5,6-tetrahydropyrimidin-4-yl]carbonyl}amino)benzoate chemical structure, C21H19N5O4S, CAS 384371-03-3
Ethyl 4-({[2-(1,3-benzothiazol-2-ylamino)-6-oxo-1,4,5,6-tetrahydropyrimidin-4-yl]carbonyl}amino)benzoate
CAS 384371-03-3C21H19N5O4S
N-(2,4-Dimethoxyphenyl)-2-((4-oxo-1-phenyl-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidin-6-yl)thio)acetamide chemical structure, C21H19N5O4S, CAS 850912-04-8
N-(2,4-Dimethoxyphenyl)-2-((4-oxo-1-phenyl-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidin-6-yl)thio)acetamide
CAS 850912-04-8C21H19N5O4S
2-((5-(2-(1H-Benzo[d]imidazol-2-yl)ethyl)-1,3,4-oxadiazol-2-yl)thio)-N-(benzo[d][1,3]dioxol-5-ylmethyl)acetamide chemical structure, C21H19N5O4S, CAS 1226434-19-0
2-((5-(2-(1H-Benzo[d]imidazol-2-yl)ethyl)-1,3,4-oxadiazol-2-yl)thio)-N-(benzo[d][1,3]dioxol-5-ylmethyl)acetamide
CAS 1226434-19-0C21H19N5O4S
4-Acetyl-N-(2-((3-phenyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)oxy)ethyl)benzenesulfonamide chemical structure, C21H19N5O4S, CAS 1021082-28-9
4-Acetyl-N-(2-((3-phenyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)oxy)ethyl)benzenesulfonamide
CAS 1021082-28-9C21H19N5O4S
2,3-Dimethoxy-N-[1-(4-methyl-6-oxo-1,6-dihydropyrimidin-2-yl)-3-(thiophen-2-yl)-1H-pyrazol-5-yl]benzamide chemical structure, C21H19N5O4S, CAS 1170463-36-1
2,3-Dimethoxy-N-[1-(4-methyl-6-oxo-1,6-dihydropyrimidin-2-yl)-3-(thiophen-2-yl)-1H-pyrazol-5-yl]benzamide
CAS 1170463-36-1C21H19N5O4S
2-(2-Methoxyphenoxy)-N-[1-(4-methyl-6-oxo-1,6-dihydropyrimidin-2-yl)-3-(thiophen-2-yl)-1H-pyrazol-5-yl]acetamide chemical structure, C21H19N5O4S, CAS 1172235-77-6
2-(2-Methoxyphenoxy)-N-[1-(4-methyl-6-oxo-1,6-dihydropyrimidin-2-yl)-3-(thiophen-2-yl)-1H-pyrazol-5-yl]acetamide
CAS 1172235-77-6C21H19N5O4S
N-(2H-1,3-Benzodioxol-5-yl)-2-({5-oxo-4-propyl-4H,5H-[1,2,4]triazolo[4,3-a]quinazolin-1-yl}sulfanyl)acetamide chemical structure, C21H19N5O4S, CAS 850652-31-2
N-(2H-1,3-Benzodioxol-5-yl)-2-({5-oxo-4-propyl-4H,5H-[1,2,4]triazolo[4,3-a]quinazolin-1-yl}sulfanyl)acetamide
CAS 850652-31-2C21H19N5O4S
(E)-1-(3-((1-Methyl-1H-imidazol-2-yl)methylene)-2-oxoindolin-5-yl)-3-(4-(methylsulfonyl)phenyl)urea chemical structure, C21H19N5O4S, CAS 1821481-35-9
(E)-1-(3-((1-Methyl-1H-imidazol-2-yl)methylene)-2-oxoindolin-5-yl)-3-(4-(methylsulfonyl)phenyl)urea
CAS 1821481-35-9C21H19N5O4S
3-Methyl-8-[(4-nitrobenzyl)sulfanyl]-7-(2-phenylethyl)-3,7-dihydro-1H-purine-2,6-dione chemical structure, C21H19N5O4S, CAS 303969-43-9
3-Methyl-8-[(4-nitrobenzyl)sulfanyl]-7-(2-phenylethyl)-3,7-dihydro-1H-purine-2,6-dione
CAS 303969-43-9C21H19N5O4S
N-(3,4-Dimethoxyphenyl)-2-((4-oxo-1-phenyl-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidin-6-yl)thio)acetamide chemical structure, C21H19N5O4S, CAS 848225-50-3
N-(3,4-Dimethoxyphenyl)-2-((4-oxo-1-phenyl-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidin-6-yl)thio)acetamide
CAS 848225-50-3C21H19N5O4S
N-(5-(6-Methoxy-1H-indole-2-carbonyl)-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridin-2-yl)-5-methylisoxazole-3-carboxamide chemical structure, C21H19N5O4S, CAS 1421491-80-6
N-(5-(6-Methoxy-1H-indole-2-carbonyl)-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridin-2-yl)-5-methylisoxazole-3-carboxamide
CAS 1421491-80-6C21H19N5O4S
2-{[2-(Furan-2-yl)-6,8-dimethyl-5,7-dioxo-5H,6H,7H,8H-[1,3]diazino[4,5-d]pyrimidin-4-yl]sulfanyl}-N-(2-methylphenyl)acetamide chemical structure, C21H19N5O4S, CAS 863003-58-1
2-{[2-(Furan-2-yl)-6,8-dimethyl-5,7-dioxo-5H,6H,7H,8H-[1,3]diazino[4,5-d]pyrimidin-4-yl]sulfanyl}-N-(2-methylphenyl)acetamide
CAS 863003-58-1C21H19N5O4S
2-((2-(Furan-2-yl)-6,8-dimethyl-5,7-dioxo-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl)thio)-N-(m-tolyl)acetamide chemical structure, C21H19N5O4S, CAS 863003-59-2
2-((2-(Furan-2-yl)-6,8-dimethyl-5,7-dioxo-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl)thio)-N-(m-tolyl)acetamide
CAS 863003-59-2C21H19N5O4S
N-(2,4-Dimethoxyphenyl)-2-[3-oxo-8-(phenylsulfanyl)-2H,3H-[1,2,4]triazolo[4,3-a]pyrazin-2-yl]acetamide chemical structure, C21H19N5O4S, CAS 1251601-29-2
N-(2,4-Dimethoxyphenyl)-2-[3-oxo-8-(phenylsulfanyl)-2H,3H-[1,2,4]triazolo[4,3-a]pyrazin-2-yl]acetamide
CAS 1251601-29-2C21H19N5O4S
N-(3,4-Dimethoxyphenyl)-2-[3-oxo-8-(phenylsulfanyl)-2H,3H-[1,2,4]triazolo[4,3-a]pyrazin-2-yl]acetamide chemical structure, C21H19N5O4S, CAS 1251679-33-0
N-(3,4-Dimethoxyphenyl)-2-[3-oxo-8-(phenylsulfanyl)-2H,3H-[1,2,4]triazolo[4,3-a]pyrazin-2-yl]acetamide
CAS 1251679-33-0C21H19N5O4S
Ethyl 2-(2-(5-methyl-3-oxo-2-phenyl-3,5-dihydro-2H-pyrazolo[4,3-c]pyridine-7-carboxamido)thiazol-4-yl)acetate chemical structure, C21H19N5O4S, CAS 921833-05-8
Ethyl 2-(2-(5-methyl-3-oxo-2-phenyl-3,5-dihydro-2H-pyrazolo[4,3-c]pyridine-7-carboxamido)thiazol-4-yl)acetate
CAS 921833-05-8C21H19N5O4S
2-((2-(Furan-2-yl)-6,8-dimethyl-5,7-dioxo-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl)thio)-N-(p-tolyl)acetamide chemical structure, C21H19N5O4S, CAS 863003-60-5
2-((2-(Furan-2-yl)-6,8-dimethyl-5,7-dioxo-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl)thio)-N-(p-tolyl)acetamide
CAS 863003-60-5C21H19N5O4S
N-(2-Nitrophenyl)-2-({2-oxo-1-[(pyridin-4-yl)methyl]-1H,2H,5H,6H,7H-cyclopenta[d]pyrimidin-4-yl}sulfanyl)acetamide chemical structure, C21H19N5O4S, CAS 946271-13-2
N-(2-Nitrophenyl)-2-({2-oxo-1-[(pyridin-4-yl)methyl]-1H,2H,5H,6H,7H-cyclopenta[d]pyrimidin-4-yl}sulfanyl)acetamide
CAS 946271-13-2C21H19N5O4S
2-(Benzo[d]isoxazol-3-yl)-N-(2-(2-((furan-2-ylmethyl)amino)-2-oxoethyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)acetamide chemical structure, C21H19N5O4S, CAS 1171747-94-6
2-(Benzo[d]isoxazol-3-yl)-N-(2-(2-((furan-2-ylmethyl)amino)-2-oxoethyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)acetamide
CAS 1171747-94-6C21H19N5O4S
N-(2,3-Dimethoxybenzyl)-2-(7-oxo-3-(pyridin-4-yl)isothiazolo[4,5-d]pyrimidin-6(7H)-yl)acetamide chemical structure, C21H19N5O4S, CAS 1251566-07-0
N-(2,3-Dimethoxybenzyl)-2-(7-oxo-3-(pyridin-4-yl)isothiazolo[4,5-d]pyrimidin-6(7H)-yl)acetamide
CAS 1251566-07-0C21H19N5O4S

Frequently asked questions

What is the molar mass of C21H19N5O4S?

The molar mass of C21H19N5O4S is 437.47 g/mol, calculated from standard atomic weights for 21 carbon atoms, 19 hydrogen atoms, 5 nitrogen atoms, 4 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 437.1158 Da.

How many compounds have the formula C21H19N5O4S?

CompoundList lists 49 compounds with the molecular formula C21H19N5O4S, including N-(4-{[4-(2H-1,2,3-benzotriazol-2-yl)-2-hydroxy-5-methylanilino]sulfonyl}phenyl)acetamide, N-(4-Acetylamino-phenyl)-2-(5-furan-2-yl-4-furan-2-ylmethyl-4H-[1,2,4]triazol-3-ylsulfanyl)-acetamide, 2-[4-[2-(4-Oxo-3H-phthalazin-1-yl)acetyl]piperazin-1-yl]sulfonylbenzonitrile. 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 C21H19N5O4S?

C21H19N5O4S 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.