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Molecular formula

C21H16N4O5S

23 compounds have this formula on CompoundList.

Molar mass
436.44g/mol
Monoisotopic mass
436.0841Da
Atoms
47
Elements
5
Rings plus double bonds
16

The formula C21H16N4O5S describes a molecule made of 21 carbon atoms, 16 hydrogen atoms, 4 nitrogen atoms, 5 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 × 2157.79%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 163.70%
    1.008 × 16 = 16.128 g/mol
  • N Nitrogen × 412.84%
    14.007 × 4 = 56.028 g/mol
  • O Oxygen × 518.33%
    15.999 × 5 = 79.995 g/mol
  • S Sulfur × 17.35%
    32.06 × 1 = 32.060 g/mol
Look up another formula

Compounds with the formula C21H16N4O5S

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

Showing 1 to 23 of 23 compounds

N-{4-[(4-Methylpyrimidin-2-yl)sulfamoyl]phenyl}-4-oxo-4H-chromene-2-carboxamide chemical structure, C21H16N4O5S, CAS 333747-23-2
N-{4-[(4-Methylpyrimidin-2-yl)sulfamoyl]phenyl}-4-oxo-4H-chromene-2-carboxamide
CAS 333747-23-2C21H16N4O5S
6-Methyl-4-oxo-N-[4-(pyrimidin-2-ylsulfamoyl)phenyl]-4H-chromene-2-carboxamide chemical structure, C21H16N4O5S, CAS 879568-19-1
6-Methyl-4-oxo-N-[4-(pyrimidin-2-ylsulfamoyl)phenyl]-4H-chromene-2-carboxamide
CAS 879568-19-1C21H16N4O5S
N-(3-(2-Methyl-4-oxoquinazolin-3(4H)-yl)phenyl)-3-nitrobenzenesulfonamide chemical structure, C21H16N4O5S, CAS 898421-23-3
N-(3-(2-Methyl-4-oxoquinazolin-3(4H)-yl)phenyl)-3-nitrobenzenesulfonamide
CAS 898421-23-3C21H16N4O5S
N-(2-Methyl-4-oxo-3-phenyl-3,4-dihydroquinazolin-6-yl)-2-nitrobenzenesulfonamide chemical structure, C21H16N4O5S, CAS 1105238-40-1
N-(2-Methyl-4-oxo-3-phenyl-3,4-dihydroquinazolin-6-yl)-2-nitrobenzenesulfonamide
CAS 1105238-40-1C21H16N4O5S
N-(Benzo[d][1,3]dioxol-5-yl)-2-(2,4-dioxo-3-(thiophen-2-ylmethyl)-3,4-dihydropyrido[3,2-d]pyrimidin-1(2H)-yl)acetamide chemical structure, C21H16N4O5S, CAS 955800-69-8
N-(Benzo[d][1,3]dioxol-5-yl)-2-(2,4-dioxo-3-(thiophen-2-ylmethyl)-3,4-dihydropyrido[3,2-d]pyrimidin-1(2H)-yl)acetamide
CAS 955800-69-8C21H16N4O5S
(Z)-3-(1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-5-(4-nitrobenzylidene)thiazolidine-2,4-dione chemical structure, C21H16N4O5S, CAS 299954-20-4
(Z)-3-(1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-5-(4-nitrobenzylidene)thiazolidine-2,4-dione
CAS 299954-20-4C21H16N4O5S
N-[4-Methyl-2-(3-oxo-3,4-dihydroquinoxalin-2-yl)phenyl]-4-nitrobenzene-1-sulfonamide chemical structure, C21H16N4O5S, CAS 927542-74-3
N-[4-Methyl-2-(3-oxo-3,4-dihydroquinoxalin-2-yl)phenyl]-4-nitrobenzene-1-sulfonamide
CAS 927542-74-3C21H16N4O5S
(Z)-3-(Benzo[d][1,3]dioxol-5-yl)-N-(2-(4-nitrophenyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)acrylamide chemical structure, C21H16N4O5S, CAS 476458-96-5
(Z)-3-(Benzo[d][1,3]dioxol-5-yl)-N-(2-(4-nitrophenyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)acrylamide
CAS 476458-96-5C21H16N4O5S
2-((5-(3-Hydroxynaphthalen-2-yl)-1,3,4-oxadiazol-2-yl)thio)-N-(4-methyl-3-nitrophenyl)acetamide chemical structure, C21H16N4O5S, CAS 332377-38-5
2-((5-(3-Hydroxynaphthalen-2-yl)-1,3,4-oxadiazol-2-yl)thio)-N-(4-methyl-3-nitrophenyl)acetamide
CAS 332377-38-5C21H16N4O5S
Methyl 4-(3-methyl-6-(3-nitrophenyl)imidazo[2,1-b]thiazole-2-carboxamido)benzoate chemical structure, C21H16N4O5S, CAS 852135-91-2
Methyl 4-(3-methyl-6-(3-nitrophenyl)imidazo[2,1-b]thiazole-2-carboxamido)benzoate
CAS 852135-91-2C21H16N4O5S
N-[(2H-1,3-Benzodioxol-5-yl)methyl]-3-methyl-6-(3-nitrophenyl)imidazo[2,1-b][1,3]thiazole-2-carboxamide chemical structure, C21H16N4O5S, CAS 852135-68-3
N-[(2H-1,3-Benzodioxol-5-yl)methyl]-3-methyl-6-(3-nitrophenyl)imidazo[2,1-b][1,3]thiazole-2-carboxamide
CAS 852135-68-3C21H16N4O5S
3-(Benzo[d][1,3]dioxol-5-ylmethyl)-N-(2-methylbenzo[d]thiazol-5-yl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carboxamide chemical structure, C21H16N4O5S, CAS 1396871-98-9
3-(Benzo[d][1,3]dioxol-5-ylmethyl)-N-(2-methylbenzo[d]thiazol-5-yl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carboxamide
CAS 1396871-98-9C21H16N4O5S
N-(2,3-Dihydro-1,4-benzodioxin-6-yl)-3-methyl-6-(3-nitrophenyl)imidazo[2,1-b][1,3]thiazole-2-carboxamide chemical structure, C21H16N4O5S, CAS 852135-96-7
N-(2,3-Dihydro-1,4-benzodioxin-6-yl)-3-methyl-6-(3-nitrophenyl)imidazo[2,1-b][1,3]thiazole-2-carboxamide
CAS 852135-96-7C21H16N4O5S
N-[4-[(4-Methylpyrimidin-2-yl)sulfamoyl]phenyl]-4-oxochromene-3-carboxamide chemical structure, C21H16N4O5S, CAS 868212-60-6
N-[4-[(4-Methylpyrimidin-2-yl)sulfamoyl]phenyl]-4-oxochromene-3-carboxamide
CAS 868212-60-6C21H16N4O5S
N-(5-(Furan-2-yl)-1,3,4-oxadiazol-2-yl)-4-(indolin-1-ylsulfonyl)benzamide chemical structure, C21H16N4O5S, CAS 851095-62-0
N-(5-(Furan-2-yl)-1,3,4-oxadiazol-2-yl)-4-(indolin-1-ylsulfonyl)benzamide
CAS 851095-62-0C21H16N4O5S
3-Hydroxy-4-[(4-methylphenyl)carbonyl]-1-(5-methyl-1,3,4-thiadiazol-2-yl)-5-(3-nitrophenyl)-1,5-dihydro-2H-pyrrol-2-one chemical structure, C21H16N4O5S, CAS 494200-68-9
3-Hydroxy-4-[(4-methylphenyl)carbonyl]-1-(5-methyl-1,3,4-thiadiazol-2-yl)-5-(3-nitrophenyl)-1,5-dihydro-2H-pyrrol-2-one
CAS 494200-68-9C21H16N4O5S
N-(3-(2-Methyl-4-oxoquinazolin-3(4H)-yl)phenyl)-2-nitrobenzenesulfonamide chemical structure, C21H16N4O5S, CAS 898438-88-5
N-(3-(2-Methyl-4-oxoquinazolin-3(4H)-yl)phenyl)-2-nitrobenzenesulfonamide
CAS 898438-88-5C21H16N4O5S
N-(4-(2-Methyl-4-oxoquinazolin-3(4H)-yl)phenyl)-3-nitrobenzenesulfonamide chemical structure, C21H16N4O5S, CAS 898438-90-9
N-(4-(2-Methyl-4-oxoquinazolin-3(4H)-yl)phenyl)-3-nitrobenzenesulfonamide
CAS 898438-90-9C21H16N4O5S
N-(4-(2-Methyl-4-oxoquinazolin-3(4H)-yl)phenyl)-4-nitrobenzenesulfonamide chemical structure, C21H16N4O5S, CAS 898421-26-6
N-(4-(2-Methyl-4-oxoquinazolin-3(4H)-yl)phenyl)-4-nitrobenzenesulfonamide
CAS 898421-26-6C21H16N4O5S
N-(Methanesulfonyl)-N-{4-[(3-nitroacridin-9-yl)amino]phenyl}formamide chemical structure, C21H16N4O5S, CAS 61068-03-9
N-(Methanesulfonyl)-N-{4-[(3-nitroacridin-9-yl)amino]phenyl}formamide
CAS 61068-03-9C21H16N4O5S
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-{2-[(1-methyl-1H-imidazol-2-yl)sulfanyl]acetamido}benzoate chemical structure, C21H16N4O5S, CAS 2248407-95-4
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-{2-[(1-methyl-1H-imidazol-2-yl)sulfanyl]acetamido}benzoate
CAS 2248407-95-4C21H16N4O5S
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 4-{2-[(1-methyl-1H-imidazol-2-yl)sulfanyl]acetamido}benzoate chemical structure, C21H16N4O5S, CAS 2248374-62-9
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 4-{2-[(1-methyl-1H-imidazol-2-yl)sulfanyl]acetamido}benzoate
CAS 2248374-62-9C21H16N4O5S
Benzenesulfonic acid, (1,2-dihydro-5-nitro-2-oxo-1-(phenylmethyl)-3H-indol-3-ylidene)hydrazide chemical structure, C21H16N4O5S, CAS 99448-97-2
Benzenesulfonic acid, (1,2-dihydro-5-nitro-2-oxo-1-(phenylmethyl)-3H-indol-3-ylidene)hydrazide
CAS 99448-97-2C21H16N4O5S

Frequently asked questions

What is the molar mass of C21H16N4O5S?

The molar mass of C21H16N4O5S is 436.44 g/mol, calculated from standard atomic weights for 21 carbon atoms, 16 hydrogen atoms, 4 nitrogen atoms, 5 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 436.0841 Da.

How many compounds have the formula C21H16N4O5S?

CompoundList lists 23 compounds with the molecular formula C21H16N4O5S, including N-{4-[(4-Methylpyrimidin-2-yl)sulfamoyl]phenyl}-4-oxo-4H-chromene-2-carboxamide, 6-Methyl-4-oxo-N-[4-(pyrimidin-2-ylsulfamoyl)phenyl]-4H-chromene-2-carboxamide, N-(3-(2-Methyl-4-oxoquinazolin-3(4H)-yl)phenyl)-3-nitrobenzenesulfonamide. 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 C21H16N4O5S?

C21H16N4O5S has a degree of unsaturation of 16. 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.