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Molecular formula

C18H16N4O5S

31 compounds have this formula on CompoundList.

Molar mass
400.41g/mol
Monoisotopic mass
400.0841Da
Atoms
44
Elements
5
Rings plus double bonds
13

The formula C18H16N4O5S describes a molecule made of 18 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 × 1853.99%
    12.011 × 18 = 216.198 g/mol
  • H Hydrogen × 164.03%
    1.008 × 16 = 16.128 g/mol
  • N Nitrogen × 413.99%
    14.007 × 4 = 56.028 g/mol
  • O Oxygen × 519.98%
    15.999 × 5 = 79.995 g/mol
  • S Sulfur × 18.01%
    32.06 × 1 = 32.060 g/mol
Look up another formula

Compounds with the formula C18H16N4O5S

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

Showing 1 to 31 of 31 compounds

[4-(1,1-Dioxo-1,2-benzothiazol-3-yl)piperazin-1-yl]-(4-nitrophenyl)methanone chemical structure, C18H16N4O5S, CAS 443319-14-0
[4-(1,1-Dioxo-1,2-benzothiazol-3-yl)piperazin-1-yl]-(4-nitrophenyl)methanone
CAS 443319-14-0C18H16N4O5S
N-(3-(6-Ethoxypyridazin-3-yl)phenyl)-2-nitrobenzenesulfonamide chemical structure, C18H16N4O5S, CAS 906159-90-8
N-(3-(6-Ethoxypyridazin-3-yl)phenyl)-2-nitrobenzenesulfonamide
CAS 906159-90-8C18H16N4O5S
Benzyl 2-((4-amino-5-(furan-2-carboxamido)-6-oxo-1,6-dihydropyrimidin-2-yl)thio)acetate chemical structure, C18H16N4O5S, CAS 868226-73-7
Benzyl 2-((4-amino-5-(furan-2-carboxamido)-6-oxo-1,6-dihydropyrimidin-2-yl)thio)acetate
CAS 868226-73-7C18H16N4O5S
N-(3-(6-Ethoxypyridazin-3-yl)phenyl)-4-nitrobenzenesulfonamide chemical structure, C18H16N4O5S, CAS 903352-98-7
N-(3-(6-Ethoxypyridazin-3-yl)phenyl)-4-nitrobenzenesulfonamide
CAS 903352-98-7C18H16N4O5S
N-(4-(6-Methoxypyridazin-3-yl)phenyl)-2-methyl-5-nitrobenzenesulfonamide chemical structure, C18H16N4O5S, CAS 903290-75-5
N-(4-(6-Methoxypyridazin-3-yl)phenyl)-2-methyl-5-nitrobenzenesulfonamide
CAS 903290-75-5C18H16N4O5S
N-[4-(6-Ethoxypyridazin-3-yl)phenyl]-4-nitrobenzenesulfonamide chemical structure, C18H16N4O5S, CAS 903292-09-1
N-[4-(6-Ethoxypyridazin-3-yl)phenyl]-4-nitrobenzenesulfonamide
CAS 903292-09-1C18H16N4O5S
N-(3-(6-Ethoxypyridazin-3-yl)phenyl)-3-nitrobenzenesulfonamide chemical structure, C18H16N4O5S, CAS 903281-50-5
N-(3-(6-Ethoxypyridazin-3-yl)phenyl)-3-nitrobenzenesulfonamide
CAS 903281-50-5C18H16N4O5S
2-Methyl-N-(4-(1-methyl-6-oxo-1,6-dihydropyridazin-3-yl)phenyl)-5-nitrobenzenesulfonamide chemical structure, C18H16N4O5S, CAS 941920-59-8
2-Methyl-N-(4-(1-methyl-6-oxo-1,6-dihydropyridazin-3-yl)phenyl)-5-nitrobenzenesulfonamide
CAS 941920-59-8C18H16N4O5S
N-(4-Amino-2-((2-(4-methoxyphenyl)-2-oxoethyl)thio)-6-oxo-1,6-dihydropyrimidin-5-yl)furan-2-carboxamide chemical structure, C18H16N4O5S, CAS 868226-75-9
N-(4-Amino-2-((2-(4-methoxyphenyl)-2-oxoethyl)thio)-6-oxo-1,6-dihydropyrimidin-5-yl)furan-2-carboxamide
CAS 868226-75-9C18H16N4O5S
Dimethyl 2-(2-([1,2,4]triazolo[4,3-a]pyridin-3-ylthio)acetamido)terephthalate chemical structure, C18H16N4O5S, CAS 442865-32-9
Dimethyl 2-(2-([1,2,4]triazolo[4,3-a]pyridin-3-ylthio)acetamido)terephthalate
CAS 442865-32-9C18H16N4O5S
Ethyl 3-cyano-2-(2-nitrobenzamido)-4,5-dihydrothieno[2,3-c]pyridine-6(7H)-carboxylate chemical structure, C18H16N4O5S, CAS 864927-06-0
Ethyl 3-cyano-2-(2-nitrobenzamido)-4,5-dihydrothieno[2,3-c]pyridine-6(7H)-carboxylate
CAS 864927-06-0C18H16N4O5S
2-Benzamido-N-(3-methanesulfonamidophenyl)-1,3-oxazole-4-carboxamide chemical structure, C18H16N4O5S, CAS 1286719-20-7
2-Benzamido-N-(3-methanesulfonamidophenyl)-1,3-oxazole-4-carboxamide
CAS 1286719-20-7C18H16N4O5S
1-(4-(3,4-Dimethoxyphenyl)thiazol-2-yl)-3-(4-nitrophenyl)urea chemical structure, C18H16N4O5S, CAS 391868-12-5
1-(4-(3,4-Dimethoxyphenyl)thiazol-2-yl)-3-(4-nitrophenyl)urea
CAS 391868-12-5C18H16N4O5S
N-(4-(4-(Furan-2-carbonyl)piperazine-1-carbonyl)oxazol-2-yl)thiophene-3-carboxamide chemical structure, C18H16N4O5S, CAS 1351612-20-8
N-(4-(4-(Furan-2-carbonyl)piperazine-1-carbonyl)oxazol-2-yl)thiophene-3-carboxamide
CAS 1351612-20-8C18H16N4O5S
2-Nitro-N-(2-((6-phenylpyridazin-3-yl)oxy)ethyl)benzenesulfonamide chemical structure, C18H16N4O5S, CAS 920211-85-4
2-Nitro-N-(2-((6-phenylpyridazin-3-yl)oxy)ethyl)benzenesulfonamide
CAS 920211-85-4C18H16N4O5S
N-[8-[2-[5-(Aminosulfonyl)-2-hydroxyphenyl]diazenyl]-7-hydroxy-1-naphthalenyl]acetamide chemical structure, C18H16N4O5S, CAS 4472-49-5
N-[8-[2-[5-(Aminosulfonyl)-2-hydroxyphenyl]diazenyl]-7-hydroxy-1-naphthalenyl]acetamide
CAS 4472-49-5C18H16N4O5S
2-((5-(4-Methoxyphenyl)-1,3,4-oxadiazol-2-yl)thio)-N-(4-methyl-3-nitrophenyl)acetamide chemical structure, C18H16N4O5S, CAS 337498-67-6
2-((5-(4-Methoxyphenyl)-1,3,4-oxadiazol-2-yl)thio)-N-(4-methyl-3-nitrophenyl)acetamide
CAS 337498-67-6C18H16N4O5S
Ethyl 3-cyano-2-(3-nitrobenzamido)-4,5-dihydrothieno[2,3-c]pyridine-6(7H)-carboxylate chemical structure, C18H16N4O5S, CAS 864926-91-0
Ethyl 3-cyano-2-(3-nitrobenzamido)-4,5-dihydrothieno[2,3-c]pyridine-6(7H)-carboxylate
CAS 864926-91-0C18H16N4O5S
Ethyl 3-cyano-2-[(4-nitrobenzoyl)amino]-5,7-dihydro-4H-thieno[2,3-c]pyridine-6-carboxylate chemical structure, C18H16N4O5S, CAS 864926-90-9
Ethyl 3-cyano-2-[(4-nitrobenzoyl)amino]-5,7-dihydro-4H-thieno[2,3-c]pyridine-6-carboxylate
CAS 864926-90-9C18H16N4O5S
7-(4-Isopropylphenyl)-N-(4-methoxybenzyl)pyrazolo[1,5-a]pyrimidine-3-carboxamide chemical structure, C18H16N4O5S, CAS 1251604-21-3
7-(4-Isopropylphenyl)-N-(4-methoxybenzyl)pyrazolo[1,5-a]pyrimidine-3-carboxamide
CAS 1251604-21-3C18H16N4O5S
2-Methyl-N-(3-(1-methyl-6-oxo-1,6-dihydropyridazin-3-yl)phenyl)-5-nitrobenzenesulfonamide chemical structure, C18H16N4O5S, CAS 942013-50-5
2-Methyl-N-(3-(1-methyl-6-oxo-1,6-dihydropyridazin-3-yl)phenyl)-5-nitrobenzenesulfonamide
CAS 942013-50-5C18H16N4O5S
3-Nitro-N-(2-((6-phenylpyridazin-3-yl)oxy)ethyl)benzenesulfonamide chemical structure, C18H16N4O5S, CAS 920399-91-3
3-Nitro-N-(2-((6-phenylpyridazin-3-yl)oxy)ethyl)benzenesulfonamide
CAS 920399-91-3C18H16N4O5S
4-Nitro-N-(2-((6-phenylpyridazin-3-yl)oxy)ethyl)benzenesulfonamide chemical structure, C18H16N4O5S, CAS 920192-75-2
4-Nitro-N-(2-((6-phenylpyridazin-3-yl)oxy)ethyl)benzenesulfonamide
CAS 920192-75-2C18H16N4O5S
2-((5-(4-Methoxyphenyl)-1,3,4-oxadiazol-2-yl)thio)-N-(2-methyl-5-nitrophenyl)acetamide chemical structure, C18H16N4O5S, CAS 337498-65-4
2-((5-(4-Methoxyphenyl)-1,3,4-oxadiazol-2-yl)thio)-N-(2-methyl-5-nitrophenyl)acetamide
CAS 337498-65-4C18H16N4O5S

Frequently asked questions

What is the molar mass of C18H16N4O5S?

The molar mass of C18H16N4O5S is 400.41 g/mol, calculated from standard atomic weights for 18 carbon atoms, 16 hydrogen atoms, 4 nitrogen atoms, 5 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 400.0841 Da.

How many compounds have the formula C18H16N4O5S?

CompoundList lists 31 compounds with the molecular formula C18H16N4O5S, including [4-(1,1-Dioxo-1,2-benzothiazol-3-yl)piperazin-1-yl]-(4-nitrophenyl)methanone, N-(3-(6-Ethoxypyridazin-3-yl)phenyl)-2-nitrobenzenesulfonamide, Benzyl 2-((4-amino-5-(furan-2-carboxamido)-6-oxo-1,6-dihydropyrimidin-2-yl)thio)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 C18H16N4O5S?

C18H16N4O5S has a degree of unsaturation of 13. 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.