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Molecular formula

C18H13N3O4S2

23 compounds have this formula on CompoundList.

Molar mass
399.44g/mol
Monoisotopic mass
399.0347Da
Atoms
40
Elements
5
Rings plus double bonds
14

The formula C18H13N3O4S2 describes a molecule made of 18 carbon atoms, 13 hydrogen atoms, 3 nitrogen atoms, 4 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 × 1854.13%
    12.011 × 18 = 216.198 g/mol
  • H Hydrogen × 133.28%
    1.008 × 13 = 13.104 g/mol
  • N Nitrogen × 310.52%
    14.007 × 3 = 42.021 g/mol
  • O Oxygen × 416.02%
    15.999 × 4 = 63.996 g/mol
  • S Sulfur × 216.05%
    32.06 × 2 = 64.120 g/mol
Look up another formula

Compounds with the formula C18H13N3O4S2

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

Showing 1 to 23 of 23 compounds

3-Hydroxy-5-(4-methoxyphenyl)-1-(1,3,4-thiadiazol-2-yl)-4-(thiophen-2-ylcarbonyl)-1,5-dihydro-2H-pyrrol-2-one chemical structure, C18H13N3O4S2, CAS 307541-59-9
3-Hydroxy-5-(4-methoxyphenyl)-1-(1,3,4-thiadiazol-2-yl)-4-(thiophen-2-ylcarbonyl)-1,5-dihydro-2H-pyrrol-2-one
CAS 307541-59-9C18H13N3O4S2
4-(Furan-2-ylcarbonyl)-3-hydroxy-1-[5-(methylsulfanyl)-1,3,4-thiadiazol-2-yl]-5-phenyl-1,5-dihydro-2H-pyrrol-2-one chemical structure, C18H13N3O4S2, CAS 873682-30-5
4-(Furan-2-ylcarbonyl)-3-hydroxy-1-[5-(methylsulfanyl)-1,3,4-thiadiazol-2-yl]-5-phenyl-1,5-dihydro-2H-pyrrol-2-one
CAS 873682-30-5C18H13N3O4S2
N-(5-Phenacylsulfanyl-1,3,4-thiadiazol-2-yl)-1,3-benzodioxole-5-carboxamide chemical structure, C18H13N3O4S2, CAS 476465-39-1
N-(5-Phenacylsulfanyl-1,3,4-thiadiazol-2-yl)-1,3-benzodioxole-5-carboxamide
CAS 476465-39-1C18H13N3O4S2
2-(1,3-Benzoxazol-2-ylsulfanyl)-N-[2-(1,3-benzoxazol-2-ylsulfanyl)acetyl]acetamide chemical structure, C18H13N3O4S2, CAS 356588-95-9
2-(1,3-Benzoxazol-2-ylsulfanyl)-N-[2-(1,3-benzoxazol-2-ylsulfanyl)acetyl]acetamide
CAS 356588-95-9C18H13N3O4S2
(5-(2-Hydroxy-5-nitrophenyl)-3-(thiophen-2-yl)-4,5-dihydro-1H-pyrazol-1-yl)(thiophen-2-yl)methanone chemical structure, C18H13N3O4S2, CAS 868214-30-6
(5-(2-Hydroxy-5-nitrophenyl)-3-(thiophen-2-yl)-4,5-dihydro-1H-pyrazol-1-yl)(thiophen-2-yl)methanone
CAS 868214-30-6C18H13N3O4S2
(Z)-N-(5-(3-Nitrobenzylidene)-4-oxo-2-thioxothiazolidin-3-yl)-2-phenylacetamide chemical structure, C18H13N3O4S2, CAS 356571-89-6
(Z)-N-(5-(3-Nitrobenzylidene)-4-oxo-2-thioxothiazolidin-3-yl)-2-phenylacetamide
CAS 356571-89-6C18H13N3O4S2
4-[[4-(2-Oxochromen-3-yl)-1,3-thiazol-2-yl]amino]benzenesulfonamide chemical structure, C18H13N3O4S2, CAS 181125-98-4
4-[[4-(2-Oxochromen-3-yl)-1,3-thiazol-2-yl]amino]benzenesulfonamide
CAS 181125-98-4C18H13N3O4S2
Cox-2/5-lox-IN-2 chemical structure, C18H13N3O4S2, CAS 2410384-59-5
Cox-2/5-lox-IN-2
CAS 2410384-59-5C18H13N3O4S2
N-(3-(Benzo[d]thiazol-2-yl)-4,5-dimethylthiophen-2-yl)-5-nitrofuran-2-carboxamide chemical structure, C18H13N3O4S2, CAS 886959-40-6
N-(3-(Benzo[d]thiazol-2-yl)-4,5-dimethylthiophen-2-yl)-5-nitrofuran-2-carboxamide
CAS 886959-40-6C18H13N3O4S2
Benzofurazan, 4-((4-methylphenyl)sulfonyl)-7-(2-pyridinylthio)-, N-oxide chemical structure, C18H13N3O4S2, CAS 58131-53-6
Benzofurazan, 4-((4-methylphenyl)sulfonyl)-7-(2-pyridinylthio)-, N-oxide
CAS 58131-53-6C18H13N3O4S2
(Z)-N-(5-(4-Nitrobenzylidene)-4-oxo-2-thioxothiazolidin-3-yl)-2-phenylacetamide chemical structure, C18H13N3O4S2, CAS 300556-43-8
(Z)-N-(5-(4-Nitrobenzylidene)-4-oxo-2-thioxothiazolidin-3-yl)-2-phenylacetamide
CAS 300556-43-8C18H13N3O4S2
N-(4-Phenyl-1,3-thiazol-2-yl)-2-(1,1,3-trioxo-1,2-benzothiazol-2-yl)acetamide chemical structure, C18H13N3O4S2, CAS 454191-44-7
N-(4-Phenyl-1,3-thiazol-2-yl)-2-(1,1,3-trioxo-1,2-benzothiazol-2-yl)acetamide
CAS 454191-44-7C18H13N3O4S2
N-[(5Z)-5-[(4-Methylphenyl)methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]-3-nitrobenzamide chemical structure, C18H13N3O4S2, CAS 301158-25-8
N-[(5Z)-5-[(4-Methylphenyl)methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]-3-nitrobenzamide
CAS 301158-25-8C18H13N3O4S2
N-{4-[(5Z)-5-[(2-Nitrophenyl)methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]phenyl}acetamide chemical structure, C18H13N3O4S2, CAS 868147-96-0
N-{4-[(5Z)-5-[(2-Nitrophenyl)methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]phenyl}acetamide
CAS 868147-96-0C18H13N3O4S2
N-[(5Z)-5-(2,3-Dihydro-1,4-benzodioxin-6-ylmethylidene)-4-oxo-2-thioxo-1,3-thiazolidin-3-yl]pyridine-4-carboxamide chemical structure, C18H13N3O4S2, CAS 900135-17-3
N-[(5Z)-5-(2,3-Dihydro-1,4-benzodioxin-6-ylmethylidene)-4-oxo-2-thioxo-1,3-thiazolidin-3-yl]pyridine-4-carboxamide
CAS 900135-17-3C18H13N3O4S2
Ethyl 2-([1,3]dioxolo[4,5-f][1,3]benzothiazol-6-ylamino)-1,3-benzothiazole-6-carboxylate chemical structure, C18H13N3O4S2, CAS 862976-85-0
Ethyl 2-([1,3]dioxolo[4,5-f][1,3]benzothiazol-6-ylamino)-1,3-benzothiazole-6-carboxylate
CAS 862976-85-0C18H13N3O4S2
(Z)-N-(4-(5-(3-Nitrobenzylidene)-4-oxo-2-thioxothiazolidin-3-yl)phenyl)acetamide chemical structure, C18H13N3O4S2, CAS 868148-00-9
(Z)-N-(4-(5-(3-Nitrobenzylidene)-4-oxo-2-thioxothiazolidin-3-yl)phenyl)acetamide
CAS 868148-00-9C18H13N3O4S2
(Z)-N-(4-(5-(4-Nitrobenzylidene)-4-oxo-2-thioxothiazolidin-3-yl)phenyl)acetamide chemical structure, C18H13N3O4S2, CAS 868148-08-7
(Z)-N-(4-(5-(4-Nitrobenzylidene)-4-oxo-2-thioxothiazolidin-3-yl)phenyl)acetamide
CAS 868148-08-7C18H13N3O4S2
N-(6-(Methylsulfonyl)benzo[d]thiazol-2-yl)-5-phenyloxazole-2-carboxamide chemical structure, C18H13N3O4S2, CAS 1795297-01-6
N-(6-(Methylsulfonyl)benzo[d]thiazol-2-yl)-5-phenyloxazole-2-carboxamide
CAS 1795297-01-6C18H13N3O4S2
N-(4-Ethoxy-1,3-benzothiazol-2-yl)-5-nitro-1-benzothiophene-2-carboxamide chemical structure, C18H13N3O4S2, CAS 391867-29-1
N-(4-Ethoxy-1,3-benzothiazol-2-yl)-5-nitro-1-benzothiophene-2-carboxamide
CAS 391867-29-1C18H13N3O4S2
N-[6-(Methylsulfonyl)-1,3-benzothiazol-2-yl]-5-phenyl-1,2-oxazole-3-carboxamide chemical structure, C18H13N3O4S2, CAS 912891-49-7
N-[6-(Methylsulfonyl)-1,3-benzothiazol-2-yl]-5-phenyl-1,2-oxazole-3-carboxamide
CAS 912891-49-7C18H13N3O4S2
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-({5,6-dimethylthieno[2,3-d]pyrimidin-4-yl}sulfanyl)acetate chemical structure, C18H13N3O4S2, CAS 2248345-15-3
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-({5,6-dimethylthieno[2,3-d]pyrimidin-4-yl}sulfanyl)acetate
CAS 2248345-15-3C18H13N3O4S2
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(pyrrolidin-1-yl)thieno[2,3-d][1,3]thiazole-5-carboxylate chemical structure, C18H13N3O4S2, CAS 2248396-03-2
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(pyrrolidin-1-yl)thieno[2,3-d][1,3]thiazole-5-carboxylate
CAS 2248396-03-2C18H13N3O4S2

Frequently asked questions

What is the molar mass of C18H13N3O4S2?

The molar mass of C18H13N3O4S2 is 399.44 g/mol, calculated from standard atomic weights for 18 carbon atoms, 13 hydrogen atoms, 3 nitrogen atoms, 4 oxygen atoms and 2 sulfur atoms. The monoisotopic mass is 399.0347 Da.

How many compounds have the formula C18H13N3O4S2?

CompoundList lists 23 compounds with the molecular formula C18H13N3O4S2, including 3-Hydroxy-5-(4-methoxyphenyl)-1-(1,3,4-thiadiazol-2-yl)-4-(thiophen-2-ylcarbonyl)-1,5-dihydro-2H-pyrrol-2-one, 4-(Furan-2-ylcarbonyl)-3-hydroxy-1-[5-(methylsulfanyl)-1,3,4-thiadiazol-2-yl]-5-phenyl-1,5-dihydro-2H-pyrrol-2-one, N-(5-Phenacylsulfanyl-1,3,4-thiadiazol-2-yl)-1,3-benzodioxole-5-carboxamide. 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 C18H13N3O4S2?

C18H13N3O4S2 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.