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Molecular formula

C18H13N5OS

27 compounds have this formula on CompoundList.

Molar mass
347.40g/mol
Monoisotopic mass
347.0841Da
Atoms
38
Elements
5
Rings plus double bonds
15

The formula C18H13N5OS describes a molecule made of 18 carbon atoms, 13 hydrogen atoms, 5 nitrogen atoms, 1 oxygen atom 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 × 1862.23%
    12.011 × 18 = 216.198 g/mol
  • H Hydrogen × 133.77%
    1.008 × 13 = 13.104 g/mol
  • N Nitrogen × 520.16%
    14.007 × 5 = 70.035 g/mol
  • O Oxygen × 14.61%
    15.999 × 1 = 15.999 g/mol
  • S Sulfur × 19.23%
    32.06 × 1 = 32.060 g/mol
Look up another formula

Compounds with the formula C18H13N5OS

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

Showing 1 to 27 of 27 compounds

1-Phenyl-2-[(3-pyridin-3-yl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)sulfanyl]ethanone chemical structure, C18H13N5OS, CAS 868969-40-8
1-Phenyl-2-[(3-pyridin-3-yl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)sulfanyl]ethanone
CAS 868969-40-8C18H13N5OS
1-Phenyl-3-(4-pyridinyl)-N-1,3-thiazol-2-yl-1H-pyrazole-4-carboxamide chemical structure, C18H13N5OS, CAS 955972-10-8
1-Phenyl-3-(4-pyridinyl)-N-1,3-thiazol-2-yl-1H-pyrazole-4-carboxamide
CAS 955972-10-8C18H13N5OS
1-(((3-Mercapto-5-(2-pyridinyl)-4H-1,2,4-triazol-4-yl)imino)methyl)-2-naphthol chemical structure, C18H13N5OS, CAS 613248-36-5
1-(((3-Mercapto-5-(2-pyridinyl)-4H-1,2,4-triazol-4-yl)imino)methyl)-2-naphthol
CAS 613248-36-5C18H13N5OS
1-Phenyl-2-[(3-pyridin-2-yl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)sulfanyl]ethanone chemical structure, C18H13N5OS, CAS 868968-27-8
1-Phenyl-2-[(3-pyridin-2-yl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)sulfanyl]ethanone
CAS 868968-27-8C18H13N5OS
N-(5-Methyl-1,3,4-thiadiazol-2-yl)-2-(pyridin-2-yl)quinoline-4-carboxamide chemical structure, C18H13N5OS, CAS 881933-31-9
N-(5-Methyl-1,3,4-thiadiazol-2-yl)-2-(pyridin-2-yl)quinoline-4-carboxamide
CAS 881933-31-9C18H13N5OS
1-Phenyl-N-[4-(pyridin-2-yl)-1,3-thiazol-2-yl]-1H-imidazole-5-carboxamide chemical structure, C18H13N5OS, CAS 920684-21-5
1-Phenyl-N-[4-(pyridin-2-yl)-1,3-thiazol-2-yl]-1H-imidazole-5-carboxamide
CAS 920684-21-5C18H13N5OS
2-[({2-Methyl-[1,2,4]triazolo[1,5-c]quinazolin-5-yl}sulfanyl)methyl]-1,3-benzoxazole chemical structure, C18H13N5OS, CAS 931062-37-2
2-[({2-Methyl-[1,2,4]triazolo[1,5-c]quinazolin-5-yl}sulfanyl)methyl]-1,3-benzoxazole
CAS 931062-37-2C18H13N5OS
4-(5-Phenyl-1H-1,2,3-triazol-1-yl)-N-(thiazol-2-yl)benzamide chemical structure, C18H13N5OS, CAS 915933-14-1
4-(5-Phenyl-1H-1,2,3-triazol-1-yl)-N-(thiazol-2-yl)benzamide
CAS 915933-14-1C18H13N5OS
4-[[6-(5-Thiazolyl)-4-quinazolinyl]amino]benzamide chemical structure, C18H13N5OS, CAS 1700636-06-1
4-[[6-(5-Thiazolyl)-4-quinazolinyl]amino]benzamide
CAS 1700636-06-1C18H13N5OS
N-(5-Methyl-1,3,4-thiadiazol-2-yl)-2-(pyridin-4-yl)quinoline-4-carboxamide chemical structure, C18H13N5OS, CAS 881933-28-4
N-(5-Methyl-1,3,4-thiadiazol-2-yl)-2-(pyridin-4-yl)quinoline-4-carboxamide
CAS 881933-28-4C18H13N5OS
1-(((3-(4-Pyridinyl)-5-sulfanyl-4H-1,2,4-triazol-4-yl)imino)methyl)-2-naphthol chemical structure, C18H13N5OS, CAS 487022-68-4
1-(((3-(4-Pyridinyl)-5-sulfanyl-4H-1,2,4-triazol-4-yl)imino)methyl)-2-naphthol
CAS 487022-68-4C18H13N5OS
1-Phenyl-2-[(6-pyridin-2-yl-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)sulfanyl]ethanone chemical structure, C18H13N5OS, CAS 891104-84-0
1-Phenyl-2-[(6-pyridin-2-yl-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)sulfanyl]ethanone
CAS 891104-84-0C18H13N5OS
2-(Pyridin-4-yl)-6-(thiophen-2-yl)-6,7-dihydro[1,2,4]triazolo[5,1-b]quinazolin-8(5H)-one chemical structure, C18H13N5OS, CAS 879044-73-2
2-(Pyridin-4-yl)-6-(thiophen-2-yl)-6,7-dihydro[1,2,4]triazolo[5,1-b]quinazolin-8(5H)-one
CAS 879044-73-2C18H13N5OS
1-Phenyl-2-[(3-pyridin-4-yl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)sulfanyl]ethanone chemical structure, C18H13N5OS, CAS 868970-42-7
1-Phenyl-2-[(3-pyridin-4-yl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)sulfanyl]ethanone
CAS 868970-42-7C18H13N5OS
3-(1,3-Benzothiazol-2-yl)-N-(pyridin-3-ylmethyl)pyrazine-2-carboxamide chemical structure, C18H13N5OS, CAS 873856-70-3
3-(1,3-Benzothiazol-2-yl)-N-(pyridin-3-ylmethyl)pyrazine-2-carboxamide
CAS 873856-70-3C18H13N5OS
2-(Pyridin-3-yl)-6-(thiophen-2-yl)-6,7-dihydro[1,2,4]triazolo[5,1-b]quinazolin-8(5H)-one chemical structure, C18H13N5OS, CAS 886153-93-1
2-(Pyridin-3-yl)-6-(thiophen-2-yl)-6,7-dihydro[1,2,4]triazolo[5,1-b]quinazolin-8(5H)-one
CAS 886153-93-1C18H13N5OS
1,5-Diphenyl-N-(1,3-thiazol-2-yl)triazole-4-carboxamide chemical structure, C18H13N5OS, CAS 904813-00-9
1,5-Diphenyl-N-(1,3-thiazol-2-yl)triazole-4-carboxamide
CAS 904813-00-9C18H13N5OS
[6-(1H-Indol-3-yl)[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-3-yl]methyl phenyl ether chemical structure, C18H13N5OS, CAS 929870-47-3
[6-(1H-Indol-3-yl)[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-3-yl]methyl phenyl ether
CAS 929870-47-3C18H13N5OS
N-[2-(Phenylsulfanyl)phenyl][1,2,4]triazolo[1,5-a]pyrimidine-2-carboxamide chemical structure, C18H13N5OS, CAS 832143-89-2
N-[2-(Phenylsulfanyl)phenyl][1,2,4]triazolo[1,5-a]pyrimidine-2-carboxamide
CAS 832143-89-2C18H13N5OS
5-(4-(Indolin-1-yl)pyrimidin-5-yl)-3-(thiophen-2-yl)-1,2,4-oxadiazole chemical structure, C18H13N5OS, CAS 2034570-53-9
5-(4-(Indolin-1-yl)pyrimidin-5-yl)-3-(thiophen-2-yl)-1,2,4-oxadiazole
CAS 2034570-53-9C18H13N5OS
1-Phenyl-2-[(6-pyridin-3-yl-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)sulfanyl]ethanone chemical structure, C18H13N5OS, CAS 891108-68-2
1-Phenyl-2-[(6-pyridin-3-yl-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)sulfanyl]ethanone
CAS 891108-68-2C18H13N5OS
N-({[2,3'-Bipyridine]-4-yl}methyl)-2,1,3-benzothiadiazole-5-carboxamide chemical structure, C18H13N5OS, CAS 2034561-84-5
N-({[2,3'-Bipyridine]-4-yl}methyl)-2,1,3-benzothiadiazole-5-carboxamide
CAS 2034561-84-5C18H13N5OS
N-({[2,3'-Bipyridine]-3-yl}methyl)-2,1,3-benzothiadiazole-5-carboxamide chemical structure, C18H13N5OS, CAS 1903074-32-7
N-({[2,3'-Bipyridine]-3-yl}methyl)-2,1,3-benzothiadiazole-5-carboxamide
CAS 1903074-32-7C18H13N5OS
N-{[3-(Thiophen-3-yl)pyrazin-2-yl]methyl}quinoxaline-2-carboxamide chemical structure, C18H13N5OS, CAS 2034496-90-5
N-{[3-(Thiophen-3-yl)pyrazin-2-yl]methyl}quinoxaline-2-carboxamide
CAS 2034496-90-5C18H13N5OS

Frequently asked questions

What is the molar mass of C18H13N5OS?

The molar mass of C18H13N5OS is 347.40 g/mol, calculated from standard atomic weights for 18 carbon atoms, 13 hydrogen atoms, 5 nitrogen atoms, 1 oxygen atom and 1 sulfur atom. The monoisotopic mass is 347.0841 Da.

How many compounds have the formula C18H13N5OS?

CompoundList lists 27 compounds with the molecular formula C18H13N5OS, including 1-Phenyl-2-[(3-pyridin-3-yl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)sulfanyl]ethanone, 1-Phenyl-3-(4-pyridinyl)-N-1,3-thiazol-2-yl-1H-pyrazole-4-carboxamide, 1-(((3-Mercapto-5-(2-pyridinyl)-4H-1,2,4-triazol-4-yl)imino)methyl)-2-naphthol. 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 C18H13N5OS?

C18H13N5OS 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.