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Molecular formula

C21H18N4OS2

28 compounds have this formula on CompoundList.

Molar mass
406.52g/mol
Monoisotopic mass
406.0922Da
Atoms
46
Elements
5
Rings plus double bonds
15

The formula C21H18N4OS2 describes a molecule made of 21 carbon atoms, 18 hydrogen atoms, 4 nitrogen atoms, 1 oxygen atom 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 × 2162.05%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 184.46%
    1.008 × 18 = 18.144 g/mol
  • N Nitrogen × 413.78%
    14.007 × 4 = 56.028 g/mol
  • O Oxygen × 13.94%
    15.999 × 1 = 15.999 g/mol
  • S Sulfur × 215.77%
    32.06 × 2 = 64.120 g/mol
Look up another formula

Compounds with the formula C21H18N4OS2

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

Showing 1 to 28 of 28 compounds

2-((4-Allyl-5-(2-thienyl)-4H-1,2,4-triazol-3-yl)thio)-N-(1-naphthyl)acetamide chemical structure, C21H18N4OS2, CAS 578004-41-8
2-((4-Allyl-5-(2-thienyl)-4H-1,2,4-triazol-3-yl)thio)-N-(1-naphthyl)acetamide
CAS 578004-41-8C21H18N4OS2
Telomerase-IN-4 chemical structure, C21H18N4OS2, CAS 2892295-10-0
Telomerase-IN-4
CAS 2892295-10-0C21H18N4OS2
3-Amino-N-(4-phenyl-1,3-thiazol-2-yl)-5,6,7,8-tetrahydrothieno[2,3-b]quinoline-2-carboxamide chemical structure, C21H18N4OS2, CAS 309741-91-1
3-Amino-N-(4-phenyl-1,3-thiazol-2-yl)-5,6,7,8-tetrahydrothieno[2,3-b]quinoline-2-carboxamide
CAS 309741-91-1C21H18N4OS2
N-(5-Ethylsulfanyl-1,3,4-thiadiazol-2-yl)-2-(4-methylphenyl)quinoline-4-carboxamide chemical structure, C21H18N4OS2, CAS 354549-93-2
N-(5-Ethylsulfanyl-1,3,4-thiadiazol-2-yl)-2-(4-methylphenyl)quinoline-4-carboxamide
CAS 354549-93-2C21H18N4OS2
N-(4-(5-(Methyl(phenyl)amino)-1,3,4-thiadiazol-2-yl)phenyl)-2-(thiophen-2-yl)acetamide chemical structure, C21H18N4OS2, CAS 1021218-11-0
N-(4-(5-(Methyl(phenyl)amino)-1,3,4-thiadiazol-2-yl)phenyl)-2-(thiophen-2-yl)acetamide
CAS 1021218-11-0C21H18N4OS2
3-Amino-N-(2-ethylsulfanylphenyl)-6-pyridin-4-ylthieno[2,3-b]pyridine-2-carboxamide chemical structure, C21H18N4OS2, CAS 445267-57-2
3-Amino-N-(2-ethylsulfanylphenyl)-6-pyridin-4-ylthieno[2,3-b]pyridine-2-carboxamide
CAS 445267-57-2C21H18N4OS2
N-(4-Methylphenyl)-2-{[4-phenyl-5-(thiophen-2-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}acetamide chemical structure, C21H18N4OS2, CAS 125745-77-9
N-(4-Methylphenyl)-2-{[4-phenyl-5-(thiophen-2-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}acetamide
CAS 125745-77-9C21H18N4OS2
2-(1-Benzylbenzimidazol-2-yl)sulfanyl-N-[(E)-thiophen-2-ylmethylideneamino]acetamide chemical structure, C21H18N4OS2, CAS 306951-41-7
2-(1-Benzylbenzimidazol-2-yl)sulfanyl-N-[(E)-thiophen-2-ylmethylideneamino]acetamide
CAS 306951-41-7C21H18N4OS2
N-[3-(Methylsulfanyl)phenyl]-2-({7-phenyl-5H-pyrrolo[3,2-D]pyrimidin-4-YL}sulfanyl)acetamide chemical structure, C21H18N4OS2, CAS 1111002-04-0
N-[3-(Methylsulfanyl)phenyl]-2-({7-phenyl-5H-pyrrolo[3,2-D]pyrimidin-4-YL}sulfanyl)acetamide
CAS 1111002-04-0C21H18N4OS2
N-(3-(2-Phenylthiazol-4-yl)phenyl)-4-propyl-1,2,3-thiadiazole-5-carboxamide chemical structure, C21H18N4OS2, CAS 1206994-89-9
N-(3-(2-Phenylthiazol-4-yl)phenyl)-4-propyl-1,2,3-thiadiazole-5-carboxamide
CAS 1206994-89-9C21H18N4OS2
N-[4-(4-Methylphenyl)-1,3-thiazol-2-yl]-2-[(4-phenyl-1H-imidazol-2-yl)sulfanyl]acetamide chemical structure, C21H18N4OS2, CAS 352563-64-5
N-[4-(4-Methylphenyl)-1,3-thiazol-2-yl]-2-[(4-phenyl-1H-imidazol-2-yl)sulfanyl]acetamide
CAS 352563-64-5C21H18N4OS2
2-((2-Phenyl-5-(p-tolyl)-1H-imidazol-4-yl)thio)-N-(thiazol-2-yl)acetamide chemical structure, C21H18N4OS2, CAS 950273-06-0
2-((2-Phenyl-5-(p-tolyl)-1H-imidazol-4-yl)thio)-N-(thiazol-2-yl)acetamide
CAS 950273-06-0C21H18N4OS2
3-Methyl-N-[(4-methylphenyl)carbamothioyl]-1-phenylthieno[2,3-c]pyrazole-5-carboxamide chemical structure, C21H18N4OS2, CAS 690696-18-5
3-Methyl-N-[(4-methylphenyl)carbamothioyl]-1-phenylthieno[2,3-c]pyrazole-5-carboxamide
CAS 690696-18-5C21H18N4OS2
2-((1,5-Diphenyl-1H-imidazol-2-yl)thio)-N-(4-methylthiazol-2-yl)acetamide chemical structure, C21H18N4OS2, CAS 765921-43-5
2-((1,5-Diphenyl-1H-imidazol-2-yl)thio)-N-(4-methylthiazol-2-yl)acetamide
CAS 765921-43-5C21H18N4OS2
N-(3-Methyl-1-(4-phenylthiazol-2-yl)-1H-pyrazol-5-yl)-2-(methylthio)benzamide chemical structure, C21H18N4OS2, CAS 1020489-33-1
N-(3-Methyl-1-(4-phenylthiazol-2-yl)-1H-pyrazol-5-yl)-2-(methylthio)benzamide
CAS 1020489-33-1C21H18N4OS2
N-[3-(Methylsulfanyl)phenyl]-2-({2-phenylpyrazolo[1,5-A]pyrazin-4-YL}sulfanyl)acetamide chemical structure, C21H18N4OS2, CAS 1021210-63-8
N-[3-(Methylsulfanyl)phenyl]-2-({2-phenylpyrazolo[1,5-A]pyrazin-4-YL}sulfanyl)acetamide
CAS 1021210-63-8C21H18N4OS2
2-[(4-Amino-5-phenylthieno[2,3-d]pyrimidin-2-yl)sulfanyl]-N-benzylacetamide chemical structure, C21H18N4OS2, CAS 1010919-86-4
2-[(4-Amino-5-phenylthieno[2,3-d]pyrimidin-2-yl)sulfanyl]-N-benzylacetamide
CAS 1010919-86-4C21H18N4OS2
(4-(1-Methyl-1H-pyrazol-4-yl)-3,4-dihydroisoquinolin-2(1H)-yl)(4-(thiophen-2-yl)thiazol-2-yl)methanone chemical structure, C21H18N4OS2, CAS 2034298-03-6
(4-(1-Methyl-1H-pyrazol-4-yl)-3,4-dihydroisoquinolin-2(1H)-yl)(4-(thiophen-2-yl)thiazol-2-yl)methanone
CAS 2034298-03-6C21H18N4OS2
2-((5-Phenyl-2-(m-tolyl)-1H-imidazol-4-yl)thio)-N-(thiazol-2-yl)acetamide chemical structure, C21H18N4OS2, CAS 901258-38-6
2-((5-Phenyl-2-(m-tolyl)-1H-imidazol-4-yl)thio)-N-(thiazol-2-yl)acetamide
CAS 901258-38-6C21H18N4OS2
2-((5-Phenyl-2-(p-tolyl)-1H-imidazol-4-yl)thio)-N-(thiazol-2-yl)acetamide chemical structure, C21H18N4OS2, CAS 901258-36-4
2-((5-Phenyl-2-(p-tolyl)-1H-imidazol-4-yl)thio)-N-(thiazol-2-yl)acetamide
CAS 901258-36-4C21H18N4OS2
N-(2-(2,4-Dimethylphenyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)benzo[d]thiazole-2-carboxamide chemical structure, C21H18N4OS2, CAS 1219901-69-5
N-(2-(2,4-Dimethylphenyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)benzo[d]thiazole-2-carboxamide
CAS 1219901-69-5C21H18N4OS2
2-((1-Phenyl-5-(p-tolyl)-1H-imidazol-2-yl)thio)-N-(thiazol-2-yl)acetamide chemical structure, C21H18N4OS2, CAS 1207022-29-4
2-((1-Phenyl-5-(p-tolyl)-1H-imidazol-2-yl)thio)-N-(thiazol-2-yl)acetamide
CAS 1207022-29-4C21H18N4OS2
2-((1-Benzyl-5-phenyl-1H-imidazol-2-yl)thio)-N-(thiazol-2-yl)acetamide chemical structure, C21H18N4OS2, CAS 1207008-48-7
2-((1-Benzyl-5-phenyl-1H-imidazol-2-yl)thio)-N-(thiazol-2-yl)acetamide
CAS 1207008-48-7C21H18N4OS2
2-((5-Phenyl-1-(p-tolyl)-1H-imidazol-2-yl)thio)-N-(thiazol-2-yl)acetamide chemical structure, C21H18N4OS2, CAS 1207023-40-2
2-((5-Phenyl-1-(p-tolyl)-1H-imidazol-2-yl)thio)-N-(thiazol-2-yl)acetamide
CAS 1207023-40-2C21H18N4OS2

Frequently asked questions

What is the molar mass of C21H18N4OS2?

The molar mass of C21H18N4OS2 is 406.52 g/mol, calculated from standard atomic weights for 21 carbon atoms, 18 hydrogen atoms, 4 nitrogen atoms, 1 oxygen atom and 2 sulfur atoms. The monoisotopic mass is 406.0922 Da.

How many compounds have the formula C21H18N4OS2?

CompoundList lists 28 compounds with the molecular formula C21H18N4OS2, including 2-((4-Allyl-5-(2-thienyl)-4H-1,2,4-triazol-3-yl)thio)-N-(1-naphthyl)acetamide, Telomerase-IN-4, 3-Amino-N-(4-phenyl-1,3-thiazol-2-yl)-5,6,7,8-tetrahydrothieno[2,3-b]quinoline-2-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 C21H18N4OS2?

C21H18N4OS2 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.