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Molecular formula

C21H18N2OS2

17 compounds have this formula on CompoundList.

Molar mass
378.51g/mol
Monoisotopic mass
378.0861Da
Atoms
44
Elements
5
Rings plus double bonds
14

The formula C21H18N2OS2 describes a molecule made of 21 carbon atoms, 18 hydrogen atoms, 2 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 × 2166.64%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 184.79%
    1.008 × 18 = 18.144 g/mol
  • N Nitrogen × 27.40%
    14.007 × 2 = 28.014 g/mol
  • O Oxygen × 14.23%
    15.999 × 1 = 15.999 g/mol
  • S Sulfur × 216.94%
    32.06 × 2 = 64.120 g/mol
Look up another formula

Compounds with the formula C21H18N2OS2

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

Showing 1 to 17 of 17 compounds

N-(3-Cyano-4,5-dimethylthiophen-2-yl)-2-phenyl-2-phenylsulfanylacetamide chemical structure, C21H18N2OS2, CAS 312703-95-0
N-(3-Cyano-4,5-dimethylthiophen-2-yl)-2-phenyl-2-phenylsulfanylacetamide
CAS 312703-95-0C21H18N2OS2
9-Thiophen-2-yl-6-thiophen-3-yl-5,6,8,9,10,11-hexahydrobenzo[b][1,4]benzodiazepin-7-one chemical structure, C21H18N2OS2, CAS 346715-71-7
9-Thiophen-2-yl-6-thiophen-3-yl-5,6,8,9,10,11-hexahydrobenzo[b][1,4]benzodiazepin-7-one
CAS 346715-71-7C21H18N2OS2
4-(3-Methylphenyl)-3-(1H-pyrrol-1-yl)-N-[(thiophen-2-yl)methyl]thiophene-2-carboxamide chemical structure, C21H18N2OS2, CAS 1105250-45-0
4-(3-Methylphenyl)-3-(1H-pyrrol-1-yl)-N-[(thiophen-2-yl)methyl]thiophene-2-carboxamide
CAS 1105250-45-0C21H18N2OS2
2-(1,3-Benzothiazol-2-ylsulfanyl)-1-(1,2,3,4-tetrahydro-9H-carbazol-9-yl)ethanone chemical structure, C21H18N2OS2, CAS 312595-79-2
2-(1,3-Benzothiazol-2-ylsulfanyl)-1-(1,2,3,4-tetrahydro-9H-carbazol-9-yl)ethanone
CAS 312595-79-2C21H18N2OS2
5-[4-(Methylsulfanyl)phenyl]-2-(thiophen-2-yl)-1,10b-dihydropyrazolo[1,5-c][1,3]benzoxazine chemical structure, C21H18N2OS2, CAS 379722-80-2
5-[4-(Methylsulfanyl)phenyl]-2-(thiophen-2-yl)-1,10b-dihydropyrazolo[1,5-c][1,3]benzoxazine
CAS 379722-80-2C21H18N2OS2
3-Benzyl-5-(1-ethyl-2(1H)-quinolylidene)rhodanine chemical structure, C21H18N2OS2, CAS 293325-60-7
3-Benzyl-5-(1-ethyl-2(1H)-quinolylidene)rhodanine
CAS 293325-60-7C21H18N2OS2
(5E)-5-[(1-Benzylindol-3-yl)methylidene]-3-ethyl-2-sulfanylidene-1,3-thiazolidin-4-one chemical structure, C21H18N2OS2, CAS 6198-11-4
(5E)-5-[(1-Benzylindol-3-yl)methylidene]-3-ethyl-2-sulfanylidene-1,3-thiazolidin-4-one
CAS 6198-11-4C21H18N2OS2
N-[3-(2-Thiophen-2-yl-2,3-dihydro-1,5-benzothiazepin-4-yl)phenyl]acetamide chemical structure, C21H18N2OS2, CAS 514186-06-2
N-[3-(2-Thiophen-2-yl-2,3-dihydro-1,5-benzothiazepin-4-yl)phenyl]acetamide
CAS 514186-06-2C21H18N2OS2
5-(1-Ethyl-6-methyl-2(1H)-quinolinylidene)-3-phenyl-2-thioxo-1,3-thiazolidin-4-one chemical structure, C21H18N2OS2, CAS 313956-35-3
5-(1-Ethyl-6-methyl-2(1H)-quinolinylidene)-3-phenyl-2-thioxo-1,3-thiazolidin-4-one
CAS 313956-35-3C21H18N2OS2
N-(3-(Benzo[d]thiazol-2-yl)-4,5-dimethylthiophen-2-yl)-2-methylbenzamide chemical structure, C21H18N2OS2, CAS 886959-95-1
N-(3-(Benzo[d]thiazol-2-yl)-4,5-dimethylthiophen-2-yl)-2-methylbenzamide
CAS 886959-95-1C21H18N2OS2
N-(3-(Benzo[d]thiazol-2-yl)-4,5-dimethylthiophen-2-yl)-2-phenylacetamide chemical structure, C21H18N2OS2, CAS 886960-39-0
N-(3-(Benzo[d]thiazol-2-yl)-4,5-dimethylthiophen-2-yl)-2-phenylacetamide
CAS 886960-39-0C21H18N2OS2
N-(3-(Benzo[d]thiazol-2-yl)thiophen-2-yl)-2-(4-ethylphenyl)acetamide chemical structure, C21H18N2OS2, CAS 923428-76-6
N-(3-(Benzo[d]thiazol-2-yl)thiophen-2-yl)-2-(4-ethylphenyl)acetamide
CAS 923428-76-6C21H18N2OS2
1-(Naphthalen-1-ylmethyl)-3-(thiophen-2-yl(thiophen-3-yl)methyl)urea chemical structure, C21H18N2OS2, CAS 2034513-67-0
1-(Naphthalen-1-ylmethyl)-3-(thiophen-2-yl(thiophen-3-yl)methyl)urea
CAS 2034513-67-0C21H18N2OS2
N-(3-(Benzo[d]thiazol-2-yl)thiophen-2-yl)-2-(3,4-dimethylphenyl)acetamide chemical structure, C21H18N2OS2, CAS 921838-86-0
N-(3-(Benzo[d]thiazol-2-yl)thiophen-2-yl)-2-(3,4-dimethylphenyl)acetamide
CAS 921838-86-0C21H18N2OS2
3-Methyl-2-{[(4-methylphenyl)methyl]sulfanyl}-6-phenyl-3H,4H-thieno[3,2-d]pyrimidin-4-one chemical structure, C21H18N2OS2, CAS 1115958-78-5
3-Methyl-2-{[(4-methylphenyl)methyl]sulfanyl}-6-phenyl-3H,4H-thieno[3,2-d]pyrimidin-4-one
CAS 1115958-78-5C21H18N2OS2
1,3-Bis[(2-methylphenyl)sulfanyl]-1,3-dihydro-2H-benzimidazol-2-one chemical structure, C21H18N2OS2, CAS 26914-51-2
1,3-Bis[(2-methylphenyl)sulfanyl]-1,3-dihydro-2H-benzimidazol-2-one
CAS 26914-51-2C21H18N2OS2
N,N'-(4-Methoxy-1,3-phenylene)dibenzenecarbothioamide chemical structure, C21H18N2OS2, CAS 105612-80-4
N,N'-(4-Methoxy-1,3-phenylene)dibenzenecarbothioamide
CAS 105612-80-4C21H18N2OS2

Frequently asked questions

What is the molar mass of C21H18N2OS2?

The molar mass of C21H18N2OS2 is 378.51 g/mol, calculated from standard atomic weights for 21 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms, 1 oxygen atom and 2 sulfur atoms. The monoisotopic mass is 378.0861 Da.

How many compounds have the formula C21H18N2OS2?

CompoundList lists 17 compounds with the molecular formula C21H18N2OS2, including N-(3-Cyano-4,5-dimethylthiophen-2-yl)-2-phenyl-2-phenylsulfanylacetamide, 9-Thiophen-2-yl-6-thiophen-3-yl-5,6,8,9,10,11-hexahydrobenzo[b][1,4]benzodiazepin-7-one, 4-(3-Methylphenyl)-3-(1H-pyrrol-1-yl)-N-[(thiophen-2-yl)methyl]thiophene-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 C21H18N2OS2?

C21H18N2OS2 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.