CompoundList
Molecular formula

C21H17NO2S2

9 compounds have this formula on CompoundList.

Molar mass
379.49g/mol
Monoisotopic mass
379.0701Da
Atoms
43
Elements
5
Rings plus double bonds
14

The formula C21H17NO2S2 describes a molecule made of 21 carbon atoms, 17 hydrogen atoms, 1 nitrogen atom, 2 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 × 2166.47%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 174.52%
    1.008 × 17 = 17.136 g/mol
  • N Nitrogen × 13.69%
    14.007 × 1 = 14.007 g/mol
  • O Oxygen × 28.43%
    15.999 × 2 = 31.998 g/mol
  • S Sulfur × 216.90%
    32.06 × 2 = 64.120 g/mol
Look up another formula

Compounds with the formula C21H17NO2S2

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

Showing 1 to 9 of 9 compounds

Frequently asked questions

What is the molar mass of C21H17NO2S2?

The molar mass of C21H17NO2S2 is 379.49 g/mol, calculated from standard atomic weights for 21 carbon atoms, 17 hydrogen atoms, 1 nitrogen atom, 2 oxygen atoms and 2 sulfur atoms. The monoisotopic mass is 379.0701 Da.

How many compounds have the formula C21H17NO2S2?

CompoundList lists 9 compounds with the molecular formula C21H17NO2S2, including 5-(2H-Chromen-3-ylmethylene)-3-(4-methylbenzyl)-2-thioxo-1,3-thiazolidin-4-one, N-[4-[(E)-3-(4-Methylsulfanylphenyl)prop-2-enoyl]phenyl]thiophene-2-carboxamide, N-(Furan-2-ylmethyl)-4-(thiophen-3-yl)-N-(thiophen-3-ylmethyl)benzamide. 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 C21H17NO2S2?

C21H17NO2S2 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.