C3H4S2

The molecular formula C3H4S2 may refer to:


 * Dithioles
 * 1,2-Dithiole, a type of heterocycle with the parent 1,2-dithiacyclopentene
 * 1,3-Dithiole, a type of heterocycle with the parent 1,3-dithiacyclopentene