Sulfides are sometimes called thioethers, especially in the old literature. The two organic substituents are indicated by the prefixes. (CH)S is called dimethylsulfide. Some sulfides are named by modifying the common name for the corresponding ether. For example, CHSCH is methyl phenyl sulfide, but is more commonly called thioanisole, since its structure is related to that for anisole, CHOCH.
The modern systematic nomenclature in chemistry for the trival name thioether is sulfane.