Both isomers of dihydrothiophene are colorless liquids with a thioether-like odor.

In terms of their reactivity, both isomers exhibit characteristics of alkenes and thioethers, undergoing addition reactions at carbon and oxidation at sulfur.

[1] Dihydrothiophenes contribute to the aroma of the white truffle.

The major component is 3-methyl-4,5-dihydrothiophene (alternative name:4-methyl-2,3-dihydrothiophene), produced by bacterial colonies in the truffle's fruiting bodies.

[2] This article about a heterocyclic compound is a stub.