Used primarily as an intermediate in organic synthesis, this compound serves in the preparation of heterocyclic compounds and sulfur-containing pharmaceuticals. Its reactive thiocarbonyl group enables the formation of thiazole and thiadiazole rings, which are common scaffolds in medicinal chemistry. It is also employed in agrochemical synthesis, contributing to the development of certain pesticides and herbicides. Due to its ability to introduce methylthio functionalities, it plays a role in modifying biomolecules and in the synthesis of specialty polymers with enhanced thermal and chemical resistance.