Used primarily as an odorant in natural gas and liquefied petroleum gas (LPG) due to its strong, unpleasant smell, enabling quick detection of gas leaks. Employed in the production of pesticides, fungicides, and herbicides as a chemical intermediate. Serves in organic synthesis, particularly in pharmaceutical manufacturing and in the creation of methionine, an essential amino acid used in animal feed and nutritional supplements. Also utilized in some industrial processes involving sulfur-containing compounds.