Used in the rubber industry as a vulcanization accelerator, particularly in synthetic rubbers such as styrene-butadiene (SBR) and nitrile rubber (NBR), for tires and industrial rubber goods. It improves heat resistance, durability, strength, flexibility, and abrasion resistance. Commonly used in combination with other accelerators like sulfur or sulfenamides to control cross-linking rates and prevent premature vulcanization.

Also serves as a corrosion inhibitor in metalworking fluids and cooling systems.

Employed in the synthesis of pharmaceuticals, including antithyroid and antimicrobial agents, as well as fungicides, insecticides, and antioxidants for engine oils, due to its mercapto group providing high biological activity.

Acts as a chemical intermediate in agrochemicals and dyes.

Additionally, utilized in electroplating processes to enhance metal deposit quality.

In wastewater treatment, it functions as a heavy metal chelator, with the -SH group effectively binding metals such as copper, lead, and cadmium.