1,2-Bis(phenylthio)ethane is primarily used as a reagent in organic synthesis, particularly in the preparation of sulfur-containing compounds. It serves as a key intermediate in the development of pharmaceuticals, where it aids in the formation of complex molecular structures. Additionally, this compound is utilized in the production of polymers and resins, contributing to their stability and performance. Its application extends to the field of materials science, where it is employed in the synthesis of advanced materials with specific electronic or mechanical properties. In industrial settings, it acts as a vulcanization agent in rubber manufacturing, enhancing the durability and elasticity of rubber products.