1,2-Bis(phenylsulfinyl)ethane is primarily utilized in organic synthesis as a versatile reagent. It is often employed in the preparation of complex organic molecules, particularly in the formation of sulfur-containing compounds. The chemical serves as a key intermediate in the synthesis of various pharmaceuticals, where its unique structure facilitates the introduction of sulfinyl groups into target molecules. Additionally, it is used in the development of ligands for catalysis, aiding in the creation of asymmetric catalysts that are crucial for producing enantiomerically pure substances. Its application extends to material science, where it contributes to the design of novel polymers and coatings with enhanced properties.