Used as a sulfur-containing building block in organic synthesis, particularly in the development of pharmaceuticals and agrochemicals. Its dual phenylthio groups enable selective reactions for constructing complex molecules. Also employed in the preparation of ligands for catalysis and in the synthesis of specialty polymers where sulfur linkages enhance material flexibility and thermal stability. Additionally, it serves as an intermediate in the production of certain dyes and photochemicals due to its ability to participate in radical reactions and photo-induced transformations.