Used as a key reagent in organic synthesis, particularly in the preparation of dithioacetal derivatives and sulfur-containing heterocycles. It serves as a building block in the development of pharmaceuticals and agrochemicals due to its ability to introduce functionalized sulfur groups. Its stable, electron-rich structure makes it valuable in the synthesis of conductive organic materials and in the study of charge-transfer complexes. Also employed in the modification of polymers to enhance thermal stability and chemical resistance.