Used as a key reagent in organic synthesis, particularly in the preparation of sulfones and sulfoxides through sulfination reactions. It serves as a source of the pyridine-2-sulfinyl group, enabling the introduction of sulfur-containing functionalities into pharmaceutical intermediates and agrochemicals. Its reactivity makes it valuable in radical reactions and transition-metal-catalyzed couplings where controlled sulfur transfer is required. Additionally, it finds use in the development of functional materials and in research laboratories for modifying heterocyclic compounds to enhance biological activity or physicochemical properties.