Used as a highly efficient sulfur transfer reagent in organic synthesis, particularly in the preparation of thiocarbonyl compounds. It enables the conversion of carbonyl groups to thiocarbonyls in ketones, aldehydes, and amides under mild conditions. Commonly applied in pharmaceutical intermediates synthesis where sulfur-containing motifs are required. Its inner salt structure enhances stability and handling safety compared to other sulfurizing agents. Also employed in the development of heterocyclic compounds and in agrochemical research for constructing thioamide and thiourea derivatives. Shows good selectivity with minimal byproduct formation, making it suitable for complex molecule functionalization.