Used primarily as an intermediate in organic synthesis, particularly in the preparation of sulfones and sulfoxides through reactions with nucleophiles such as Grignard reagents or organolithium compounds. It serves as a sulfinylating agent, enabling the introduction of the -SO– functional group into target molecules. Its reactivity makes it valuable in pharmaceutical and agrochemical synthesis where sulfur-containing motifs are required. Due to its sensitivity to moisture, it is typically handled under anhydrous conditions and used in situ where possible.