Used as a highly effective sulfonylating agent in organic synthesis, particularly in the preparation of sulfonamides, which are key motifs in pharmaceuticals and agrochemicals. It reacts selectively with amines under mild conditions, making it valuable in drug discovery and development. Its stability and reactivity profile allow for use in multi-step syntheses where functional group tolerance is essential. Additionally, it serves as a derivatizing agent in analytical chemistry for the detection and quantification of amine-containing compounds.