Used as a highly effective reagent in organic synthesis, particularly as a precursor for generating electrophilic aminating agents. It plays a key role in the preparation of nitrogen-containing compounds through electrophilic amination of carbon nucleophiles. Commonly employed in the synthesis of heterocycles and functionalized amines, which are important in pharmaceutical and agrochemical industries. Its strong electron-withdrawing sulfonyl groups enhance reactivity and stability of intermediates, making it valuable in transition metal-catalyzed reactions and modern C–H functionalization processes.