Used primarily as a reagent in organic synthesis, it is particularly valuable in the preparation of sulfonamides, which are compounds with significant pharmaceutical applications. This chemical acts as a sulfonylating agent, introducing the sulfonyl group into organic molecules, a step crucial in the development of various drugs, including antibiotics and diuretics. Additionally, it is employed in the modification of peptides and proteins, enhancing their stability and biological activity. Its role in creating complex molecular structures makes it essential in medicinal chemistry and drug discovery processes.