Used as a key intermediate in the synthesis of various pharmaceutical compounds, particularly in the development of antimalarial and antibacterial agents. It plays a crucial role in the production of sulfonamide derivatives, which are known for their therapeutic properties. Additionally, it is employed in organic synthesis to create complex molecules for research and drug discovery. Its reactive sulfonyl chloride group makes it valuable for forming bonds with amines and other nucleophiles, enabling the construction of diverse chemical structures.