This chemical is primarily utilized in organic synthesis as a versatile intermediate. It is often employed in the preparation of sulfonamide derivatives, which are critical in pharmaceutical development, particularly for creating compounds with antibacterial or anti-inflammatory properties. Additionally, it serves as a key reagent in the modification of polymers and coatings, enhancing their chemical resistance and durability. Its chlorosulfonyl group makes it valuable for introducing sulfonyl functionalities into target molecules, enabling the creation of complex chemical structures used in advanced material science and drug discovery.