This compound is primarily utilized in the synthesis of complex organic molecules, particularly in the pharmaceutical and agrochemical industries. Its reactive chlorosulfonyl and benzoyl chloride groups make it a valuable intermediate for introducing specific functional groups into target molecules. It is often employed in the production of sulfonamide derivatives, which are key components in various drugs, including antibiotics and diuretics. Additionally, its application extends to the development of dyes and pigments, where it serves as a precursor for creating colorants with specific properties. In research, it is used to modify peptides and proteins, enabling the study of biochemical interactions and pathways. Its versatility in chemical reactions makes it a crucial reagent in organic synthesis and industrial chemistry.