Used primarily as a reagent in organic synthesis, this chemical is valuable for introducing sulfonamide groups into molecules, which is crucial in the development of pharmaceuticals and agrochemicals. It serves as a key intermediate in the production of sulfonamide-based drugs, which are widely used as antibiotics, diuretics, and antidiabetic agents. Additionally, it is employed in the synthesis of dyes and pigments, where its sulfonyl chloride group facilitates the attachment of chromophores to various substrates. In research, it is utilized for modifying peptides and proteins, enabling the study of biological processes and the development of targeted therapies. Its reactivity with amines and alcohols makes it a versatile tool in the creation of complex organic compounds.