Used as a key intermediate in the synthesis of various pharmaceutical compounds, particularly in the development of sulfonamide-based drugs. Its sulfonyl chloride group enables it to react with amines to form sulfonamides, which are widely utilized in antibiotics, diuretics, and anti-inflammatory medications. Additionally, it plays a role in agrochemical research, contributing to the creation of herbicides and pesticides. Its application extends to material science, where it is used in the preparation of specialized polymers and coatings.