Used primarily as an intermediate in the synthesis of pharmaceuticals and agrochemicals, this compound plays a key role in the production of sulfonamide-based drugs, which are widely employed as antibiotics, diuretics, and antidiabetic agents. Its reactive sulfonyl chloride group enables it to form sulfonamide linkages, making it valuable in creating compounds with specific biological activities. Additionally, it is utilized in the development of dyes and pigments due to its ability to introduce sulfonamide functionalities into organic molecules. In research, it serves as a building block for designing and synthesizing novel chemical entities with potential therapeutic applications.