Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of sulfonamide-based drugs with antimicrobial and diuretic properties. It serves as a building block in the preparation of carbonic anhydrase inhibitors, which are important in treating glaucoma and certain types of epilepsy. Its bromine substituents allow for further functionalization via cross-coupling reactions, making it valuable in medicinal chemistry for structure-activity relationship studies. Also employed in the production of dyes and functionalized polymers due to its reactive amino and sulfonamide groups.