Used as an intermediate in the synthesis of sulfonamide-based carbonic anhydrase inhibitors, such as dichlorphenamide. These medications are employed to treat glaucoma, epilepsy, and altitude sickness due to their ability to reduce intraocular pressure and act as diuretics. Its structure allows for selective enzyme inhibition, making it valuable in pharmaceutical development. Also utilized in research for designing new sulfonamide-based therapeutic agents.