Used primarily as an intermediate in organic synthesis, particularly in the preparation of biologically active compounds. Its sulfonamide group allows for hydrogen bonding and ionic interactions, making it valuable in the development of pharmaceuticals, especially enzyme inhibitors. It also serves in the synthesis of specialty polymers and functional materials where sulfonamide moieties enhance solubility or thermal stability. Additionally, it can act as a building block in the design of novel surfactants and catalysts due to its reactive functional groups and linear structure.