Used as a cross-linking agent in both polymer chemistry and biochemical research. In polymer chemistry, particularly in the development of specialty rubbers and elastomers, it enhances thermal stability and mechanical strength by forming disulfide bridges between polymer chains. Also employed in the synthesis of functionalized surfaces for biosensors, where its thiosulfonate groups react selectively with thiol-containing biomolecules. In biochemical applications, it binds to sulfhydryl groups on proteins, especially those containing cysteine residues, to temporarily stabilize protein structures, aiding in the study of protein folding and protein-protein interactions. Its bifunctional reactivity makes it valuable in controlled radical polymerization, the preparation of stimuli-responsive materials, and systems requiring specific control of biomolecular assembly.