Used primarily as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of targeted therapies where sulfone and amine functionalities play a role in binding and solubility. Its epoxide-like thiirane group allows for selective ring-opening reactions, enabling conjugation to biomolecules or polymers in drug delivery systems. Commonly employed in research settings for modifying peptide-based drugs or creating covalent inhibitors due to its reactive sulfonyl and amine groups. Also utilized in the preparation of resins and functionalized coatings where controlled reactivity and stability are required.