This chemical is widely used in bioconjugation and click chemistry applications due to its unique structure. It serves as a linker molecule, enabling the attachment of various biomolecules, such as proteins, peptides, or antibodies, to other functional groups or surfaces. Its sulfone and PEG components enhance solubility and stability, making it suitable for use in aqueous environments. The propargyl group allows for efficient copper-catalyzed azide-alkyne cycloaddition (CuAAC) reactions, a key process in labeling and modifying biomolecules. It is particularly useful in drug delivery systems, diagnostic assays, and the development of targeted therapies, where precise and stable conjugation is critical. Additionally, its PEG chains help reduce immunogenicity and improve biocompatibility in biomedical applications.