This chemical is widely used in bioconjugation and protein modification processes due to its reactive propargyl group and PEG (polyethylene glycol) spacers. It serves as a linker in drug delivery systems, enabling the attachment of therapeutic agents to targeting molecules or nanoparticles. The sulfone group enhances stability, while the PEG chains improve solubility and reduce immunogenicity. It is also employed in click chemistry reactions, facilitating the development of bioimaging probes and diagnostic tools. Additionally, it is utilized in the synthesis of advanced materials, such as hydrogels, for biomedical applications.