This chemical is primarily utilized in bioconjugation and click chemistry applications. Its structure, featuring propargyl groups and PEG spacers, makes it highly effective for linking molecules, particularly in the development of drug delivery systems and bioconjugates. The sulfone group enhances stability and reactivity, enabling precise and efficient coupling reactions. It is often employed in the synthesis of antibody-drug conjugates (ADCs), where it facilitates the attachment of cytotoxic drugs to antibodies, improving targeted cancer therapies. Additionally, its PEG components enhance solubility and reduce immunogenicity, making it suitable for use in biomedical research and therapeutic formulations.