This chemical is widely used in the field of bioconjugation and drug delivery systems. Its primary application lies in modifying peptides, proteins, and other biomolecules to enhance their solubility, stability, and bioavailability. The PEG (polyethylene glycol) chain improves water solubility and reduces immunogenicity, making it valuable for therapeutic applications. The Boc (tert-butoxycarbonyl) group serves as a protective group for amines during synthetic processes, allowing for selective reactions. It is particularly useful in the development of prodrugs and targeted drug delivery systems, where controlled release and specificity are critical. Additionally, it plays a role in creating linkers for antibody-drug conjugates (ADCs), improving the efficacy and safety of cancer treatments.