This chemical is widely used in the field of bioconjugation and drug delivery systems. Its structure, featuring PEG (polyethylene glycol) chains and Boc (tert-butoxycarbonyl) protecting groups, makes it highly suitable for modifying biomolecules to improve their solubility, stability, and biocompatibility. It is often employed in the development of peptide-based therapeutics, where it helps enhance the pharmacokinetic properties of the peptides by reducing immunogenicity and prolonging circulation time in the body. Additionally, it is utilized in the synthesis of complex drug conjugates, such as antibody-drug conjugates (ADCs), where it acts as a linker to connect the drug molecule to the targeting antibody. The Boc groups provide temporary protection during synthesis, allowing for selective deprotection and further functionalization. Its application is also seen in the preparation of hydrogels and other biomaterials for controlled drug release and tissue engineering. Overall, this compound plays a critical role in advancing targeted therapies and improving the efficacy of various pharmaceutical formulations.