This chemical is widely used in the field of bioconjugation and drug delivery systems. Its structure, featuring PEG (polyethylene glycol) chains and a Boc (tert-butoxycarbonyl) protecting group, makes it highly suitable for modifying peptides, proteins, and other biomolecules. The PEG chains enhance solubility and stability, while the Boc group allows for controlled deprotection during synthesis. It is particularly valuable in creating linkers for antibody-drug conjugates (ADCs) and in developing targeted therapeutic agents. Additionally, its biocompatibility and ability to reduce immunogenicity make it a preferred choice in pharmaceutical research and development.