This chemical is primarily utilized in the field of bioconjugation and drug delivery systems. Its structure, featuring Boc-protected amine and PEG (polyethylene glycol) chains, makes it highly suitable for modifying biomolecules and enhancing their solubility, stability, and biocompatibility. It is often employed in the synthesis of peptide-based therapeutics, where the PEGylation process helps to prolong the circulation time of drugs in the bloodstream, reducing immunogenicity and improving efficacy. Additionally, it serves as a linker in the development of antibody-drug conjugates (ADCs), enabling the precise attachment of cytotoxic agents to antibodies for targeted cancer therapy. Its versatile design also supports applications in creating hydrogels and other biomaterials for controlled drug release and tissue engineering.