This compound is widely used in organic synthesis, particularly in peptide chemistry, as a protecting group for amines. The Boc (tert-butoxycarbonyl) group shields the amine functionality during reactions, preventing unwanted side reactions. The benzyl and PEG3 (triethylene glycol) components enhance solubility in various solvents, making it suitable for use in complex multi-step synthesis processes. It is also employed in the development of drug delivery systems, where the PEG spacer improves biocompatibility and pharmacokinetics. Additionally, it serves as a linker in bioconjugation strategies, enabling the attachment of biomolecules to surfaces or other molecules for applications in diagnostics and therapeutics.