Used in bioconjugation and drug delivery systems, this compound serves as a linker to attach bioactive molecules to nanoparticles, proteins, or other carriers. Its PEG (polyethylene glycol) spacer enhances solubility, reduces immunogenicity, and improves stability, making it ideal for therapeutic applications. The Boc (tert-butyloxycarbonyl) group protects the amine during synthesis, while the terminal amine allows for further functionalization. Commonly applied in peptide synthesis, targeted cancer therapies, and the development of antibody-drug conjugates (ADCs). Its properties also make it suitable for creating hydrogels and other biomaterials in tissue engineering.