Used primarily in bioconjugation and chemical synthesis, this compound serves as a versatile linker for attaching functional groups or biomolecules. Its azido group enables click chemistry reactions, particularly with alkynes, facilitating the creation of stable triazole linkages. The PEG (polyethylene glycol) spacer enhances solubility and reduces steric hindrance, making it ideal for modifying peptides, proteins, or nanoparticles. The Boc (tert-butyloxycarbonyl) protecting group ensures selective deprotection during multi-step synthetic processes, allowing precise control over reaction sequences. It is widely applied in drug delivery systems, surface functionalization, and the development of bioconjugates for targeted therapies.