This compound is widely used in the field of bioconjugation and drug delivery systems. Its structure, featuring a polyethylene glycol (PEG) spacer, enhances solubility and stability of conjugated molecules, making it valuable in pharmaceutical applications. The Boc (tert-butoxycarbonyl) protecting group allows for controlled deprotection during synthetic processes, enabling precise modifications in peptide and protein synthesis. Additionally, the aldehyde group facilitates covalent bonding with amines, making it useful for labeling, crosslinking, or immobilizing biomolecules in research and diagnostic assays. Its applications extend to the development of targeted therapies, where it helps improve the pharmacokinetic properties of therapeutic agents.