This chemical is widely used in bioconjugation and chemical biology for linking molecules, particularly in the development of antibody-drug conjugates (ADCs) and targeted drug delivery systems. Its PEG7 spacer provides flexibility and solubility, enhancing the stability and bioavailability of the conjugates. The T-Boc protecting group allows for controlled deprotection, enabling precise attachment of aminooxy-functionalized molecules to aldehydes or ketones. It is also employed in the synthesis of peptide-based therapeutics and imaging agents, where its properties facilitate efficient and site-specific modifications. Additionally, it is utilized in surface modification of nanoparticles and biomaterials to improve their biocompatibility and functionality.