Used primarily in organic synthesis, it serves as a protective group for amines, enabling selective reactions in peptide and small molecule synthesis. It is also employed in bioconjugation, facilitating the attachment of polyethylene glycol (PEG) chains to biomolecules, enhancing their stability and solubility. Additionally, it finds application in drug delivery systems, where it helps improve the pharmacokinetic properties of therapeutic agents. Its role in modifying biomolecules makes it valuable in research and pharmaceutical development.