Used in bioconjugation to introduce a protected amine group into molecules, enabling controlled coupling reactions in drug delivery systems and protein modifications. The Boc-protected amine allows for selective deprotection under mild acidic conditions, making it ideal for multi-step synthesis in pharmaceutical and biotech applications. Commonly employed in the development of PEGylated therapeutics to improve solubility, stability, and reduce immunogenicity of peptides and small molecules. Also utilized in surface functionalization of nanoparticles and biomaterials where controlled reactivity is required.