Used as a chiral protecting group reagent in organic synthesis, particularly in the preparation of enantiomerically pure compounds. Its main application lies in peptide synthesis and the construction of complex molecules where stereochemical control is critical. The tert-butyl carbamate (Boc) group and the benzyl carbamate (Cbz) group provide orthogonal protection for amines, allowing selective deprotection under mild acidic conditions without affecting other sensitive functional groups. The benzyl group can be removed selectively via hydrogenolysis, enabling stepwise assembly of multifunctional molecules. Commonly employed in pharmaceutical research for synthesizing chiral intermediates, especially in the development of bioactive molecules and asymmetric synthesis.