This chemical is primarily used in peptide synthesis, particularly in the preparation of complex peptides and proteins. It serves as a protected amino acid derivative, ensuring that specific functional groups remain intact during the synthesis process. The Boc (tert-butoxycarbonyl) group provides protection for the amino group, while the Mob (4-methoxybenzyl) group protects the thiol functionality of the penicillamine residue. This protection is crucial for achieving selective reactions and maintaining the desired peptide structure. It is commonly employed in the development of therapeutic peptides, enzyme inhibitors, and other biologically active compounds. Its application is especially significant in research involving peptide-based drug discovery and biochemical studies.