This compound is primarily used in peptide synthesis as a protected form of aspartic acid. The Boc (tert-butoxycarbonyl) group safeguards the amino group, while the OBZL (benzyl ester) protects the carboxyl group, allowing selective reactions during peptide chain assembly. It is particularly valuable in solid-phase peptide synthesis (SPPS), where precise control over amino acid coupling is essential. Its application extends to the production of complex peptides and proteins for research, pharmaceuticals, and biotechnology, enabling the creation of therapeutic agents, enzyme inhibitors, and biomaterials. The protective groups can be removed under specific conditions, ensuring the integrity of the peptide structure.