This chemical is widely used in peptide synthesis as a protecting group for glutamic acid. The Boc (tert-butyloxycarbonyl) group safeguards the amino group, while the OBzl (benzyl ester) protects the carboxyl group during the synthesis process. It is particularly valuable in solid-phase peptide synthesis (SPPS) to ensure selective reactions and prevent unwanted side reactions. Additionally, it is employed in the preparation of complex peptides and proteins, contributing to advancements in pharmaceuticals, biochemistry, and medicinal chemistry research. Its stability under various reaction conditions makes it a reliable choice for constructing peptide chains with high precision.