Used in peptide synthesis, particularly for the introduction of benzyl-protected glutamic acid residues. It serves as a key intermediate in the production of complex peptides and proteins, enabling precise control over the sequence and structure. Its application is crucial in pharmaceutical research, where it aids in the development of therapeutic peptides, vaccines, and drug delivery systems. Additionally, it is employed in biochemical studies to explore protein folding, function, and interactions. The compound's role in solid-phase peptide synthesis (SPPS) ensures efficient and high-yield production of peptides with minimal side reactions.