Used primarily in peptide synthesis as a protecting group for glutamic acid. The Boc group safeguards the amino group during reactions, while the benzyl ester protects the carboxyl group. This compound is particularly valuable in solid-phase peptide synthesis (SPPS) and solution-phase synthesis, enabling the controlled assembly of peptides. It is also employed in the preparation of complex peptide structures, such as those used in pharmaceutical research and drug development. The DCHA (dicyclohexylamine) salt form enhances stability and solubility, facilitating handling and storage. This chemical is essential in producing bioactive peptides, including hormones, antibiotics, and enzyme inhibitors.