Used primarily in peptide synthesis, this chemical serves as a protected form of aspartic acid, ensuring selective reactivity during the formation of peptide bonds. The Boc group safeguards the amino functionality, while the methyl ester protects the carboxyl group, preventing unwanted side reactions. The dicyclohexylamine (DCHA) salt form enhances stability and solubility, making it suitable for use in organic solvents. It is particularly valuable in solid-phase peptide synthesis (SPPS) and in the preparation of complex peptides or proteins where precise control over amino acid coupling is required. Its application extends to the development of pharmaceuticals, bioactive peptides, and research in biochemistry and molecular biology.