This chemical is widely used in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS) methods. It serves as a protected form of D-aspartic acid, where the Fmoc (fluorenylmethyloxycarbonyl) group acts as a temporary protecting group for the amino group, and the OMpe (4-methoxyphenethyl) group protects the carboxylic acid side chain. This protection strategy ensures selective reactions during peptide chain assembly, preventing unwanted side reactions. It is especially valuable in the synthesis of complex peptides and proteins, where precise control over amino acid incorporation is critical. Additionally, it is utilized in the development of peptide-based pharmaceuticals, biomaterials, and research tools, enabling the creation of peptides with specific functional properties. Its compatibility with automated peptide synthesizers further enhances its utility in high-throughput applications.