This compound is primarily used in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS) methods. It serves as a building block for constructing peptides with specific sequences, leveraging the Fmoc (fluorenylmethyloxycarbonyl) protecting group for temporary protection of the amino group during synthesis. The inclusion of the Cys(Psi(Dmp,H)pro) moiety allows for the introduction of a pseudoproline dipeptide, which helps to minimize aggregation and improve the efficiency of peptide chain elongation. This is especially useful in synthesizing challenging peptides, such as those with hydrophobic or sterically hindered sequences. Additionally, the compound is employed in the development of peptide-based drugs, biomaterials, and research tools, where precise control over peptide structure and function is critical. Its application is also relevant in studying protein folding, peptide-protein interactions, and designing peptide mimetics for therapeutic or diagnostic purposes.