Used in peptide synthesis and pharmaceutical research, particularly in the development of bioactive peptides and enzyme inhibitors. It serves as a building block for creating modified peptides with enhanced stability or specific biological activity. Applied in studies targeting receptor interactions and signal transduction pathways. Also utilized in the design of peptide-based drugs for therapeutic purposes, such as treating metabolic disorders or neurological conditions. Its chlorine substitutions can improve peptide binding affinity and resistance to enzymatic degradation.