Used in peptide synthesis as a building block for creating custom peptides with specific biological activities. Its incorporation into peptides can enhance binding affinity and stability, making it valuable in drug development and biochemical research. The chlorine atoms on the phenyl ring can influence the peptide's interaction with target proteins, particularly in studies involving enzyme inhibition or receptor modulation. It is also utilized in the design of peptide-based therapeutics for conditions like cancer, inflammation, and infectious diseases. Additionally, it serves as a tool in studying structure-activity relationships to optimize peptide performance.