Used in peptide synthesis to create modified peptides with specific biological activities. It is particularly valuable in research focused on developing peptide-based drugs, as the iodine substitution can enhance binding affinity to target proteins. This compound is also utilized in studying enzyme-substrate interactions and receptor binding mechanisms, aiding in the design of inhibitors or agonists. Additionally, it serves as a building block in the development of radiolabeled peptides for imaging and diagnostic purposes in medical research.