BZ-DL-ARG-OH Hydrochloride is primarily used in biochemical research and peptide synthesis. It serves as a protected form of arginine, which is essential for creating specific peptide sequences without unwanted side reactions. This compound is particularly valuable in the study of protein structure and function, aiding in the development of therapeutic peptides and enzyme inhibitors. Additionally, it is utilized in the preparation of modified peptides for drug discovery and biological studies, helping researchers explore interactions at the molecular level. Its stability and reactivity make it a crucial reagent in advanced chemical and pharmaceutical applications.