This compound is primarily utilized in peptide synthesis as a protected form of lysine. The benzyloxycarbonyl (Z) group protects the amino group of lysine, preventing unwanted reactions during peptide chain assembly. The benzyl ester (OBzl) protects the carboxyl group, ensuring selective coupling reactions. It is particularly useful in solid-phase peptide synthesis (SPPS) and solution-phase synthesis, where controlled deprotection is required. The hydrochloride form enhances its stability and solubility in various solvents, making it easier to handle in laboratory settings. Its applications extend to the production of bioactive peptides, pharmaceuticals, and research reagents in biochemistry and molecular biology.