Used in peptide synthesis as a protected lysine derivative, facilitating the creation of specific peptide sequences. It is particularly valuable in research and pharmaceutical development where precise amino acid incorporation is required. The Z (benzyloxycarbonyl) group protects the lysine side chain, preventing unwanted reactions during synthesis. This compound is essential in producing peptides for drug discovery, protein studies, and biochemical applications. Its stability and compatibility with solid-phase peptide synthesis make it a key reagent in organic and medicinal chemistry.