This chemical is widely used in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS) methods. It serves as a protected amino acid derivative, where the Fmoc (9-fluorenylmethoxycarbonyl) group protects the amino group, and the Z (benzyloxycarbonyl) group protects the side chain of lysine. This protection ensures selective reactions during peptide chain assembly, preventing unwanted side reactions. It is especially valuable in synthesizing complex peptides and proteins for research in biochemistry, pharmaceuticals, and biotechnology. Additionally, it is utilized in the development of peptide-based drugs, vaccines, and diagnostic tools due to its stability and compatibility with automated peptide synthesizers. Its role in producing high-purity peptides makes it essential in both academic and industrial settings.