N-epsilon-FMOC-N-alpha-BOC-L-Lysine is widely used in peptide synthesis as a protected form of lysine. The FMOC group protects the epsilon-amino group, while the BOC group protects the alpha-amino group, allowing selective deprotection during the synthesis process. This compound is particularly valuable in solid-phase peptide synthesis (SPPS), where it ensures the precise assembly of peptides by preventing unwanted side reactions. It is also employed in the production of custom peptides for research, pharmaceuticals, and biotechnology applications, where controlled and efficient synthesis of complex peptides is required. Additionally, its use extends to the development of peptide-based drugs, diagnostics, and biomaterials, where the protection and deprotection of functional groups are critical for achieving desired molecular structures.