Used primarily in peptide synthesis, this compound serves as a protecting group for lysine residues. Its dual Fmoc groups ensure selective deprotection during solid-phase peptide synthesis, allowing for precise control over the assembly of complex peptides. It is particularly valuable in the production of peptides with multiple lysine units, where selective deprotection is critical. Additionally, it finds application in the development of peptide-based drugs, biomaterials, and research tools, where maintaining the integrity of specific amino acids is essential. Its stability under standard synthesis conditions makes it a reliable choice for advanced peptide chemistry.