Used as a building block in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS). It serves as a protective group for amines, ensuring selective reactions during the assembly of peptide chains. Commonly employed in the production of complex peptides and proteins for research and pharmaceutical applications. Its FMOC group is easily removed under mild conditions, making it a versatile reagent in organic and medicinal chemistry. Also utilized in the development of peptide-based drugs, diagnostics, and biomaterials.