Used extensively in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS) methods. It serves as a protecting group for the amino acid proline, ensuring selective reactions during the assembly of peptide chains. The Fmoc group is easily removed under mild basic conditions, making it ideal for synthesizing complex peptides without disrupting other sensitive functional groups. Commonly applied in the production of therapeutic peptides, research peptides, and in the development of peptide-based drugs. Its stability and compatibility with automated synthesizers make it a valuable tool in both academic and industrial settings.