Used extensively in peptide synthesis as a protecting group for amino acids, particularly in solid-phase peptide synthesis (SPPS). The fluorenylmethoxycarbonyl (Fmoc) group safeguards the amino group during the coupling process, allowing for selective deprotection without affecting other functional groups. Its steric bulk and stability under basic conditions make it ideal for constructing complex peptides. After synthesis, the Fmoc group is easily removed using piperidine, enabling the continuation of peptide chain elongation. This compound is crucial in the production of pharmaceuticals, bioactive peptides, and research-grade peptides for structural and functional studies.