Widely used in peptide synthesis as an amino-protecting group. The fluorenylmethyloxycarbonyl (Fmoc) group allows for mild deprotection conditions, typically using bases like piperidine, making it ideal for solid-phase peptide synthesis. It provides stability during coupling reactions while being selectively removed without affecting other protecting groups. Its UV-detectable properties also aid in monitoring reaction progress. Commonly applied in the production of therapeutic peptides, research reagents, and in the development of peptide-based drugs.