Used extensively in peptide synthesis as a protecting group for amino acids, particularly in solid-phase peptide synthesis (SPPS). The Fmoc group provides stability during the synthesis process and can be selectively removed under mild basic conditions without affecting other functional groups. It is especially valuable in the synthesis of complex peptides and proteins, ensuring high purity and yield. Additionally, it finds applications in the development of pharmaceuticals, where precise peptide sequences are crucial for drug efficacy. Its role in organic chemistry research is also significant, aiding in the study of peptide structures and interactions.