Widely used in peptide synthesis, this compound serves as a protected amino acid derivative, particularly in solid-phase peptide synthesis (SPPS). The Fmoc group provides temporary protection to the amine functionality, allowing selective reaction at the carboxylic acid site. Its chiral center ensures stereochemical control during peptide bond formation, making it valuable for synthesizing enantiomerically pure peptides. The biphenyl side chain imparts hydrophobic character, useful in the design of specific peptide sequences for pharmaceutical research, including those targeting protein–protein interactions. It is also employed in the preparation of peptide-based probes and bioactive molecules where structural precision is critical.