This chemical is primarily used in the field of peptide synthesis, where it serves as a protected amino acid derivative. The fluorenylmethoxycarbonyl (Fmoc) group is a key protecting group for amines, ensuring that the amino acid remains stable during the synthesis process. The diphenylbutanoic acid moiety provides structural rigidity, which can be beneficial in creating specific peptide conformations. This compound is particularly valuable in solid-phase peptide synthesis (SPPS), a method widely used to produce peptides with high purity and yield. Its application is crucial in the development of pharmaceuticals, bioactive peptides, and research tools for studying protein interactions and functions.