This chemical is primarily used in the field of peptide synthesis. It serves as a protected amino acid derivative, where the fluorenylmethoxycarbonyl (Fmoc) group acts as a protecting group for the amino functionality. This allows for the selective deprotection and coupling of amino acids during solid-phase peptide synthesis (SPPS). The phenylpentanoic acid moiety contributes to the structural diversity of the peptide, enabling the creation of complex peptide sequences with specific biological activities. Its application is crucial in the development of therapeutic peptides, peptidomimetics, and biochemical research tools.