This compound is primarily used in the field of peptide synthesis as a protected amino acid derivative. It serves as a building block for constructing peptides, where the fluorenylmethoxycarbonyl (Fmoc) group acts as a protective group for the amine functionality. This allows for selective deprotection during solid-phase peptide synthesis, enabling the stepwise assembly of peptide chains. The benzyl ester group protects the carboxyl function, while the cyano group can be utilized for further chemical modifications. Its application is crucial in the development of pharmaceuticals, bioactive peptides, and research involving protein engineering.