This chemical is primarily used in peptide synthesis as a protected amino acid derivative. It serves as a key intermediate in the construction of complex peptides, particularly in solid-phase peptide synthesis (SPPS). The fluorenylmethoxycarbonyl (Fmoc) group acts as a protecting group for the amino functionality, preventing unwanted reactions during peptide chain assembly. The tert-butyl ester group protects the carboxyl group, ensuring selective deprotection and coupling steps. The iodine atom in the structure provides a reactive site for further functionalization or cross-coupling reactions, making it valuable in the synthesis of modified peptides or peptide-based compounds. Its application is crucial in pharmaceutical research, particularly in the development of peptide drugs, bioactive peptides, and peptidomimetics.