This chemical is primarily used in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS). It serves as a protected amino acid derivative, where the fluoren-9-ylmethoxycarbonyl (Fmoc) group protects the amino functionality during the synthesis process. The hydroxyl and iodo groups on the phenyl ring make it a versatile building block for introducing specific modifications or labels into peptides. It is especially useful in the synthesis of peptides designed for biological studies, such as receptor binding assays or imaging applications, where the iodine atom can be utilized for radiolabeling. Additionally, its structure allows for further functionalization, making it valuable in the development of peptide-based drugs or probes.