Used primarily in peptide synthesis as a protected amino acid derivative, this compound enables selective coupling reactions due to the Fmoc group, which provides base-labile protection for the amine functionality. The chloro-substituted benzoic acid structure allows for further functionalization or conjugation, making it useful in the development of bioactive molecules, pharmaceutical intermediates, and specialty polymers. Its stability under various reaction conditions supports its role in solid-phase synthesis and the preparation of complex peptides with high purity.