Used in peptide synthesis as a protected amino acid derivative, it facilitates the construction of complex peptides by providing stability during the reaction process. The Boc (tert-butoxycarbonyl) group acts as a protective shield for the amino group, while the chlorine atoms on the phenyl ring enhance the compound's reactivity in specific coupling reactions. It is particularly valuable in solid-phase peptide synthesis (SPPS) and the production of biologically active peptides or peptidomimetics. Its application is crucial in pharmaceutical research, where precise peptide sequences are required for drug development and biochemical studies.