This compound is primarily utilized in the field of peptide synthesis, where it serves as a protected amino acid derivative. The benzyl group acts as a protective moiety for the carboxyl group, while the phenylmethoxycarbonyl (Z) group protects the amine functionality. This dual protection is crucial in preventing unwanted side reactions during the stepwise construction of peptides. The presence of the 4-methylbenzenesulfonic acid component enhances the stability and solubility of the compound, facilitating its handling in organic synthesis. Its application is particularly significant in the production of complex peptides for pharmaceutical research and development, where precise control over the sequence and structure of amino acids is essential.