Used in peptide synthesis as a protected amino acid derivative, particularly in the preparation of complex peptides where selective deprotection and coupling are required. The Boc (tert-butoxycarbonyl) group provides temporary protection of the amine functionality, allowing controlled stepwise assembly of peptide chains. The Z (benzyloxycarbonyl) group offers orthogonal protection that can be removed independently under mild conditions, enabling precise manipulation in multi-step syntheses. Commonly employed in solid-phase and solution-phase peptide synthesis, especially in the production of pharmaceutical intermediates and bioactive peptides. Its stability under various reaction conditions makes it suitable for use in automated peptide synthesizers.