Used in peptide synthesis as a protected intermediate, particularly in the preparation of complex peptides and proteins. The CbZ (carbobenzyloxy) group serves as an amine-protecting moiety, allowing selective deprotection during stepwise assembly. Its application is prominent in solid-phase and solution-phase peptide coupling, where the serine hydroxyl and glycine backbone support further chain elongation. Commonly employed in research settings for developing bioactive peptides, enzyme substrates, and pharmaceutical intermediates.