Used as an intermediate in peptide synthesis, particularly in the protection and selective deprotection of amino groups during the preparation of complex peptides and proteins. The benzyloxycarbonyl (Cbz) group serves as a protecting moiety for the amino function, allowing controlled coupling reactions without side reactions. The tert-butoxy component helps stabilize the carboxyl end, making it suitable for stepwise solid-phase or solution-phase peptide assembly. Dicyclohexylamine acts as a counterion or byproduct in coupling steps, often forming insoluble salts that aid in purification. This compound is valuable in pharmaceutical research and development where precise peptide chain elongation is required.