Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) where protection of nitrogen functionalities is required. Its structure allows for selective reactions at different sites, making it valuable in multi-step organic syntheses. Commonly employed in the preparation of protease inhibitors, receptor antagonists, and other bioactive molecules. The Cbz group can be easily removed under mild conditions, enabling efficient deprotection during final stages of drug synthesis. Also utilized in peptide chemistry and the construction of nitrogen-containing heterocycles.