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 specific sites in complex molecule assembly, making it valuable in peptide and heterocyclic chemistry. Commonly employed in multi-step organic syntheses for alkaloids and other bioactive compounds. The Cbz group can be easily removed under mild conditions, enabling efficient deprotection during final stages of drug synthesis.