Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of active pharmaceutical ingredients (APIs) where a protected amine functionality is required. The Boc-protected amine allows for selective reactions at other sites in the molecule during multi-step syntheses. Commonly employed in the preparation of kinase inhibitors, receptor agonists, and antagonists. Its rigid cyclohexyl backbone with defined stereochemistry helps influence the conformational stability and binding affinity of the final drug molecule. The hydrochloride salt form improves stability and handling during manufacturing processes.