Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of active pharmaceutical ingredients (APIs) where protected amine functionalities are required. Its structure allows for selective reactions at the amino group after deprotection, making it valuable in multi-step organic syntheses. Commonly employed in the preparation of kinase inhibitors and other bioactive molecules due to its stability and compatibility with various reaction conditions. The hydrochloride salt form enhances solubility and handling in aqueous or polar environments during manufacturing processes.