Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) where stereochemistry plays a critical role in biological activity. Its structure allows for the introduction of a morpholine ring with defined chirality, making it valuable in drug discovery for optimizing solubility, metabolic stability, and target binding. Commonly employed in the preparation of kinase inhibitors, antiviral agents, and central nervous system (CNS) therapeutics. The hydrochloride salt form enhances stability and handling during synthetic processes.