Used as a chiral intermediate in the synthesis of pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) requiring high enantiomeric purity. Its structure supports the creation of fluorinated aromatic compounds with enhanced metabolic stability and binding affinity. Commonly employed in the production of central nervous system (CNS) agents and selective enzyme inhibitors. The hydrochloride salt form improves stability and crystallinity, facilitating handling and purification during drug manufacturing.