Used as a key chiral intermediate in the synthesis of pharmaceutical agents, particularly in the development of central nervous system (CNS) drugs. Its structural features allow for selective interactions with biological targets, making it valuable in the production of active pharmaceutical ingredients (APIs) requiring high enantiomeric purity. Commonly employed in the preparation of serotonin and norepinephrine reuptake inhibitors, it contributes to the efficacy and safety profile of the final drug product. Its hydrochloride salt form enhances stability and solubility, facilitating handling and formulation in industrial processes.