Used as a key chiral intermediate in the synthesis of pharmaceutical agents, particularly in the production of central nervous system (CNS) active compounds. Its fluorinated phenyl group and chiral center make it valuable for developing drugs with high selectivity and improved metabolic stability. Commonly employed in the preparation of serotonin and norepinephrine reuptake inhibitors, where the stereochemistry plays a critical role in biological activity. The ester functionality allows for easy further derivatization, making it suitable for use in multi-step organic syntheses. Its hydrochloride salt form enhances solubility and handling in aqueous and polar environments during drug development processes.