Used as a key chiral intermediate in the synthesis of pharmaceuticals, particularly in the production of active ingredients for central nervous system (CNS) drugs. Its chiral cyclopropyl structure enables selective binding in biological systems, making it valuable in the development of antidepressants and antiviral agents. The hydrochloride salt form enhances stability and solubility, facilitating use in aqueous reaction environments. Commonly employed in asymmetric synthesis routes where stereochemistry is critical for drug efficacy.