Used as a key chiral intermediate in the synthesis of pharmaceuticals, particularly in the production of selective serotonin reuptake inhibitors (SSRIs) and other central nervous system agents. Its enantiomeric purity is critical for achieving desired biological activity and minimizing side effects in final drug products. Commonly employed in asymmetric synthesis routes where the amine group serves as a handle for further functionalization. Also utilized in the development of radiolabeled compounds for receptor binding studies due to its structural stability and specificity.