Used as a chiral intermediate in the synthesis of pharmaceuticals, particularly in the production of selective serotonin reuptake inhibitors (SSRIs) and other central nervous system agents. Its fluorinated aromatic structure and chiral amine functionality make it valuable for enhancing metabolic stability and binding selectivity in drug molecules. Commonly employed in asymmetric synthesis to introduce stereochemically defined side chains in active pharmaceutical ingredients (APIs). Also utilized in the development of fluorinated analogs for improved bioavailability and target affinity.