Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of central nervous system (CNS) agents and kinase inhibitors. Its fluorinated aromatic structure enhances binding selectivity and metabolic stability in drug candidates. Commonly employed in asymmetric synthesis to introduce stereochemistry in active pharmaceutical ingredients (APIs). Also utilized in the preparation of intermediates for neurodegenerative disease treatments and psychiatric medications due to its amine functionality and structural rigidity.