Used as a key chiral intermediate in the synthesis of pharmaceutical agents, particularly in the production of selective serotonin reuptake inhibitors (SSRIs) and other central nervous system (CNS) active compounds. Its fluorinated aromatic structure and stereochemistry make it valuable for enhancing drug potency and metabolic stability. Commonly employed in the development of antidepressants and anxiolytic drugs, where the (S)-enantiomer contributes to targeted receptor binding. Also utilized in research settings for asymmetric synthesis and medicinal chemistry optimization.