Used as a key chiral building block in organic synthesis, particularly for the preparation of pharmaceutical intermediates and active pharmaceutical ingredients (APIs). The (S)-enantiomer provides stereospecificity essential for biological activity in drug molecules. Its fluorinated aromatic structure with a phenolic hydroxy group enables further derivatization to enhance pharmacokinetic properties and target selectivity. The hydrochloride salt form offers improved solubility, stability, and handling during synthetic processes. Commonly utilized in medicinal chemistry research and development for therapeutics in central nervous system (CNS) disorders, metabolic conditions, and other areas requiring enantiomerically pure compounds.