Used in the synthesis of pharmaceuticals, particularly as a chiral intermediate in the production of active pharmaceutical ingredients (APIs) requiring specific stereochemistry. It serves as a building block in the development of drugs targeting central nervous system disorders due to its structural similarity to certain neurotransmitters. Also employed in the preparation of beta-adrenergic receptor ligands and other bioactive molecules where enantiomeric purity is critical for efficacy and safety. Its hydrochloride salt form enhances stability and solubility, facilitating handling and reaction in aqueous or polar organic solvents during multi-step syntheses.