Used as a key intermediate in the synthesis of β-blocker pharmaceuticals, particularly in the production of (S)-propranolol and related compounds. Its chiral structure enables selective adrenergic receptor blocking, making it valuable in treating cardiovascular conditions such as hypertension and arrhythmias. The hydrochloride salt form enhances stability and solubility, facilitating its use in industrial-scale drug manufacturing. Also employed in research for developing new chiral amines with potential therapeutic activity.