Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) where stereochemistry plays a critical role in biological activity. Its functional groups—amine and alcohol—allow for versatile chemical modifications, making it valuable in creating intermediates for drugs targeting the central nervous system and cardiovascular diseases. Commonly employed in asymmetric synthesis to introduce chirality, which can enhance drug efficacy and reduce side effects. Also utilized in the preparation of enzyme inhibitors and receptor agonists/antagonists. Its hydrochloride salt form improves stability and solubility, facilitating handling and purification during manufacturing processes.