Used as a chiral building block in pharmaceutical synthesis, particularly in the development of active pharmaceutical ingredients where stereochemistry plays a critical role in biological activity. Its amine functionality allows for coupling reactions, making it valuable in the preparation of intermediates for drugs targeting central nervous system disorders. The hydrochloride salt form enhances stability and solubility, facilitating handling and storage in industrial processes. Commonly employed in asymmetric synthesis routes due to the defined (S)-configuration, enabling precise control over the stereochemical outcome of key reactions.