Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of central nervous system agents and analgesics. Its structure allows for easy functionalization, making it valuable in constructing complex nitrogen-containing molecules. Commonly employed in the preparation of selective receptor ligands, including those targeting serotonin and dopamine receptors. Also utilized in the manufacture of certain antihistamines and anticholinergic compounds. The hydrochloride salt form enhances stability and solubility, beneficial for reaction processing and purification in drug development workflows.