Used as a chiral building block in pharmaceutical synthesis, particularly in the development of active pharmaceutical ingredients requiring stereochemical control. Its piperazine core and ethyl side chain make it valuable for constructing complex molecules with high enantioselectivity. Commonly employed in the preparation of bioactive compounds, including central nervous system agents and receptor modulators. The dihydrochloride salt form enhances solubility and stability, facilitating handling and storage in industrial processes.