Used as a chiral building block in the synthesis of pharmaceutical intermediates, particularly in the development of active pharmaceutical ingredients (APIs) requiring stereochemical control. Its piperazine core and ethyl group contribute to enhanced solubility and binding affinity in drug molecules. Commonly employed in the production of central nervous system (CNS) agents, antimicrobials, and kinase inhibitors. The dihydrochloride salt form improves stability and crystallinity, facilitating handling and purification during manufacturing processes.