Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of active pharmaceutical ingredients (APIs) with central nervous system activity. Its structure supports the creation of molecules with potential antipsychotic, antidepressant, or antihistaminic properties. The chloroethyl group allows for further alkylation or ring-forming reactions, making it valuable in medicinal chemistry for building complex heterocyclic systems. Commonly employed in research settings for designing novel piperazine-based derivatives with tailored biological activity.