Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of active pharmaceutical ingredients (APIs) that target central nervous system disorders and psychiatric conditions. Its structure allows for easy functionalization, making it valuable in creating derivatives with potential antipsychotic or antidepressant activity. Commonly employed in medicinal chemistry for constructing complex molecules due to the presence of both aldehyde and piperazine functionalities, which enable diverse coupling and condensation reactions. Also utilized in the preparation of kinase inhibitors and other biologically active agents in research settings.