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. Its structure allows for the incorporation into more complex molecules, where the cyano group and piperazine ring contribute to binding affinity and selectivity in drug-receptor interactions. Commonly employed in research settings for constructing kinase inhibitors and receptor antagonists. Also utilized in medicinal chemistry for structure-activity relationship (SAR) studies due to its modifiable functional groups.