4-Chlorophenylpiperazine (also known as 1-(4-Chlorophenyl)piperazine, Piperazine, 1-(4-chlorophenyl)-, 1-(para-Chlorophenyl)piperazine, 627-233-6, para-chlorophenylpiperazine, 1-(4-chlorophenyl)-piperazine, 1-(4-Chloro-phenyl)-piperazine, (4-chlorophenyl)piperazine, p-chlorophenylpiperazine or 4-chloro phenylpiperazine) is a substance of the phenylpiperazine class.
U.S. Food and Drug Administration; National Center for Advancing Translational Sciences. 4-Chlorophenylpiperazine. UNII: FMD47JE5C3. Global Substance Registration System. Accessed July 19, 2025. https://gsrs.ncats.nih.gov/ginas/app/beta/substances/FMD47JE5C3