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1-(4-Pyridyl)piperazine1008-91-9100 % similar 4-Pyrrolidinylpyridine2456-81-764 % similar Phenylpiperazine92-54-662 % similar 1-(4-Chlorophenyl)piperazine38212-33-857 % similar 1-Phenylpiperazine hydrochloride2210-93-755 % similar 1-(4-Fluorophenyl)piperazine2252-63-355 % similar 1-(p-Tolyl)piperazine39593-08-355 % similar p-(1-Piperazinyl)phenol56621-48-855 % similar 1-(4-Bromophenyl)piperazine66698-28-055 % similar 1-Biphenyl-4-yl-piperazine180698-19-553 % similar 1-((Pyridin-4-yl)methyl)piperazine62089-74-153 % similar 1-(4-Chlorophenyl)piperazine hydrochloride13078-12-152 % similar N-(4-Chlorophenyl)piperazine dihydrochloride38869-46-452 % similar 1-(4-(Trifluoromethyl)phenyl)piperazine30459-17-750 % similar 1-(4-Methoxyphenyl)piperazine38212-30-550 % similar 1-(4-Fluorophenyl)piperazine dihydrochloride64090-19-350 % similar 1-(4-Bromophenyl)piperazine monohydrochloride68104-62-150 % similar 4-(1-Piperazinyl)benzonitrile68104-63-250 % similar 1-(4-Ethoxyphenyl)piperazine46415-29-647 % similar 1-(3,5-Dichloro-4-pyridinyl)piperazine175277-80-247 % similar