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1-(4-Fluorophenyl)piperazine2252-63-339 % similar 1-(p-Tolyl)piperazine39593-08-339 % similar p-(1-Piperazinyl)phenol56621-48-839 % similar 1-(4-Bromophenyl)piperazine66698-28-039 % similar 1-(4-Nitrobenzoyl)piperazine72141-41-439 % similar Phenylpiperazine92-54-638 % similar 1-Biphenyl-4-yl-piperazine180698-19-538 % similar HC Blue 233229-34-438 % similar 1-(4-Chlorophenyl)piperazine hydrochloride13078-12-137 % similar N-(4-Chlorophenyl)piperazine dihydrochloride38869-46-437 % similar 1-(3,4-Dichlorophenyl)piperazine57260-67-037 % similar 1-(4-Acetylphenyl)piperazine51639-48-637 % similar 2-Morpholino-5-nitropyridine26820-62-237 % similar 1-(4-Methoxyphenyl)-4-(4-nitrophenyl)piperazine74852-61-237 % similar 1-(3,4-Dimethylphenyl)piperazine1014-05-736 % similar 1-(4-(Trifluoromethyl)phenyl)piperazine30459-17-736 % similar 1-(4-Methoxyphenyl)piperazine38212-30-536 % similar 1-(4-Fluorophenyl)piperazine dihydrochloride64090-19-336 % similar 1-(4-Bromophenyl)piperazine monohydrochloride68104-62-136 % similar 4-(1-Piperazinyl)benzonitrile68104-63-236 % similar