Phenylpiperazine92-54-676 % similar 1-Phenylpiperazine hydrochloride2210-93-768 % similar 1-(4-Chlorophenyl)piperazine38212-33-859 % similar 1-(4-Fluorophenyl)piperazine2252-63-357 % similar 1-(4-Methylphenyl)piperazine39593-08-357 % similar 1-(4-Hydroxyphenyl)piperazine56621-48-857 % similar 4-(1-Piperazinyl)benzonitrile68104-63-256 % similar 1-(4-Chlorophenyl)piperazine hydrochloride13078-12-153 % similar N-(4-Chlorophenyl)piperazine dihydrochloride38869-46-453 % similar 1-[4-(Trifluoromethyl)phenyl]piperazine30459-17-752 % similar 1-(4-Methoxyphenyl)piperazine38212-30-552 % similar 1-(4-Bromophenyl)piperazine monohydrochloride68104-62-152 % similar 1-(3-Methylphenyl)piperazine41186-03-250 % similar 1-(2-Chlorophenyl)piperazine39512-50-048 % similar 1-(3,4-Dichlorophenyl)piperazine57260-67-048 % similar 1-(3-Chlorophenyl)piperazine6640-24-048 % similar N-(4-Methoxyphenyl)piperazine dihydrochloride38869-47-547 % similar 1-(4-Acetylphenyl)piperazine51639-48-647 % similar 1-(4-Nitrophenyl)piperazine6269-89-247 % similar 1-(4-Methoxyphenyl)piperazine hydrochloride84145-43-747 % similar