2-(1-Piperazinyl)pyrazine34803-68-4100 % similar Pyridinylpiperazine34803-66-256 % similar 1-(2-Pyridyl)piperazine monohydrochloride129394-11-251 % similar 1-(4-Methyl-2-pyridinyl)piperazine34803-67-350 % similar Pyrimidinylpiperazine20980-22-747 % similar 1-(5-Trifluoromethyl-pyridin-2-yl)-piperazine132834-58-344 % similar 1-(3,5-Dichloro-4-pyridinyl)piperazine175277-80-243 % similar 1-(2-Thiazolyl)piperazine42270-37-143 % similar 2-(1-Piperazinyl)pyrimidine dihydrochloride94021-22-443 % similar 4-(5-Nitropyridin-2-yl)piperazine82205-58-140 % similar Quipazine4774-24-738 % similar Phenylpiperazine92-54-636 % similar 1-[3-(Trifluoromethyl)-2-pyridinyl]piperazine87394-63-636 % similar Propylpyrazine18138-03-934 % similar 1-(4-Chlorophenyl)piperazine38212-33-834 % similar 1-(3,5-Dichlorophenyl)piperazine55827-50-434 % similar 1-[3-Chloro-5-(trifluoromethyl)-2-pyridinyl]piperazine132834-59-433 % similar 1-Phenylpiperazine hydrochloride2210-93-733 % similar 1-(4-Fluorophenyl)piperazine2252-63-333 % similar 1-(4-Methylphenyl)piperazine39593-08-333 % similar