Pyridinylpiperazine34803-66-2100 % similar 1-(2-Pyridyl)piperazine monohydrochloride129394-11-289 % similar Pyrimidinylpiperazine20980-22-757 % similar 2-(1-Piperazinyl)pyrazine34803-68-456 % similar 1-(4-Methyl-2-pyridinyl)piperazine34803-67-354 % similar 2-(1-Piperazinyl)pyrimidine dihydrochloride94021-22-452 % similar Quipazine4774-24-750 % similar Phenylpiperazine92-54-650 % similar 1-(5-Trifluoromethyl-pyridin-2-yl)-piperazine132834-58-347 % similar 1-[3-(Trifluoromethyl)-2-pyridinyl]piperazine87394-63-646 % similar 1-Phenylpiperazine hydrochloride2210-93-745 % similar 2-(Dimethylamino)pyridine5683-33-045 % similar 4-(5-Nitropyridin-2-yl)piperazine82205-58-144 % similar 2-[N-Methyl-N-(2-pyridyl)amino]ethanol122321-04-443 % similar Tripelennamine hydrochloride154-69-843 % similar 1-(2-Chlorophenyl)piperazine39512-50-043 % similar 1-(2-Methylphenyl)piperazine39512-51-143 % similar 1-(2-Thiazolyl)piperazine42270-37-143 % similar 1-(1-Naphthyl)piperazine57536-86-442 % similar 3-(1-Piperazinyl)-1,2-benzisothiazole87691-87-041 % similar