1-(2-Pyridyl)piperazine monohydrochloride129394-11-2100 % similar Pyridinylpiperazine34803-66-289 % similar 2-(1-Piperazinyl)pyrimidine dihydrochloride94021-22-461 % similar 1-Phenylpiperazine hydrochloride2210-93-755 % similar Pyrimidinylpiperazine20980-22-752 % similar 2-(1-Piperazinyl)pyrazine34803-68-451 % similar Tripelennamine hydrochloride154-69-850 % similar 1-(4-Methyl-2-pyridinyl)piperazine34803-67-350 % similar N-(2-Chlorophenyl)piperazine monohydrochloride41202-32-847 % similar Quipazine4774-24-746 % similar Phenylpiperazine92-54-645 % similar 3-(1-Piperazinyl)-1,2-benzisothiazole hydrochloride144010-02-645 % similar 3-Piperazin-1-yl-benzo[D]isothiazole hydrochloride87691-88-145 % similar Chloropyramine hydrochloride6170-42-945 % similar 1-(5-Trifluoromethyl-pyridin-2-yl)-piperazine132834-58-344 % similar 1-(2-Methoxyphenyl)piperazine hydrochloride5464-78-844 % similar 1-(3-Chlorophenyl)piperazine hydrochloride13078-15-444 % similar 1-(3-Chlorophenyl)piperazine dihydrochloride51639-49-744 % similar Betahistine dihydrochloride5579-84-044 % similar Piperazine, 1-(3-chlorophenyl)-, hydrochloride (1:?)65369-76-844 % similar