1-Piperazinylpyrazine34803-68-4100 % similar Pyridinylpiperazine34803-66-256 % similar 1-(2-Pyridyl)piperazine monohydrochloride129394-11-251 % similar 1-(4-Methyl-2-pyridinyl)piperazine34803-67-350 % similar 1-(4-Pyridyl)piperazine1008-91-947 % similar Pyrimidinylpiperazine20980-22-747 % similar 6-Piperazinonicotinonitrile149554-29-045 % 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 1-[(Pyridin-3-yl)methyl]piperazine39244-80-939 % similar 2-(Piperazin-1-yl)-4-(trifluoromethyl)pyrimidine179756-91-339 % similar Quipazine4774-24-738 % similar 1-(5-Nitro-2-pyridyl)-1,4-diazepane287114-27-637 % similar 2-Piperazinonicotinonitrile84951-44-037 % similar Phenylpiperazine92-54-636 % similar 1-((Pyridin-4-yl)methyl)piperazine62089-74-136 % similar 1-[3-(Trifluoromethyl)-2-pyridinyl]piperazine87394-63-636 % similar