1-(4-Acetylphenyl)piperazine51639-48-6100 % similar 1-[4-(4-Methyl-1-piperazinyl)phenyl]ethanone26586-55-066 % similar 4′-Morpholinoacetophenone39910-98-066 % similar 1-[4-(Dimethylamino)phenyl]ethanone2124-31-453 % similar 1-(4-Methylphenyl)piperazine39593-08-353 % similar 1-(4-Chlorophenyl)piperazine38212-33-850 % similar 1-(4-Methoxyphenyl)piperazine38212-30-549 % similar 1-(4-Fluorophenyl)piperazine2252-63-349 % similar 1-(4-Hydroxyphenyl)piperazine56621-48-849 % similar Phenylpiperazine92-54-648 % similar N-(4-Acetylphenyl)maleimide1082-85-547 % similar P-Chloroacetophenone99-91-247 % similar 1-(4-Chlorophenyl)piperazine hydrochloride13078-12-146 % similar N-(4-Chlorophenyl)piperazine dihydrochloride38869-46-446 % similar N-(4-Methoxyphenyl)piperazine dihydrochloride38869-47-545 % similar 1-(4-Nitrophenyl)piperazine6269-89-245 % similar 1-(4-Methoxyphenyl)piperazine hydrochloride84145-43-745 % similar 1-[4-(Trifluoromethyl)phenyl]piperazine30459-17-745 % similar 1-(4-Bromophenyl)piperazine monohydrochloride68104-62-145 % similar 4-(1-Piperazinyl)benzonitrile68104-63-245 % similar