1-Piperazinebutanoic acid, 4-(2-((4-fluorophenyl)phenylmethoxy)ethyl)-, (Z)-2-butenedioate 1-Piperazinebutyric acid, 4-(2-((p-fluorophenyl)phenylmethoxy)ethyl)-, dimaleate 4-(2-((p-Fluorophenyl)phenylmethoxy)ethyl)-1-piperazinebutyric acid dimaleate 61897-19-6