112446-50-1 4-(1-(5-Chloro-2-((4-chlorophenyl)thio)phenyl)ethyl)-1-methylpiperazine bismaleate Piperazine, 4-(1-(5-chloro-2-((4-chlorophenyl)thio)phenyl)ethyl)-1-methyl-, (Z)-2-butenedioate (1:2)