153804-27-4 8-((4-Bis(4-fluorophenyl)methylpiperazin-1-yl)butyl)oxythiochroman oxalate Piperazine, 1-(bis(4-fluorophenyl)methyl)-4-(4-((3,4-dihydro-2H-1-benzothiopyran-8-yl)oxy)butyl)-, ethanedioate (1:1)