1-Piperidinebutanoic acid, 4-((4-chlorophenyl)-2-pyridinylmethoxy)-, ethyl ester, mono(4-methylbenzenesulfonate) 125602-70-2 Ethyl 4-(4-((4-chlorophenyl)-2-pyridylmethoxy)-1-piperidyl)butanoate p-toluenesulfonate