52205-65-9 CARBANILIC ACID, N-ETHYL-m-PROPOXY-, 1-METHYL-2-PIPERIDINOETHYL ESTER, MONOHYDRO Carbanilic acid, N-ethyl-m-propoxy-, 1-methyl-2-piperidinoethyl ester, monohydrochloride N-Ethyl-m-propoxycarbanilic acid 1-methyl-2-piperidinoethyl ester monohydrochloride