1-Piperidinecarboxylic acid, 2-(trimethylammonio)ethyl ester, iodide 64046-21-5 AMMONIUM, (2-HYDROXYETHYL)TRIMETHYL-, IODIDE, 1-PIPERIDINECARBOXYLATE Ammonium, (2-(piperidinocarbonyloxy)ethyl)trimethyl-, iodide Carbamic acid, N,N-pentamethylene-, 2-dimethylaminoethyl ester, methiodide