(E)-1-(2-((3-(1H-Indol-3-yl)-1-oxo-2-propenyl)oxy)ethyl)-1-methylpiperidinium iodide 70882-56-3 Piperidinium, 1-(2-((3-(1H-indol-3-yl)-1-oxo-2-propenyl)oxy)ethyl)-1-methyl-, iodide, (E)- beta-Piperidinoethyl trans-beta-(3-indolyl)acrylate methiodide