1,1'-(Ethylenebis(oxyethylene))bis(1-ethylpiperidinium iodide) 111562-23-3 505 HC Diiodoethylate de N,N'bis(piperidylethoxy)ethylene [French] Piperidinium, 1,1'-(ethylenebis(oxyethylene))bis(1-ethyl-, diiodide