2,2'-(1,4-Phenylenebis(1-oxo-3,1-propanediyl)oxy)bis(N,N,N-trimethylethanaminium) diiodide 37683-44-6 Ethanaminium, 2,2'-(1,4-phenylenebis((1-oxo-3,1-propanediyl)oxy))bis(N,N,N-trimethyl-, diiodide PK-154