(2,4-Cyclohexadien-1,4-diylidenebis(nitrilooxyethylene))bis(trimethylammonium) diiodide 10238-07-0 Ammonium, (2,4-cyclohexadien-1,4-diylidenebis(nitrilooxyethylene))bis(trimethyl-, diiodide L.M. 2005