79855-94-0 9-Octadecenoic acid (Z)-, 1,2-ethanediylbis((methylimino)(1-methyl-2,1-ethanediyl)) ester, bis(methyl sulfate) EINECS 279-325-7 N,N'-Tetramethylenebis(1-methyl-2-(oleoyloxy)ethylammonium) dimethyl bis(sulphate)