(2,2'-((1,1'-Biphenyl)-4,4'-diylbis(ethylenephenyleneoxy))diethyl)bis(diethylmethylammonium) dimethyl bis(sulphate) 72796-88-4 EINECS 276-840-9 Ethanaminium, 2,2'-((1,1'-biphenyl)-4,4'-diylbis(2,1-ethenediyl-2,1-phenyleneoxy))bis(N,N-diethyl-N-methyl-, bis(methyl sulfate)