(Oxybis(p-phenylene)bis(2-oxoethylene))bis((2-hydroxyethyl)dimethylammonium bromide) 64049-57-6 AMMONIUM, (OXYBIS(p-PHENYLYLENE)BIS(2-OXOETHYLENE))BIS((2-HYDROXYETHYL)DIMETHYL- Ammonium, (oxybis(p-phenylylene)bis(2-oxoethylene))bis((2-hydroxyethyl)dimethyl-, dibromide