28003-33-0 AMMONIUM, (4,4'-BIPHENYLYLENEBIS(2-OXOETHYLENE))BIS(((2-CYANO-2-HYDROXYCYCLOHEXY Ammonium, (4,4'-biphenylylenebis(2-oxoethylene))bis(((2-cyano-2-hydroxycyclohexyl)methyl)dimethyl-, dibromide, diacetate (ester)