28906-13-0 4,4'-(1-Methylethylidene)bisphenol, tetrabromo deriv, polymer withcarbonic dichloride 51253-32-8 Carbonic dichloride, polymer with 4,4'-(1-methylethylidene)bis(2,6-dibromophenol) Tetrabromobisphenol A, phosgene, polymer