2,2',6,6'-Tetrabromobisphenol A diacrylate 2-Propenoic acid, (1-methylethylidene)bis(2,6-dibromo-4,1-phenylene) ester 4,4'-Isopropylidenebis(2,6-dibromophenyl acrylate) 55205-38-4 73935-84-9 RDX 51027 Tetrabromobisphenol A diacrylate