T 6330 (OTTO) 3,3′,5,5′-Tetrabromobisphenol A, 97% Cas 79-94-7 - used as a reactive component of polymers, meaning that it is incorporated into the polymer backbone. T 6330 (OTTO) 3,3′,5,5′-Tetrabromobisphenol A, 97% Cas 79-94-7 - used to prepare fire-resistant polycarbonates by replacing some bisphenol A. T 6330 (OTTO) 3,3′,5,5′-Tetrabromobisphenol A, 97% Cas 79-94-7 - used to prepare epoxy resins, used in printed circuit boards.