Used as a reactive flame retardant in polymer formulations, particularly in thermosetting resins like epoxies and unsaturated polyesters. It participates in the polymerization process, becoming chemically bonded into the final material, which enhances flame resistance without leaching. Commonly applied in electronic encapsulants, circuit boards, and flame-retardant coatings where thermal stability and durability are critical. Its brominated structure provides high efficiency in suppressing ignition and slowing flame spread, meeting stringent fire safety standards in electronics and construction materials.