Tetra Bromo Phthalic Anhydride (TBPA) Manufacturer & Supplier in India Product Tetra Bromo Phthalic Anhydride CAS # 632-79-1 Empirical Formula C8Br4O3 Purity 98 % To 99 % Appearance Pale Yellow Crystalline Solid M.W. 463.6 Melting point 280-281 °C