1,3-Isobenzofurandione, 4,5,6,7-tetrabromo- 3,4,5,6-TETRABROMOPHTHALIC ANHYDRIDE 5-17-11-00265 (Beilstein Handbook Reference) 632-79-1 72625-95-7 BRN 0018908 Bromophthal Bromphthal CCRIS 6201 Dion 6692 (VAN) EINECS 211-185-4 FG 400 FG 4000 FireMaster PHT 4 HSDB 5438 NSC 4874 PHT 4 Phthalic acid, tetrabromo-, anhydride Phthalic anhydride, tetrabromo- Saytex RB 49 Tetrabromophthalic acid anhydride Tetrabromophthalic anhydride