3',3'',5',5''-Tetrabromophenol-4,5,6,7-tetrabromosulfonephthalein 4,4'-(4,5,6,7-Tetrabromo-3H-2,1-benzoxathiol-3-ylidene)bis(2,6-dibromophenol) S,S-dioxide 4430-25-5 5415-34-9 61053-98-3 68460-00-4 Benzenesulfonic acid, 2-(bis(3,5-dibromo-4-hydroxyphenyl)hydroxymethyl)-3,4,5,6-tetrabromo- (9CI) CCRIS 5488 EINECS 224-622-9 NSC 11236 Phenol, 4,4'-(4,5,6,7-tetrabromo-1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis(2,6-dibromo- Tetrabromophenol blue Tetrabromphenol tetrabromsulfonphthalein