4-[4,5,6,7-tetrabromo-3-(4-hydroxyphenyl)-1,1-dioxo-2,1λ6-benzoxathiol-3-yl]phenol;4,5,6,7-Tetrabromo-3,3-bis(4-hydroxyphenyl)-3H-benzo[c][1,2]oxathiole 1,1-dioxide;
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