681481-91-4

4,4'-Dibromo-1,1'-spirobiindane-7,7'-diol &gt 4,4'-Dibromo-7,7'-dihydroxy-1,1'-spirobiindane 7,7'-Dibromo-3,3'-spirobi[1,2-dihydroindene]-4,4'-diol 4,4'-Dibromo-2,2',3,3'-tetrahydro-1,1'-spirobi[indene]-7,7'-diol 4,4'-Dibromo-2,2',3,3'-tetrahydro-1,1'-spirobi[1H-indene]-7,7'-diol 1,1'-Spirobi[1H-indene]-7,7'-diol, 4,4'-dibromo-2,2',3,3'-tetrahydro-