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What is the molecular formula of the compound with this IUPAC name 4,4'-dibromo-1,1,1',1',6,6'-hexamethyl-3,3'-spirobi[2H-indene]-5,5'-diol;4,4'-dichloro-1,1,1',1'-tetramethyl-3,3'-spirobi[2H-indene];4,4'-difluoro-1,1,1',1'-tetramethyl-3,3'-spirobi[2H-indene];4,4'-diiodo-1,1,1',1',6,6'-hexamethyl-3,3'-spirobi[2H-indene]-5,5'-diol;4,4'-diiodo-1,1,1',1'-tetramethyl-3,3'-spirobi[2H-indene]-5,5'-diol ?
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C109H118Br2Cl2F2I4O6
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