2,2',4,4',6,6'-hexaiodobiphenyl-3,3'-diol InChI=1/C12H4I6O2/c13-3-1-5(15)11(19)9(17)7(3)8-4(14)2-6(16)12(20)10(8)18/h1-2,19-20 [1,1'-biphenyl]-3,3'-diol, 2,2',4,4',6,6'-hexaiodo-