3,3'-Dichloro-5,5'-bis[2-(2,4-dichloro-3-hydroxy-phenyl)-ethyl]-biphenyl-2,2'-diol 3,3'-dichloro-5,5'-bis[2-(2,4-dichloro-3-hydroxyphenyl)ethyl]biphenyl-2,2'-diol 6,6',10,10',12,12'-Hexachloroisoperrottetin A InChI=1/C28H20Cl6O4/c29-19-7-5-15(23(33)27(19)37)3-1-13-9-17(25(35)21(31)11-13)18-10-14(12-22(32)26(18)36)2-4-16-6-8-20(30)28(38)24(16)34/h5-12,35-38H,1-4H [1,1'-biphenyl]-2,2'-diol, 3,3'-dichloro-5,5'-bis[2-(2,4-dichloro-3-hydroxyphenyl)ethyl]-