150304-11-3 2,2',3',5',6'-Pentachloro-4-biphenylol 4-Hydroxy-2,2',3',5',6'-pentachlorobiphenyl [1,1'-Biphenyl]-4-ol, 2,2',3',5',6'-pentachloro- (9CI) [1,1'-biphenyl]-4-ol, 2,2',3',5',6'-pentachloro-