149589-55-9 2',3,3',4',5-Pentachloro-4-biphenylol 4-Hydroxy-2',3,3',4',5-pentachlorobiphenyl 4-Hydroxy-3,5,2',3',4'-pentachlorobiphenyl [1,1'-Biphenyl]-4-ol, 2',3,3',4',5-pentachloro- (9CI) [1,1'-biphenyl]-4-ol, 2',3,3',4',5-pentachloro-