(1,1'-Biphenyl)-2-ol, 2',3',4',5,5'-pentachloro- 2',3',4',5,5'-Pentachloro-(1,1'-biphenyl)-2-ol 2',3',4',5,5'-Pentachloro-2-biphenylol 2-Hydroxy-2',3',4',5,5'-pentachlorobiphenyl 67651-36-9