52663-67-9

PCB 178 PCB NO 178 2,2',3,3',5,5',6-HEPTACHLOROBIPHENYL 2,2',3,3',5,5,6'-HEPTACHLOROBIPHENYL 2,2',3,3',5,5',6-Heptachloro-1,1'-biphenyl 1,1'-Biphenyl, 2,2',3,3',5,5',6-heptachloro- 1,2,4,5-tetrachloro-3-(2,3,5-trichlorophenyl)benzene 2,2',3,3',4,5',6'-Heptachlorobiphenyl (= 2,2',3,3',4',5,6-)