Also Called: PCB-149;2,2',3,4',5',6-HEXACHLOROBIPHENYL (PCB-149);2 , 2' , 3 , 4' , 5' , 6-hexachlorobiphenyl;PCB 149;2,2',3,4',5',6'-Hexachlorobiphenyl;2,2',3,4',5',6-hexachlorobiphenyl;2,2’,3,4’,5’,6’-hexachlorobiphenyl;Polychlorinated biphenyls (PCBs);2,2',3,4',5',6-PCB;1,2,4-trichloro-3-(2,4,5-trichlorophenyl)benzene;2,2',3,4',5',6-Hexachlorobiphenyl (PCB 149)