2,2',3,4,4',5'-Hexachloro-1,1'-biphenyl;2,2',3,4,4',5'-Hexachlorobiphenyl; 2,2',3',4,4',5-Hexachlorobiphenyl; 2,3,4,2',4',5'-Hexachlorobiphenyl;2,4,5,2',3',4'-Hexachlorobiphenyl; CB 138; K 138; PCB 138
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