2,2'',3,3'',4,5'',6,6''-OCTACHLOROBIPHENYL; 2,2'',5,5''-Tetrachloro-1,1''-biphenyl; 1,1''-Biphenyl,2,2'',5,5''-tetrachloro; 2,2'',5,5''-TETRACHLOROBIPHENYL; 2,5,2'',5''-Tetrachlorobiphenyl; 2,2'',5,5''-TCB; 2,3'',5,6''-Tetrachlorobiphenyl; 1,4-dichloro-2-(2,5-dichlorophenyl)benzene; 2,2'',5,5''-PCB; TCBP; PCB 52; 2,2'',5,5''-tetrachlorbiphenyl

2,2'',3,3'',4,5'',6,6''-OCTACHLOROBIPHENYL; 2,2'',5,5''-Tetrachloro-1,1''-biphenyl; 1,1''-Biphenyl,2,2'',5,5''-tetrachloro; 2,2'',5,5''-TETRACHLOROBIPHENYL; 2,5,2'',5''-Tetrachlorobiphenyl; 2,2'',5,5''-TCB; 2,3'',5,6''-Tetrachlorobiphenyl; 1,4-dichloro-2-(2,5-dichlorophenyl)benzene; 2,2'',5,5''-PCB; TCBP; PCB 52; 2,2'',5,5''-tetrachlorbiphenyl

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