2-Chlorobiphenyl
2,3-Dichlorobiphenyl
2,2′,3,3′,4,4′,6-Heptachlorobiphenyl
2,2′,4,4′,5,6′-Hexachlorobiphenyl
2,2′,3,3′,4,5′,6,6′-Octachlorobiphenyl
2,2′,3′,4,6-Pentachlorobiphenyl
2,2′,4,4′-Tetrachlorobiphenyl
2,4′,5-Trichlorobiphenyl