1,2,3,4,6,7,8-HEPTACHLORODIBENZOFURAN;67562-39-4;67652-39-5;38998-75-3;Dibenzofuran, heptachloro-;HEPTACHLORODIBENZOFURAN;1,2,3,4,6,7,8-HEPTACHLORODIBENZOFURAN;1,2,3,4,6,7,8-Hepta polychlorinated dibenzofuran;1,2,3,4,6,7,8-Heptachlorodibenzofuran [Dioxin and Dioxin-Like compounds];Dibenzofuran, 1,2,3,4,6,7,8-heptachloro-;F 131;1,2,3,4,6,7,8-Heptachlorodibenzo[b,d]furan
1,2,3,4,6,7,8-HEPTACHLORODIBENZOFURAN