Also Called: 1 , 2 , 3 , 4 , 7 , 8-HxCDF; 1 , 2 , 3 , 4 , 7 , 8-hexachlorodibenzofuran; 1,2,3,4,7,8-hexachlorodibenzofuran (HxDF);HEXACHLORINATED DIBENZOFURAN, 1,2,3,4,7,8-;1,2,3,4,7,8 Hexachlorodibenzofuran;1,2,3,4,7,8-Hexachlorodibenzofuran;1,2,3,4,7,8 Hexachlorodibenzo-p-furan (HxCDF);1,2,3,4,7,8-Hexachloro dibenzofuran;1,2,3,4,7,8-HxCDF