1,1'-Oxybisbenzene hexachloro deriv. 31242-93-0 55720-99-5 Benzene, 1,1'-oxybis-, hexachloro deriv. (9CI) Chlorinated diphenyl oxide ETHER, TRICHLOROPHENYL Ether, hexachlorophenyl Hexachloro diphenyl oxide Hexachlorodiphenyl ether Hexachlorodiphenyl oxide Hexachlorodiphenyloxide Phenyl ether, hexachloro deriv. (8CI) Trichloro diphenyl ether Trichloro diphenyl oxide o-Chlorinated diphenyl oxide