Synonyms: 1,3,5-trichloro-2-(2,4,6-trichlorophenoxy)benzene;6973-37-1;Hexachlorodiphenyloxide;Ether, hexachlorophenyl;Hexachlorodiphenyl ether;Hexachlorodiphenyl oxide;Trichloro diphenyl ether;Trichloro diphenyl oxide;Hexachloro diphenyl oxide;AC1L1UDJ;Chlorinated diphenyl oxide;o-Chlorinated diphenyl oxide;ETHER, TRICHLOROPHENYL;Phenyl ether, hexachloro deriv.;NSC40569;1,1'-Oxybisbenzene hexachloro deriv;NSC-40569;LS-67891;Benzene, 1,1'-oxybis-, hexachloro deriv.