135-12-6 4,4'-Dichlor-2-nitrodifenylether 4,4'-Dichloro-2-nitrodiphenyl ether 4-Chloro-2-nitrophenyl p-chlorophenyl ether Benzene, 4-chloro-1-(4-chlorophenoxy)-2-nitro- Ether, 4-chloro-2-nitrophenyl p-chlorophenyl Ether, 4-chlorophenyl(4'-chloro-2'-nitro)phenyl NSC12988 WLN: WNR CG FOR DG