4,4'-DIBROMOOCTAFLUOROBIPHENYL

2,2'-Biquinoline-4,4-dicarboxylic acid disodium salt

4,4'-Dichlorobenzophenone

4,4'-DICHLOROBUTYROPHENONE

4,4'-Dichlorodiphenyldisulfimide

Bis(4-fluorophenyl)-methanone

4,4'-Diisothiocyanatodihydrostilbene-2,2'-disulfonicaciddisodiumsalt

4,4'-Dimethoxybenzophenone

4,4-Dimethyl-1-phenyl-3-pyrazolidone