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

4,4'-Dichlorobenzhydrol

4,4'-Dichlorobenzophenone

BIS(4-FLUOROPHENYL) ETHER

4,4'-DIHEPTYLAZOXYBENZENE

4,4'-DIHYDROXYDIPHENYLMETHANE

4,4'-DIISOCYANATO-3,3',5,5'-TETRAETHYLDIPHENYLMETHANE

4,4'-Dimethyl-(3,3'-bithiophene)-2,2'-dicarboxaldehyde