4,4'-DICHLORO-(9,9')BIANTHRACENYL

4,4'-DIHYDROXY-1,1'-DIMETHYL-4,4'-ETHYLENEDIPIPERIDINE

4,4'-DIMETHYL-2,2'-DIHYDROXY-6,6'-BIQUINOLINE

4,4'-DINITROSTILBENE

4,4'-METHYLENEBIS(N-(3,4-(METHYLENEDIOXY)BENZYLIDENE)ANILINE)

4,4'-METHYLENEBIS(N-CINNAMYLIDENEANILINE)

4,4'-SULFONYLBIS(N-(4-ACETAMIDOBENZYLIDENE)ANILINE)

4,4'-Vinylidenebis(N,N-dimethylaniline)

4,4-DICHLORO-2,3-BIS(TRIMETHYLSILYL)-2-CYCLOBUTEN-1-ONE

4B,9B-DIHYDRO-INDENO(2,1-A)INDENE-5,10-DIONE

4,5-Dichloro-2-[2-(4-chlorophenoxy)ethyl]pyridazin-3(2H)-one

4,5-DICHLORO-N-METHYL-2-NITROANILINE

4,5-DIHYDRO-1H-BENZO(G)INDAZOLE-3-CARBOXYLIC ACID (4-NITRO-BENZYLIDENE)HYDRAZIDE

4,5-DIHYDRONAPHTHO[1,2-C]FURAN-1,3-DIONE

4,5-DIMETHYL-2-(3,4-DIHYDRO-2,4,4,6,7-PENTAMETHYL-2H-1-BENZOPYRAN-2-YL)PHENOL