4-(DIMETHYLAMINO)-2',5'-DIMETHYL-4'-NITROAZOBENZENE

4-(DIMETHYLAMINO)-4'-NITRO-2-(TRIPHENYLSTANNYL)AZOBENZENE

4-(DIMETHYLAMINO)BENZALDEHYDE [4-(DIMETHYLAMINO)BENZYLIDENE]HYDRAZONE

4-(METHYLTHIO)PHENYL N-(3-CHLOROPHENYL)CARBAMATE

4-(N-(3-NITROPHENYL)CARBAMOYL)MORPHOLINE

4-(N-(4-METHYL-3-NITROPHENYL)CARBAMOYL)MORPHOLINE

4-ACETAMIDOPHENYL N-(2-FLUOROPHENYL)CARBAMATE

4-ACETAMIDOPHENYL N-ISOPROPYLCARBAMATE

4-BENZOYL-2-NITROPHENYL DISULFIDE

4-BENZYLIDENE-2-METHYL-4H-OXAZOL-5-ONE

4-Benzyloxy-3-methoxycinnamic acid

4-BIPHENYLYL 2-METHOXY-5-NITROBENZYL ETHER

4-BROMO-1,2,3,4-TETRACHLORO-1,3-BUTADIENE-1-CARBOXANILIDE

4-BROMO-2,5-DIMETHYLPHENYL N-(2-METHYL-5-NITROPHENYL)CARBAMATE

4-BROMO-3-METHYLBIPHENYL