Sigma-Aldrich
1,3-BIS(2-CHLOROPHENYL)UREA
1,3-BIS(2,4,5-TRICHLOROPHENYL)UREA
1,3-BIS(4-BROMOPHENYL)-1H-PYRAZOL-5-YLAMINE
1,4-BIS[5-BROMO-2-(METHYLSULFANYL)BENZOYL]PIPERAZINE
1,4-BIS-(2-NAPHTHOXY)-TRANS-2-BUTENE
1,4-BIS-(O-TOLYLOXY)-TRANS-2-BUTENE
1,4-Bis(2-chlorobenzylaminomethyl)cyclohexane dihydrochloride
1,4-Bis(4-chloro-2-nitrophenyl)piperazine
1,4-BIS(4-NITROPHENYL)-1,3-BUTADIENE
1,4-BIS(OCTYLOXY)BENZENE
1,4-BIS(TRIPHENYLSILYL)-2,3-BUTANEDIOL
1,4-Di-O-acetyl-2,6-anhydro-5-deoxy-3-O-(2,3,4,6-tetra-O-acetylhexopyranosyl)hex-5-enitol
1,4-DIAMINO-5-NITROANTHRAQUINONE
1,4-Dibromo-2,3,5,6-tetramethylbenzene
1,4-Dichlorocyclohexane