1,4-DIBENZYLOXY-2-NITROBENZENE

1,4-DIBROMO-2,3-BIS(BROMOMETHYL)-2-BUTENE

DL-1,4-DICHLORO-2,3-BUTANEDIOL

1,4-DICHLORO-5,6,7,8-TETRAHYDRO-5,8-ETHANOPHTHALAZINE

1,4-DIMETHOXYOCTAHYDROQUINOXALINE-2,3-DIONE

1,4-DITHIINO[2,3-B]-1,4-DITHIIN,97

1,4-PHENYLENE DIISOTHIOCYANATE