1,2-DIBROMO-3,5-DIFLUOROBENZENE

1,2-Dibromotetrafluorobenzene

1,2-DICHLORO-1-FLUOROETHYLENE

1,2-DICHLOROHEXAFLUOROCYCLOPENTENE

N-Ethoxycarbonyl-2-ethoxy-1,2-dihydroquinoline

N-Ethoxycarbonyl-2-ethoxy-1,2-dihydroquinoline

1,2-Dihydro-2-oxo-4-pyridinecarboxamide