1,2-DIHYDRO-5-(3-PYRIDINYL)-3H-1,2,4-TRIAZOLE-3-THIONE

1,2-DIIODOTETRAFLUOROETHANE

1,2-DIMETHYL-1,1,2,2-TETRAPHENYLDISILANE

1,2-DIMETHYL-1H-IMIDAZOLE-4-SULFONYL CHLORIDE

1,2-EPOXY-3-METHYLBUTANE