4,5-DIMETHOXY-1,2-PHENYLENEDIAMINE DIHYDROCHLORIDE

4,5-Dimethyl-2-(2-(methylthio)ethyl)-1,3-dithiolane

4,5-DIMETHYL-2-FURALDEHYDE

4,5-Dimethyl-3-hydroxy-2,5-dihydrofuran-2-one

4,5-DINITRO-9-OXO-9H-FLUORENE-2,7-DISULFONYL DICHLORIDE

4,5-DIPHENYL-2-MERCAPTOOXAZOLE

4,5-ETHYLENEDITHIO-1,3-DITHIOLE-2-THIONE

4,5-ETHYLENEDITHIO-1,3-DITHIOLE-2-THIONE

4,6-DIAMINO-2-MERCAPTOPYRIMIDINE

4,6-DIAMINO-2-METHYLMERCAPTOPYRIMIDINE

4,6-DICHLORO-2H-BENZOPYRAN-3-CARBOXALDEHYDE