4,5-DIHYDRO[1,2,5]OXADIAZOLO[3,4-F]CINNOLIN-3-IUM-3-OLATE

2,4-DIMETHYL-4-HYDROXYMETHYL-2-OXAZOLINE

4,5-Dihydro-3,5-diphenyl-1-(4-pyridinylcarbonyl)-(1H)pyrazole

4,5-DIHYDRO-4-OXOFURO[3,2-C]PYRIDINE

4,5-DIMETHYL-2-FURALDEHYDE

3,6-Dihydroxy-4,5-dimethylpyridazine

4,5-DIPHENYLIMIDAZOLIN-2-ONE

4',6-Diamidino-2-phenylindole dihydrochloride

4,6-DIAMINO-2-MERCAPTOPYRIMIDINE

4,6-DIAMINO-2-METHYLMERCAPTOPYRIMIDINE