4',4''(5'')-DI-TERT-BUTYLDIBENZO-18-CROWN-6

4,5-METHYLENEDIOXY-2-NITROACETOPHENONE

4,5,5-TRIFLUOROPENT-4-EN-1-OL

4,5-BIS(METHYLTHIO)-1,3-DITHIOL-2-ONE

4,5-BIS(METHYLTHIO)-1,3-DITHIOL-2-ONE

4,5-DICHLORO-2-[4-(TRIFLUOROMETHYL)PHENYL]PYRIDAZIN-3(2H)-ONE

2,3-DIMETHYLTHIAZOLINIUM IODIDE

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

4,5-Dihydro-6-methylpyridazin-3(2H)-one