100 MHz Example Spectra 19F – 100 MHz 2,2-difluoroethyl-p-toluenesulfonate 4,4'-difluorobenzophenone Octafluorotoluene 4-fluoroacetophenone Diflunisal Flurbiprofen 2-chloro-4-fluorotoluene Fipronil Fluoxetine hydrochloride