• Pentafluoropyridine
  • 2,3,5,6-tetrachloro-4-methylsulfonylpyridine
  • 6-chloropyridine-2-carbonitrile
  • 3,6-Difluoropyridine-2-carboxylic acid
  • 2,2'-bipyridine
  • ?2-Chloro-4'-fluoroacetophenone
  • ?2-Chloro-2',4'-difluoroacetophenone
  • 2-FLUORO-3-NITROBENZOIC ACID