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2,6-Dichloro-1-fluoropyridinium triflate 4-NITROPHENYL TRIFLUOROMETHANESULFONATE 1-Fluoropyridinium triflate 1-FLUORO-2,4,6-TRIMETHYLPYRIDINIUM TRIFLATE TETRAETHYLAMMONIUM TRIFLUOROMETHANESULFONATE S-(TRIFLUOROMETHYL)-3,7-DINITRODIBENZOTHIOPHENIUM TRIFLUOROMETHANESULFONATE Imidazole trifluoromethanesulfonate salt