Synonyms: 2-PENTAFLUOROPHENYL-6,10B-DIHYDRO-4H,5AH-5-OXO-3,10C-DIAZA-2-AZONIACYCLOPENTA[C]FLUORINE TETRAFLUOROBORATE;5A(R),10B(S)-5A,10B-DIHYDRO-2-(PENTAFLUOROPHENYL)-4H,6H-INDENO[2,1-B][1,2,4]TRIAZOLO[4,3-D][1,4]OXAZINIUM TETRAFLUOROBORATE;(5AR,10BS)-(+)-5A,10B-DIHYDRO-2-(PENTAFLUOROPHENYL)-4H,6H-INDENO[2,1-B][1,2,4]TRIZOLO[4,3-D][1,4]OXAZINIUM TETRAFLUOROBORATE;5A(R),10B(S)-5A,10B-DIHYDRO-2-(PENTAFLU&;(5aR,10bS)-(+)-5a,10b-Dihydro-2-(pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]trizolo[4,3-d][1,4]oxaziniumtetrafluoroborate,min.98%;2-pentafluorophenyl-6,10b-dihydro-4h,5ah-5-oxo-3,10c-diaza-2-azoniacyclopenta[c]fluorine tetrafluoroborate;5a(r),10b(s)-5a,10b-dihydro-2-(pentafluorophenyl)-4h,6h-indeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]oxazinium tetrafluoroborate;5A(R),10B(S)-5A,10B-DIHYDRO-2-(PENTAFLUOROPHENYL)-4H,6H-INDENO(2,1-B)(1,2,4)TRIA