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What is the molecular formula of the compound with this IUPAC name 4'-methyl-4-(trifluoromethyl)spiro[3,5,6,10-tetraza-8-azoniatricyclo[6.4.0.02,6]dodeca-1(8),2,4,9,11-pentaene-7,7'-5,6-diaza-8-azoniatricyclo[6.4.0.02,6]dodeca-1(12),2,4,8,10-pentaene] ?
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C17H11F3N8+2
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