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What is the molecular formula of the compound with this IUPAC name 9-(4-tert-butyl-1-methylpyrimidin-1-ium-2-yl)-1-methylcarbazole;9-(1,4-dimethylpyrimidin-1-ium-2-yl)-1-methylcarbazole;1-methyl-9-(1-methylpyrimidin-1-ium-2-yl)carbazole;1-methyl-9-(1,4,5-trimethylpyrimidin-1-ium-2-yl)carbazole ?
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C79H78N12+4
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