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For the molecule named 2-[(E,3E)-3-[5-bromo-3-[(2,4-dimethylphenyl)methyl]-1,3-dimethyl-6-nitroindol-2-ylidene]prop-1-enyl]-3-[[2-[(E,3E)-3-[5-bromo-3-[(2,4-dimethylphenyl)methyl]-1,3-dimethyl-6-nitroindol-2-ylidene]prop-1-enyl]-1,1-dimethylbenzo[e]indol-3-ium-3-yl]methoxymethyl]-1,1-dimethylbenzo[e]indol-3-ium by IUPAC nomenclature, provide its molecular formula.
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C74H72Br2N6O5+2
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