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Under IUPAC nomenclature, a molecule named (2Z)-3-butyl-2-[(E)-3-(3-butyl-1,1-dimethylbenzo[e]indol-3-ium-2-yl)prop-2-enylidene]-1,1-dimethylbenzo[e]indole;2-[(E,3E)-3-(3-butyl-1,1-dimethylbenzo[e]indol-2-ylidene)prop-1-enyl]-1,1,3-trimethylbenzo[e]indol-3-ium;1,1,3-trimethyl-2-[3-(1,1,3-trimethylbenzo[e]indol-3-ium-2-yl)prop-2-enylidene]benzo[e]indole;1,1,3-trimethyl-2-[3-(1,3,3-trimethylindol-2-ylidene)prop-1-enyl]benzo[e]indol-3-ium is given. What is its corresponding molecular formula?
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C137H148N8+4
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