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system
Name the molecular formula for the molecule established as methyl 2-[3-[[2-butyl-3-[[4-(2-trityltetrazol-5-yl)phenyl]methyl]imidazol-4-yl]methylidene]-2-oxoindol-1-yl]acetate using the IUPAC nomenclature.
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C46H41N7O3
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