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Under IUPAC nomenclature, a molecule named 4-[2-(4-bromo-3-methylanilino)-6-methoxy-1-methylbenzimidazol-5-yl]oxy-N-(2-piperazin-1-ylethyl)pyridine-2-carboxamide is given. What is its corresponding molecular formula?
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C28H32BrN7O3
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