You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 3-[3-[(1,4-dimethylindol-3-yl)methyl]-2-oxobenzimidazol-1-yl]-4-methoxybenzoic acid is given. What is its corresponding molecular formula?
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C26H23N3O4
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