You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 1-[[6-(4-ethylsulfonylphenoxy)-2-pyridin-2-yl-3H-benzimidazol-5-yl]methyl]pyrrole-2,5-dione into molecular formula.
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C25H20N4O5S
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