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 5-(6-bromobenzimidazol-1-yl)-3-[[2-(trifluoromethyl)phenyl]methoxy]-2,3-dihydrothiophene-2-carboxylic acid is given. What is its corresponding molecular formula?
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C20H14BrF3N2O3S
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