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Under IUPAC nomenclature, a molecule named ethyl 3-[2-(1-benzyl-2,5-dimethylpyrrol-3-yl)-2-oxoethyl]-5-methyl-4-oxothieno[2,3-d]pyrimidine-6-carboxylate is given. What is its corresponding molecular formula?
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C25H25N3O4S
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