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 2-[1-(4-methoxybenzoyl)-3-oxo-2,4-dihydroquinoxalin-2-yl]-N-(4-methoxyphenyl)acetamide is given. What is its corresponding molecular formula?
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C25H23N3O5
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