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 N-(4-anilinophenyl)-2-(4-oxo-5-phenylthieno[2,3-d]pyrimidin-3-yl)acetamide is given. What is its corresponding molecular formula?
user
C26H20N4O2S
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