You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named N-[2-[2-(2-amino-4-methyl-5-oxo-7,8-dihydro-6H-quinazolin-7-yl)phenyl]phenyl]acetamide by IUPAC nomenclature, provide its molecular formula.
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C23H22N4O2
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