You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 1-[4-[7-acetyl-4-(3-ethylmorpholin-4-yl)-6,8-dihydro-5H-pyrido[3,4-d]pyrimidin-2-yl]phenyl]-3-ethylurea by IUPAC nomenclature, provide its molecular formula.
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C24H32N6O3
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