You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 2-(azepan-1-yl)-4-[4-[2-(3-oxopiperazin-1-yl)ethoxy]anilino]-2,3,4,4a,6,7,8,8a-octahydro-1H-pyrimido[4,5-d]pyridazin-5-one by IUPAC nomenclature, provide its molecular formula.
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C24H38N8O3
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