You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-[5-amino-3-(furan-2-yl)-6-oxopyridazin-1-yl]-N-[4-(azepan-1-yl)phenyl]acetamide by IUPAC nomenclature, provide its molecular formula.
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C22H25N5O3
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