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 2-fluoro-N-[6-(hydroxyamino)-6-oxohexyl]-5-[(4-oxo-3H-phthalazin-1-yl)methyl]benzamide is given. What is its corresponding molecular formula?
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C22H23FN4O4
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