You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-[1-(4-fluorophenyl)-7-oxo-4-propan-2-ylpyrazolo[3,4-d]pyridazin-6-yl]-N-(4-nitrophenyl)acetamide into its molecular formula.
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C22H19FN6O4
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