You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-[6-[2-acetamido-2-(4-methylphenyl)acetyl]imidazo[1,2-b]pyridazin-2-yl]-2-fluoropyridine-4-carboxamide into its molecular formula.
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C23H19FN6O3
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