You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 2-(3,5-difluorophenyl)-4-[(1-methylcyclopropyl)methoxy]-5-[4-(1H-pyrazol-4-ylmethylsulfonyl)piperazin-1-yl]pyridazin-3-one into molecular formula.
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