You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-[[1-[6-[6-(difluoromethyl)imidazo[1,2-b]pyridazin-3-yl]pyrimidin-4-yl]-4-fluoro-3,6-dimethyl-3,6-dihydro-2H-pyridin-5-yl]methyl]methanesulfinamide into its molecular formula.
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C20H22F3N7OS
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