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-(4-fluorophenyl)pyridazin-3-yl]azetidin-3-yl]-N,1,2-trimethylimidazole-4-sulfonamide into its molecular formula.
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C19H21FN6O2S
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