You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[4-(3-fluoropyridin-2-yl)phenyl]-N-methyl-N-(4-methyl-5-sulfamoyl-1,3-thiazol-2-yl)acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C18H17FN4O3S2
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