You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-(4-fluorophenyl)-4-methyl-N-[2-oxo-2-[4-(1,2,4-triazol-1-yl)anilino]ethyl]-1,3-thiazole-5-carboxamide into its molecular formula.
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C21H17FN6O2S
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