You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-fluoro-N-[3-(2-methoxyethyl)-4-methyl-5-propan-2-yl-1,3-thiazol-2-ylidene]-3-(trifluoromethyl)benzamide into its molecular formula.
user
C18H20F4N2O2S
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