You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-[5-(3,4-dimethoxyphenyl)-1,3,4-thiadiazol-2-yl]-3-fluoro-N-(2-methoxyethyl)benzamide into its molecular formula.
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C20H20FN3O4S
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