You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name 5-[4-[2-(dimethylamino)ethoxy]phenyl]-N-(4-methoxy-1,3-benzothiazol-2-yl)-1,3,4-oxadiazol-2-amine into its molecular formula.
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C20H21N5O3S
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