You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named ethyl (3R)-4-[2-[2-(4-ethoxyphenyl)-1,3-thiazol-4-yl]acetyl]thiomorpholine-3-carboxylate by IUPAC nomenclature, provide its molecular formula.
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C20H24N2O4S2
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