You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 5-(6,7-dihydro-4H-thieno[3,2-c]thiopyran-2-carbonyl)-1,3-dimethylpyrimidine-2,4-dione is given. What is its corresponding molecular formula?
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C14H14N2O3S2
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