You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 2-(6-chloro-7-methylthieno[3,2-d]pyrimidin-4-yl)sulfanyl-N-(2-methoxyethyl)acetamide by IUPAC nomenclature, provide its molecular formula.
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C12H14ClN3O2S2
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