You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named N-(3-fluorophenyl)-2-[(4-oxo-5,6,7,8-tetrahydro-3H-[1]benzothiolo[2,3-d]pyrimidin-2-yl)sulfanyl]acetamide by IUPAC nomenclature, provide its molecular formula.
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C18H16FN3O2S2
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