You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 2-[2-(2-fluorophenyl)sulfanyl-4,5-dihydrothieno[2,3-b]pyrrol-6-yl]-N,N-dimethylethanamine into molecular formula.
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C16H19FN2S2
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