You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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What is the molecular formula of the compound with this IUPAC name methyl 4-[(5E)-5-[(2-chloro-6-fluorophenyl)methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]benzoate ?
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C18H11ClFNO3S2
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