You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 4-[4-oxo-5-(quinolin-8-ylmethylidene)-2-sulfanylidene-1,3-thiazolidin-3-yl]butanoic acid by IUPAC nomenclature, provide its molecular formula.
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C17H14N2O3S2
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