You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule (5Z)-2-(2-chloropyridin-3-yl)imino-5-[(2,4-dimethoxyphenyl)methylidene]-3-prop-2-enyl-1,3-thiazolidin-4-one into molecular formula.
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C20H18ClN3O3S
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