You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name 2-[(5E)-5-[(6-ethoxy-1,3-benzodioxol-5-yl)methylidene]-2,4-dioxo-1,3-thiazolidin-3-yl]-N-phenylacetamide into its molecular formula.
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C21H18N2O6S
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