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-cyano-N-[[2-(4,7-dichloro-3-hydroxy-2-oxo-1H-indol-3-yl)-1-(furan-2-yl)ethylidene]amino]acetamide into its molecular formula.
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C17H12Cl2N4O4
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