You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named (4-amino-3-cyano-2-oxopent-3-enyl) 2-[(2,4-dichlorophenyl)methoxy]benzoate is given. What is its corresponding molecular formula?
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C20H16Cl2N2O4
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