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 2-chloro-N-[(Z)-[5-(2-chloro-4-nitrophenyl)furan-2-yl]methylideneamino]benzamide is given. What is its corresponding molecular formula?
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C18H11Cl2N3O4
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