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-(5-chloropyridin-2-yl)-1-(4-methoxyphenyl)-1H-chromeno[2,3-c]pyrrole-3,9-dione is given. What is its corresponding molecular formula?
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C23H15ClN2O4
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