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Under IUPAC nomenclature, a molecule named ethyl 6-amino-5-cyano-4-[3,5-dibromo-4-[(3,4-dichlorophenyl)methoxy]phenyl]-2-methyl-4H-pyran-3-carboxylate is given. What is its corresponding molecular formula?
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C23H18Br2Cl2N2O4
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