You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[2-bromo-4-[(4-bromophenyl)methoxy]-5-methoxyphenyl]-2-cyano-N-(3,4-dimethylphenyl)prop-2-enamide is the IUPAC name of a molecule. Please give its molecular formula.
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C26H22Br2N2O3
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