You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named methyl 2-[4-[[2-(5-bromo-1-benzofuran-2-yl)-4-oxoquinazolin-3-yl]iminomethyl]-2-iodo-6-methoxyphenoxy]acetate by IUPAC nomenclature, provide its molecular formula.
user
C27H19BrIN3O6
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