You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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2-bromo-4-(2-methoxyethyl)-N-(2-methyl-3-oxo-1H-isoindol-5-yl)furo[3,2-b]pyrrole-5-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
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C19H18BrN3O4
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