You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name 3-[(2-bromo-4-hydroxy-5-methoxyphenyl)methylidene]-6-chloro-1,2-dihydropyrrolo[2,1-b]quinazolin-9-one into its molecular formula.
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C19H14BrClN2O3
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