You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named ethyl 2-(4-bromo-3-methoxy-6,7,8,9-tetrahydro-5H-benzo[7]annulen-2-yl)-2-oxoacetate is given. What is its corresponding molecular formula?
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C16H19BrO4
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