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 2-(12-oxobenzo[b]acridin-5-yl)ethyl 7-(diethylamino)-2-oxochromene-3-carboxylate is given. What is its corresponding molecular formula?
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C33H28N2O5
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