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 6-chloro-3-[(6-chloro-4H-1,3-benzodioxin-8-yl)methyl]quinazolin-4-one is given. What is its corresponding molecular formula?
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C17H12Cl2N2O3
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