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 1-methyl-3-[6-[6-morpholin-4-yl-1-(oxan-4-yl)pyrazolo[3,4-d]pyrimidin-4-yl]quinazolin-2-yl]urea is given. What is its corresponding molecular formula?
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C24H27N9O3
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