You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 4-[1-[[4-[[4-(dimethylamino)quinazolin-2-yl]amino]cyclohexyl]amino]-4-hydroxy-4-(4-propan-2-ylphenyl)butan-2-yl]-5-methyl-2-phenyl-4H-pyrazol-3-one by IUPAC nomenclature, provide its molecular formula.
user
C39H49N7O2
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