You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name 6-(furan-2-yl)-9-(4-methylphenyl)-5,6,7,9-tetrahydro-4H-[1,2,4]triazolo[5,1-b]quinazolin-8-one into its molecular formula.
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C20H18N4O2
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