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-amino-2-[4-(2-hydroxyethyl)piperazin-1-yl]-7-(4-pyridin-4-yloxyanilino)pyrazolo[1,5-a][1,3,5]triazine-8-carbonitrile by IUPAC nomenclature, provide its molecular formula.
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C23H24N10O2
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