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Under IUPAC nomenclature, a molecule named N-[4-[7-(furan-2-yl)-2-(3-hydroxypropyl)-4,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidin-5-yl]phenyl]acetamide is given. What is its corresponding molecular formula?
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C20H21N5O3
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