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Under IUPAC nomenclature, a molecule named 2-[4-(hydroxymethyl)-5-[1-methyl-6-oxo-5-[(5-piperazin-1-ylpyridin-2-yl)amino]pyridin-3-yl]pyridin-3-yl]-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-1-one is given. What is its corresponding molecular formula?
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C32H36N8O3
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