You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 1-[[6-hydroxy-5-[5-(2-piperazin-1-ylethoxy)-1,3-dihydroisoindole-2-carbonyl]-2H-indazol-3-yl]methyl]piperidin-2-one is given. What is its corresponding molecular formula?
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C28H34N6O4
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