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-[4-(1H-benzimidazol-2-ylmethylamino)-6-(diethylamino)-1,3,5-triazin-2-yl]pyrrolidin-2-yl]methanol is given. What is its corresponding molecular formula?
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C20H28N8O
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