You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 4,4-bis(2,2,6,6-tetramethylpiperidin-4-yl)-1,5-dioxaspiro[5.5]undecane-3,3-dicarboxylate into molecular formula.
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C29H48N2O6-2
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