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 7-hydroxy-10-(hydroxymethyl)-5',6,6',14,16-pentamethylspiro[2,20-dioxatricyclo[17.3.1.04,9]tricosa-4(9),5,7,10,12,16-hexaene-21,2'-oxane]-3-one is given. What is its corresponding molecular formula?
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C31H42O6
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