You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule [(1R,3R,7S,9R)-8-hydroxy-8-(4-methoxyoxan-4-yl)-5,5,11,11-tetramethyl-4,6,10,12-tetraoxatricyclo[7.3.0.03,7]dodecan-2-yl] benzoate into molecular formula.
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C25H34O9
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