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 [(1R,3R,7R,9R)-8-hydroxy-5,5,11,11-tetramethyl-4,6,10,12-tetraoxatricyclo[7.3.0.03,7]dodecan-2-yl] 4-bromobenzenesulfonate is given. What is its corresponding molecular formula?
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C18H23BrO8S
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