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 [(3aR,4S,5S)-4-methyl-2-oxo-5-(2-trimethylsilylethoxymethoxy)-3a,5,6,7-tetrahydro-3H-inden-4-yl] acetate is given. What is its corresponding molecular formula?
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C18H30O5Si
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