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 (2S,6S,7aR)-2-[(1S)-1-hydroxyethyl]-4,4,7a-trimethyl-2,5,6,7-tetrahydro-1-benzofuran-6-ol is given. What is its corresponding molecular formula?
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C13H22O3
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