You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name 2-[(1S,3S,4aR,9aS)-1,3-diacetyloxy-9-oxo-1,3,4,5,6,7,8,9a-octahydrocyclohepta[c]pyran-4a-yl]ethyl acetate into its molecular formula.
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C18H26O8
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