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Name the molecular formula for the molecule established as 3-O-ethyl 9-O-methyl (1S,4R,5R)-7-oxo-4-propan-2-yl-6-oxabicyclo[3.2.2]nona-2,8-diene-3,9-dicarboxylate using the IUPAC nomenclature.
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C16H20O6
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