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What is the molecular formula of the compound with this IUPAC name (4-hydroxy-9a-methoxy-3,4a,5-trimethyl-2-oxo-5,6,7,9-tetrahydro-4H-benzo[f][1]benzofuran-6-yl) 3-methylpent-2-enoate ?
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C22H30O6
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