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system
Name the molecular formula for the molecule established as 2-[1-[(1S,9R,10R,15S)-15-hydroxy-9,10,14,14-tetramethyl-16-oxapentacyclo[13.2.2.01,13.02,10.05,9]nonadecan-6-yl]ethenyl]-5-methyl-2,3-dihydropyran-6-one using the IUPAC nomenclature.
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C30H44O4
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