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What is the molecular formula of the compound with this IUPAC name (2S)-3-[2-[(1R,2S,4aR,8aR)-1,2,4a,5-tetramethyl-2,3,4,7,8,8a-hexahydronaphthalen-1-yl]ethyl]-2-hydroxy-2H-furan-5-one ?
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C20H30O3
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