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What is the molecular formula of the molecule (2R,7S,12R,13S,14R,16S,19R,20S)-19-(furan-2-yl)-12-hydroxy-9,9,13,20-tetramethyl-4,8,15,18-tetraoxahexacyclo[11.9.0.02,7.02,10.014,16.014,20]docosane-5,11,17-trione ?
user
C26H30O9
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