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system
Provide the molecular formula for the IUPAC named substance 4-[12-acetyloxy-3-hydroxy-4-(hydroxymethyl)-4,10,13,14-tetramethyl-7,11,15-trioxo-1,2,3,5,6,12,16,17-octahydrocyclopenta[a]phenanthren-17-yl]pentanoic acid .
user
C29H40O9
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