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What is the molecular formula of the compound with this IUPAC name [(3S,4S,8S,9R,10R,13S,14R)-4-hydroxy-10,13-dimethyl-7-oxo-1,2,3,4,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-yl] acetate ?
user
C21H30O4
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