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system
Provide the molecular formula for the IUPAC named substance 11-hydroxy-10,13-dimethyl-3-oxo-16-propyl-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthrene-17-carboxylic acid .
user
C23H34O4
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