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system
Name the molecular formula for the molecule established as [(5R,7R,8R,9S,10R,13S,17R)-4,4,10,13-tetramethyl-3-oxo-17-(4-oxofuran-3-yl)-6,7,8,9,11,12,16,17-octahydro-5H-cyclopenta[a]phenanthren-7-yl] acetate using the IUPAC nomenclature.
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C27H34O5
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