You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named [2-[(3R)-3-acetyloxy-17-hydroxy-10,13-dimethyl-11-oxo-2,3,4,5,6,7,8,9,12,14,15,16-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl]-2-oxoethyl] acetate by IUPAC nomenclature, provide its molecular formula.
user
C25H36O7
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