You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named ethyl 2-(13-methyl-17-oxo-3-phenylmethoxy-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-16-yl)-2-oxoacetate by IUPAC nomenclature, provide its molecular formula.
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C29H32O5
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