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What is the molecular formula of the compound with this IUPAC name (8S,9S,10R,13S,14R,17S)-17-acetyl-17-hydroxy-10,13-dimethyl-15,16-dimethylidene-11-trimethylsilyloxy-7,8,9,11,12,14-hexahydro-6H-cyclopenta[a]phenanthren-3-one ?
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C26H36O4Si
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