You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 2-[(1R,3aR,4R,5R,7aS)-1-hydroxy-5-[(1R,4R)-4-hydroxy-1-methyl-2-oxocyclohexyl]-7a-methyl-1,2,3,3a,4,5,6,7-octahydroinden-4-yl]acetic acid into molecular formula.
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C19H30O5
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