You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named (4R,5S)-2,2-dimethyl-4-(4-phenylbutyl)-1,3-dioxaspiro[4.4]non-8-en-7-one is given. What is its corresponding molecular formula?
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C19H24O3
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