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 N-(2,3-dimethyl-6-nitrophenyl)-2-(1,3-dioxo-2-azaspiro[4.5]decan-2-yl)acetamide is given. What is its corresponding molecular formula?
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C19H23N3O5
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