You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 1-[2-(4,4-dimethyl-2,5-dioxoimidazolidin-1-yl)ethyl]-3-methylpiperidine-2-carboxylic acid by IUPAC nomenclature, provide its molecular formula.
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C14H23N3O4
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