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-[4-(dimethylcarbamoyl)-3-methylphenyl]-2-oxo-3,4-dihydro-1H-quinoline-6-carboxamide is given. What is its corresponding molecular formula?
user
C20H21N3O3
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