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 2-N-[3-(dimethylamino)propyl]-4-N-[(2-fluorophenyl)methyl]pyridine-2,4-dicarboxamide is given. What is its corresponding molecular formula?
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C19H23FN4O2
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