You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 6-(methylamino)-N-(4-methylcyclohexyl)-2-[methyl-[(4-methyl-1,2,4-triazol-3-yl)methyl]amino]-5-nitropyridine-3-carboxamide into molecular formula.
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C19H28N8O3
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