You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named N-[6-[3-amino-6-[6-(3-methoxyazetidin-1-yl)pyridin-3-yl]pyrazin-2-yl]pyridin-3-yl]-1-(3-methoxyphenyl)-2,3-dimethyl-5-oxopyrazole-4-carboxamide by IUPAC nomenclature, provide its molecular formula.
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C31H31N9O4
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