You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 5-(2-methoxyethyl)-3-[4-methyl-6-(1H-1,2,4-triazol-5-yl)pyridin-3-yl]-7,8-dihydropyrazino[2,3-b]pyrazin-6-one;molecular hydrogen .
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C17H20N8O2
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