You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name methyl 5-(2,3-dioxo-1,4-dihydroquinoxalin-6-yl)-3-oxo-2H-pyrazolo[4,3-c]pyridine-7-carboxylate into its molecular formula.
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C16H11N5O5
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