You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[8-amino-5-(6-oxo-1H-pyridin-3-yl)-[1,2,4]triazolo[1,5-a]pyrazin-6-yl]benzonitrile The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H11N7O
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