You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1H-pyrazol-5-yl-[4-(6-pyrazol-1-yl-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)piperidin-1-yl]methanone The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H17N9O
assistant