You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[[2-[[methyl(propan-2-yl)amino]methyl]phenyl]methyl]-6-oxo-1H-pyridazine-3-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C17H22N4O2
assistant