You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-[4-[1-(aminomethyl)-4-oxo-3H-isoquinolin-7-yl]-2-methylpyrazol-3-yl]-N-methylbenzamide by IUPAC nomenclature, provide its molecular formula.
user
C22H21N5O2
assistant