You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule N-methyl-N-[4-[methyl-(2-pyridin-1-ium-1-ylacetyl)amino]phenyl]-2-pyridin-1-ium-1-ylacetamide ?
user
C22H24N4O2+2
assistant