You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[[2-[4-(naphthalen-1-ylmethyl)piperazine-1,4-diium-1-yl]acetyl]amino]-N-propan-2-ylacetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H32N4O2+2
assistant