You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[4-(4-acetylphenyl)piperazin-1-ium-1-yl]-N-methyl-N-[(1R)-1-phenylethyl]acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H30N3O2+
assistant