You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 1-benzyl-3-[[4-[[3-[(2-ethylphenyl)methyl]imidazol-1-ium-1-yl]methyl]phenyl]methyl]imidazol-1-ium .
user
C30H32N4+2
assistant