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 4-[3-methyl-2-[[methyl(phenyl)hydrazinylidene]methyl]imidazol-3-ium-1-yl]butane-1-sulfonic acid .
user
C16H23N4O3S+
assistant