You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule N-[2-[(7-diethylazaniumylidenephenothiazin-3-yl)azaniumyl]ethyl]-1-[(2-methylpropan-2-yl)oxy]methanimidate .
user
C23H31N4O2S+
assistant