You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-[(1R,2S)-1-[4-(2-methylpropanoyl)piperazin-1-ium-1-yl]-2,3-dihydro-1H-inden-2-yl]benzenesulfonamide by IUPAC nomenclature, provide its molecular formula.
user
C23H30N3O3S+
assistant