You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-ethyl-6-[[(1R)-1-(2-methoxy-5-methylphenyl)ethyl]amino]-N-phenylpyridin-1-ium-3-sulfonamide by IUPAC nomenclature, provide its molecular formula.
user
C23H28N3O3S+
assistant