You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [4-[2-(tert-butylamino)-2-oxoethoxy]-3-ethoxyphenyl]methyl-[(2-chlorophenyl)methyl]azanium by IUPAC nomenclature, provide its molecular formula.
user
C22H30ClN2O3+
assistant