You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [2-[[(1S)-1-(1,3-benzothiazol-2-yl)ethyl]-methylamino]-2-oxoethyl]-[[4-(dimethylamino)phenyl]methyl]-methylazanium by IUPAC nomenclature, provide its molecular formula.
user
C22H29N4OS+
assistant