You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-(1,3-benzothiazol-2-yl)-4-(3,5-dimethylpiperidin-1-yl)sulfonyl-N-ethylbenzamide by IUPAC nomenclature, provide its molecular formula.
user
C23H27N3O3S2
assistant