You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[(2-methylsulfonylanilino)methyl]-N-[(4-methyl-1,3-thiazol-2-yl)methyl]piperidine-1-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H26N4O3S2
assistant