You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[6-(3,5-dimethylpyrazol-1-yl)pyrimidin-4-yl]-2,5-diethoxybenzenesulfonamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H23N5O4S
assistant