You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-(2-methylpiperidin-1-yl)sulfonyl-N-[3-(5-methyl-1H-pyrazol-4-yl)propyl]benzamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C20H28N4O3S
assistant