You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance N-[4-[(4,6-dimethylpyrimidin-2-yl)sulfamoyl]phenyl]-2-(3-methyl-4-nitropyrazol-1-yl)acetamide .
user
C18H19N7O5S
assistant