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-[3-[2-(2,2-dimethylpropanoyl)-3-(3-nitrophenyl)-3,4-dihydropyrazol-5-yl]phenyl]methanesulfonamide .
user
C21H24N4O5S
assistant