You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule N-[2-[(3S)-3-(4-methylphenyl)-2-(2-methylpropanoyl)-3,4-dihydropyrazol-5-yl]phenyl]methanesulfonamide .
user
C21H25N3O3S
assistant