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,N,2-trimethyl-6-[4-(2-methyl-5-propan-2-ylphenyl)sulfonylpiperazin-1-yl]pyrimidin-4-amine .
user
C21H31N5O2S
assistant