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-[2-[4-(2,3-dimethylphenyl)piperazin-1-yl]-2-oxoethyl]-N-(3-nitrophenyl)benzenesulfonamide .
user
C26H28N4O5S
assistant