You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by N-[4-[(5-chloro-2-methylphenyl)sulfamoyl]phenyl]-2-[(2,6-dichlorophenyl)methylsulfanyl]acetamide ?
user
C22H19Cl3N2O3S2
assistant