You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule N-[2,6-dichloro-4-[[2-(2-methyl-1,3-thiazol-4-yl)acetyl]amino]phenyl]-4-methylsulfonylbenzamide ?
user
C20H17Cl2N3O4S2
assistant