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-[5-[(2,4-dichlorophenyl)methyl]-1,3-thiazol-2-yl]-3-(2-oxoimidazolidin-1-yl)benzamide .
user
C20H16Cl2N4O2S
assistant