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 [1-(2,5-dichloroanilino)-1-oxopropan-2-yl] 2-[(4-methylphenoxy)methyl]-1,3-thiazole-4-carboxylate .
user
C21H18Cl2N2O4S
assistant