You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name [2-(4-methylanilino)-2-oxoethyl] 2-(3-chlorophenyl)-4-methyl-1,3-thiazole-5-carboxylate ?
user
C20H17ClN2O3S
assistant