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-(3-chlorophenyl)-3-[4-[2-(3,5-dimethylpiperidin-1-yl)-2-oxoethyl]-1,3-thiazol-2-yl]urea .
user
C19H23ClN4O2S
assistant