You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name ethyl 1-[4-(5-chloro-2-hydroxyphenyl)-1,3-thiazol-2-yl]-3-(trifluoromethyl)piperidine-4-carboxylate into its molecular formula.
user
C18H18ClF3N2O3S
assistant