You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
ethyl 2-[[3-[3-(trifluoromethyl)phenyl]-1,2,4-oxadiazol-5-yl]methylsulfanyl]acetate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C14H13F3N2O3S
assistant