You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
ethyl 4-[4-fluoro-3-[[4-(trifluoromethoxy)phenyl]methoxy]phenoxy]-1H-triazole-5-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H15F4N3O5
assistant