You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [1-oxo-1-[3-(trifluoromethyl)anilino]propan-2-yl] 2-ethoxypyridine-3-carboxylate by IUPAC nomenclature, provide its molecular formula.
user
C18H17F3N2O4
assistant