You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-(3-methyl-1,2,4-oxadiazol-5-yl)-N-[2-[2-nitro-4-(trifluoromethyl)anilino]ethyl]benzamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H16F3N5O4
assistant