You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[3-(trifluoromethyl)phenyl]methyl 4-[[ethyl(methyl)amino]methylideneamino]-3-methyl-2-(trifluoromethyl)benzoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C21H20F6N2O2
assistant