You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl 2-(ethylamino)-2-methyl-3-[propan-2-yl(2,2,2-trifluoroethyl)amino]propanoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C12H23F3N2O2
assistant