You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-[2-[3-amino-5-(trifluoromethyl)phenoxy]ethyl]methanesulfonamide;N-[2-[3-nitro-5-(trifluoromethyl)phenoxy]ethyl]methanesulfonamide into molecular formula.
user
C20H24F6N4O8S2
assistant