You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
dimethyl (E)-2-[4-bromo-3-[2,6-difluoro-4-(trifluoromethyl)phenoxy]anilino]but-2-enedioate is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H13BrF5NO5
assistant