You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-N-[(4-ethylsulfonylphenyl)methyl]-4-(2-fluoroethoxy)-3-N-[[2-(trifluoromethoxy)phenyl]methyl]benzene-1,3-dicarboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H26F4N2O6S
assistant