You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[6-[[1-oxo-2-[4-(trifluoromethyl)phenyl]-3H-isoindol-4-yl]oxymethyl]-1-benzofuran-3-yl]acetic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H18F3NO5
assistant