You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[3-chloro-4-[4-(2,2-difluoroethoxy)-9-ethoxy-3-hydroxybenzo[f]isoindol-2-yl]phenyl]acetic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C24H20ClF2NO5
assistant