You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
ethyl 3-[3-[2,4-difluoro-3-(methanesulfonamido)benzoyl]-2H-pyrazolo[3,4-b]pyridin-5-yl]benzoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H18F2N4O5S
assistant