You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[3-[(2,4-dioxo-6-pyrimidin-2-yloxy-1H-quinazolin-3-yl)methyl]phenyl]-3-fluorobenzenesulfonamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H18FN5O5S
assistant