You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-(2,3-dihydro-1H-indol-3-yl)-4-[2-(4-methylpiperazin-1-yl)quinazolin-4-yl]pyrrole-2,5-dione The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H24N6O2
assistant