You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
7-[[4-[[2-(ethylamino)-4-methylphenyl]methylamino]-5-(trifluoromethyl)pyrimidin-2-yl]amino]-1,3-dihydroindol-2-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H23F3N6O
assistant