You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 5-[[4-[methyl-[(1-methylsulfonylpiperidin-3-yl)methyl]amino]-5-(trifluoromethyl)pyrimidin-2-yl]amino]-1,3-dihydroindol-2-one ?
user
C21H25F3N6O3S
assistant