You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 2-[(5,7-dioxopyrrolo[3,4-b]pyridin-6-yl)methyl]-5-fluoro-N-(2-methylphenyl)benzenesulfonamide .
user
C21H16FN3O4S
assistant