You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 3-(aminomethyl)-4-(2,4-dichlorophenyl)-6-[(2S)-1-methoxypropan-2-yl]-2-methyl-7H-pyrrolo[3,4-b]pyridin-5-one;2,2,2-trifluoroacetic acid by IUPAC nomenclature, provide its molecular formula.
user
C21H22Cl2F3N3O4
assistant