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 9-amino-5-(2,5-difluoro-4-methoxyphenyl)-2-[(4-methoxyphenyl)methyl]-3H-pyrrolo[3,4-b]quinolin-1-one ?
user
C26H21F2N3O3
assistant