You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by (4E)-1-(3-chloro-4-methylphenyl)-4-[hydroxy-(4-nitrophenyl)methylidene]-5-(1H-indol-3-yl)pyrrolidine-2,3-dione ?
user
C26H18ClN3O5
assistant