You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4E)-4-[hydroxy-(3-methoxyphenyl)methylidene]-1-(2-hydroxyphenyl)-5-(1H-indol-3-yl)pyrrolidine-2,3-dione The above is the IUPAC name of a molecule. Write its molecular formula.
user
C26H20N2O5
assistant