You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4E)-4-[(4-chloro-2,5-dimethoxyphenyl)-hydroxymethylidene]-5-(2,3-dimethoxyphenyl)-1-(3-methoxypropyl)pyrrolidine-2,3-dione The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H28ClNO8
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