You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4Z)-1-cyclopentyl-5-(2,3-dimethoxyphenyl)-4-[(3,4-dimethylphenyl)-hydroxymethylidene]pyrrolidine-2,3-dione The above is the IUPAC name of a molecule. Write its molecular formula.
user
C26H29NO5
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