You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4Z)-4-[(2-chloro-5-ethoxyphenyl)-hydroxymethylidene]-5-(furan-2-yl)-1-(furan-2-ylmethyl)pyrrolidine-2,3-dione The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H18ClNO6
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