You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(5S)-1-[2-(diethylamino)ethyl]-4-[(4-ethoxyphenyl)-hydroxymethylidene]-5-(3-methoxyphenyl)pyrrolidine-2,3-dione is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H32N2O5
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