You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(1S)-2-[2-(diethylamino)ethyl]-1-(4-ethoxyphenyl)-1H-chromeno[2,3-c]pyrrole-3,9-dione The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H28N2O4
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