You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[4-(3-ethyl-2,6-dioxopiperidin-3-yl)phenyl]-5-nitro-2-pyrrolidin-1-ylbenzamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C24H26N4O5
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