You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (3S)-1-(2,3-dichlorophenyl)-N-[4-(3-methylphenoxy)phenyl]-5-oxopyrrolidine-3-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C24H20Cl2N2O3
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