You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-(3-chloro-2-fluorophenyl)-5-[(1,3-dioxoisoindol-2-yl)methyl]-2-ethoxybenzamide by IUPAC nomenclature, provide its molecular formula.
user
C24H18ClFN2O4
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