You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[2-[4-chloro-2-(trifluoromethyl)anilino]-2-oxoethyl] 4-[(2,5-dioxoimidazolidin-1-yl)methyl]benzoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C20H15ClF3N3O5
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