You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-(4-chlorophenyl)-4-(3,4-dihydro-2H-quinolin-1-yl)-1-(2-ethoxyphenyl)pyrrole-2,5-dione is the IUPAC name of a molecule. Please give its molecular formula.
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C27H23ClN2O3
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