You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 3-(3-chloro-2-methylanilino)-1-(4-chlorophenyl)-4-(2,4-dimethylphenyl)pyrrole-2,5-dione into its molecular formula.
user
C25H20Cl2N2O2
assistant