You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
ethyl 1-[3-(2-bromoanilino)-3-oxopropyl]-2-methyl-5-(4-methylphenyl)pyrrole-3-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C24H25BrN2O3
assistant