You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[5-[phenyl(1H-pyrrol-2-yl)methyl]-1H-pyrrol-2-yl]-(2,4,6-trimethylphenyl)methanone is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H24N2O
assistant