You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as N-(2,4-dimethylphenyl)-N-[4-[5-(3,5-diphenylphenyl)-7,7-dimethylindeno[2,1-b]carbazol-2-yl]phenyl]-2,4-dimethylaniline using the IUPAC nomenclature.
user
C61H50N2
assistant