You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 5-(2-phenylphenyl)-11-[4-phenyl-6-(3-phenylphenyl)-1,3,5-triazin-2-yl]indolo[3,2-b]carbazole into its molecular formula.
user
C51H33N5
assistant