You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 4-[2,6-bis(2,6-dipyridin-2-ylpyridin-4-yl)pyridin-4-yl]-2,6-diphenylpyridine by IUPAC nomenclature, provide its molecular formula.
user
C52H34N8
assistant