You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-[3-[3-(4,6-diphenyl-1,3,5-triazin-2-yl)phenyl]phenyl]-5-phenyl-[1,2,4]triazolo[1,5-c]quinazoline by IUPAC nomenclature, provide its molecular formula.
user
C42H27N7
assistant