You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 2-[6-[10-(4,4a-dihydro-1,10-phenanthrolin-2-yl)anthracen-9-yl]pyrido[2,3-b]indol-9-yl]-1,10-phenanthroline .
user
C49H30N6
assistant