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 4,9,9-triphenyl-2-[3-(12-phenylindolo[3,2-c]carbazol-5-yl)phenyl]-[1]benzogermolo[2,3-d]pyrimidine .
user
C58H38GeN4
assistant