You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 2,4,6,8,10,12-hexadeuterio-5-(4,6-diphenyl-1,3,5-triazin-2-yl)-7H-indolo[2,3-b]carbazole ?
user
C33H21N5
assistant