You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name cyclopenta-1,3-dien-1-ylbenzene;10,10-dimethyl-9H-benzo[a]azulene;N-(9,9-dimethylfluoren-2-yl)-7-methyl-3,4,9,10-tetrahydrobenzo[c]carbazol-5-amine;ethane into its molecular formula.
user
C65H74N2
assistant