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 9-[4-(9,10-dihydrophenanthren-9-yl)-2-bicyclo[4.1.0]hepta-2,4-dienyl]-10-(3-ethenyl-5-ethylphenyl)anthracene .
user
C45H36
assistant