You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
9-[4-(9,9-dimethyl-7-naphthalen-1-ylfluoren-2-yl)phenyl]pentacyclo[12.8.0.02,11.03,8.017,22]docosa-1(14),2(11),3,5,7,9,12,15,17,19,21-undecaene is the IUPAC name of a molecule. Please give its molecular formula.
user
C53H36
assistant