You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by 12,12,22,22-tetramethyl-N,N-bis(4-methylphenyl)-9-(4-phenylphenyl)hexacyclo[11.11.0.02,11.03,8.015,23.016,21]tetracosa-1(24),2(11),3,5,7,9,13,15(23),16,20-decaen-19-amine ?
user
C54H47N
assistant