You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(Z)-3-(1-ethenyl-3,3-dimethyl-1,2-dihydroinden-2-yl)prop-2-enyl]-N-[5-[(3Z)-hexa-1,3-dien-2-yl]-4-pentan-2-ylcyclohexa-1,3-dien-1-yl]-9-methyl-8,9-dihydro-7H-fluoren-3-amine is the IUPAC name of a molecule. Please give its molecular formula.
user
C47H57N
assistant