You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (5E)-10-(2-ethenylphenyl)-N,N,1,3-tetramethyl-9-methylidene-10-(2-methylpropyl)-1,7,8,10a-tetrahydrobenzo[8]annulen-6-amine into molecular formula.
user
C29H39N
assistant