You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance (4aR,9bR)-2-[3-(2-chlorophenyl)prop-2-enyl]-8-methyl-5-(4-methylphenyl)-3,4,4a,9b-tetrahydro-1H-pyrido[4,3-b]indole .
user
C28H29ClN2
assistant