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 ethane;3-ethenyl-1-ethyl-5-[(3E)-6-methylhepta-1,3,5-trien-4-yl]-2-[(Z)-prop-1-enyl]indole .
user
C25H33N
assistant