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 4-[3-[(6E)-6-(1-aminoethenyl)-3-[2-(methylamino)ethyl]nona-6,8-dienyl]phenyl]-4-cyclopropylbut-1-en-2-ol ?
user
C27H40N2O
assistant