You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[1-[(2E)-2-ethenyl-1-phenylpenta-2,4-dienyl]piperidin-4-yl]-1,2,4,5-tetrahydro-3-benzazepine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C28H34N2
assistant