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 (E)-3-[2-hydroxy-3,5-bis(2-methylbut-3-en-2-yl)-6-propoxyphenyl]-1-(4-hydroxyphenyl)prop-2-en-1-one .
user
C28H34O4
assistant