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 1-(2-bromophenyl)-3-[2-hydroxy-3-(2-hydroxy-5-prop-2-enylphenyl)-5-prop-2-enylphenyl]prop-2-en-1-one .
user
C27H23BrO3
assistant