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-(3,4-dihydroxyphenyl)-1-[(2S)-5-hydroxy-2-methyl-2-(4-methylpent-3-enyl)chromen-6-yl]prop-2-en-1-one .
user
C25H26O5
assistant