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-hydroxy-1-(4-hydroxy-2-methoxyphenyl)-3-[4-hydroxy-3-(3-methylbut-2-enyl)phenyl]propan-2-yl] 4-hydroxy-3,5-dimethoxybenzoate .
user
C30H34O9
assistant