You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named methyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)-3-(5,6,7-trihydroxy-4-oxo-2-phenylchromen-8-yl)propanoate by IUPAC nomenclature, provide its molecular formula.
user
C33H36O8
assistant