You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2R,3R,4aS,10bS)-5,5-dimethyl-7-propan-2-yl-2-[(4-propan-2-ylphenoxy)methyl]-3,4,4a,10b-tetrahydro-2H-pyrano[3,2-c]chromene-3-carboxylic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C28H36O5
assistant