You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (2R,3S,4R,5R,6S)-6-[2-[(4-ethylphenyl)methyl]-5-(oxolan-2-yloxymethyl)phenoxy]-2-(hydroxymethyl)-3-methyloxane-3,4,5-triol by IUPAC nomenclature, provide its molecular formula.
user
C27H36O8
assistant