You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (3S,8S)-3-(2,4-dihydroxyphenyl)-8-[(2R)-1,2-dihydroxypropan-2-yl]-5-hydroxy-2,3,8,9-tetrahydrofuro[2,3-h]chromen-4-one .
user
C20H20O8
assistant