Showing structure for 9-[(1r,5r,10r,11r,13s)-5,11-dimethyl-6-oxo-2,4,9,12-tetraoxatricyclo[8.4.0.0³,⁸]tetradecan-13-yl]-1,5,8-trihydroxy-3-methyltetraphene-7,12-dione