Showing structure for (1r,3r,4s)-6-[(1r,3r)-5,10-dihydroxy-1,3-dimethyl-7-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-1h,3h,4h-naphtho[2,3-c]pyran-9-yl]-4,7,10-trihydroxy-1,3-dimethyl-1h,3h,4h-naphtho[2,3-c]pyran-8,9-dione