Showing structure for 1-(1,5-dihydroxy-3-methyl-8-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-({[(2s,3r,4s,5r)-3,4,5-trihydroxyoxan-2-yl]oxy}methyl)oxan-2-yl]oxy}naphthalen-2-yl)ethanone