Showing structure for (2s,3r,4s,5r,6s)-6-[(1s)-1-[(2s,3r,4r,6s)-6-carboxy-4-{[(2s,3r,4s,5r,6s)-6-carboxy-3,4,5-trihydroxyoxan-2-yl]oxy}-3,6-dihydroxyoxan-2-yl]-2-hydroxyethoxy]-3,4,5-trihydroxyoxane-2-carboxylic acid