Showing structure for 3-(3-carboxy-2-hydroxy-3-methylpropyl)-1-hydroxy-4-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-({[(2r,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}methyl)oxan-2-yl]oxy}naphthalene-2-carboxylic acid