5-acetamido-2-[2-[5-acetamido-2-[[5-acetamido-2-carboxy-4-hydroxy-6-(1,2,3-trihydroxypropyl)oxan-2-yl]oxymethyl]-6-[2-[[3-acetamido-4-hydroxy-6-(hydroxymethyl)-5-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxymethyl]-3,5-dihydroxy-6-(1,2,4,5-tetrahydroxy-6-oxohexan-3-yl)oxyoxan-4-yl]oxy-3-hydroxyoxan-4-yl]oxy-3,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-4-hydroxy-6-(1,2,3-trihydroxypropyl)oxane-2-carboxylic acid