(2S,3R,4S,5R,6R)-5-[(3R,4S,5R,6R)-3,4-dihydroxy-6-(hydroxymethyl)-5-[(3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-oxan-2-yl]oxy-6-(hydroxymethyl)oxane-2,3,4-triol