The molecule is a glycosyl alditol that is D-glucitol in which the hydroxy groups at positions 3 and 4 have been converted to the corresponding 6-deoxy-alpha-L-galactopyranoside (also known as alpha-L-fucoside) and beta-D-galactopyranoside, respectively. It is a galactoside and a glycosyl alditol. It derives from a D-glucitol.
(2R,3R,4R,5S)-3-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-4-[(2S,3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyhexane-1,2,5,6-tetrol