The molecule is a disaccharide that is beta-D-glucopyranose in which the hydroxy group at position 6 has been converted into the corresponding alpha-L-arabinopyranoside. It derives from a beta-D-glucose and an alpha-L-arabinopyranose.
(2R,3R,4S,5S,6R)-6-[[(2S,3R,4S,5S)-3,4,5-trihydroxyoxan-2-yl]oxymethyl]oxane-2,3,4,5-tetrol