The molecule is a disaccharide that is D-mannitol in which the hydroxy group at position 3 has been converted into the corresponding alpha-L-fucoside. It is an O-acyl carbohydrate and an alpha-L-fucoside. It derives from a D-mannitol.
(2R,3R,4R,5R)-4-[(2S,3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyhexane-1,2,3,5,6-pentol