The molecule is a tetrasaccharide consisting of two (1->5)-linked beta-D-galactofuranose units, which are in turn linked (1->6) to alpha-D-mannopyranosyl-(1->6)-D-mannopyranose. It has a role as a carbohydrate allergen.
(3S,4S,5S,6R)-6-[[(2S,3S,4S,5S,6R)-6-[[(2R,3R,4R,5R)-5-[(1R)-1-[(2R,3R,4R,5S)-5-[(1R)-1,2-dihydroxyethyl]-3,4-dihydroxyoxolan-2-yl]oxy-2-hydroxyethyl]-3,4-dihydroxyoxolan-2-yl]oxymethyl]-3,4,5-trihydroxyoxan-2-yl]oxymethyl]oxane-2,3,4,5-tetrol