The molecule is a pentasaccharide composed of four (1->5)-linked beta-D-galactofuranose units, which are joined (1->6)-linkage to a D-mannopyranose at the reducing end. It has a role as a carbohydrate allergen.
(3S,4S,5S,6R)-6-[[(2R,3R,4R,5R)-5-[(1R)-1-[(2R,3R,4R,5R)-5-[(1R)-1-[(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]oxy-2-hydroxyethyl]-3,4-dihydroxyoxolan-2-yl]oxy-2-hydroxyethyl]-3,4-dihydroxyoxolan-2-yl]oxymethyl]oxane-2,3,4,5-tetrol