The molecule is a branched oligosaccharide consisting of six D-galactose residues linked alpha(1->6), with the second and fifth residues being branched at O-2 to alpha-L-Araf-(1->5)-alpha-L-Araf and alpha-L-Araf residues respectively.
(2R,3S,4S,5R)-6-[(2R,3R,4S,5R,6R)-3-[(2R,3R,4R,5S)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]oxy-6-[[(2R,3R,4S,5R,6R)-6-[[(2R,3R,4S,5R,6R)-6-[[(2R,3R,4S,5R,6R)-3-[(2S,3R,4R,5S)-5-[[(2R,3R,4R,5S)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]oxymethyl]-3,4-dihydroxyoxolan-2-yl]oxy-4,5-dihydroxy-6-[[(2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxymethyl]oxan-2-yl]oxymethyl]-3,4,5-trihydroxyoxan-2-yl]oxymethyl]-3,4,5-trihydroxyoxan-2-yl]oxymethyl]-4,5-dihydroxyoxan-2-yl]oxy-2,3,4,5-tetrahydroxyhexanal