The molecule is an amino pentasaccharide comprising an N-acetylated galactosamine residue, sulfated on O-4, a glucuronic acid residue and two galactose residues, linked to a xylose residue at the reducing end. It is an intermediate in the chondroitin sulfate degradation pathway.
(2S,3S,4R,5R,6R)-3-[(2S,3R,4R,5R,6R)-3-acetamido-4-hydroxy-6-(hydroxymethyl)-5-sulfooxyoxan-2-yl]oxy-6-[(2S,3R,4S,5S,6R)-2-[(2R,3S,4S,5R,6S)-3,5-dihydroxy-2-(hydroxymethyl)-6-[(3R,4R,5R,6R)-4,5,6-trihydroxyoxan-3-yl]oxyoxan-4-yl]oxy-3,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-4,5-dihydroxyoxane-2-carboxylic acid