The molecule is an amino tetrasaccharide comprised of an L-iduronic acid residue, sulfated on O-2, a glucuronic acid residue, and two N-acetylated galactosamine residues, one of which is at the reducing end and both of which are sulfated on O-4. It is an intermediate in the chondroitin sulfate degradation pathway. It has a role as a mouse metabolite.
(2R,3S,4S,5R,6S)-6-[(2S,3R,4R,5R,6R)-3-acetamido-2-[(2S,3S,4R,5R,6R)-6-[(3R,4R,5R,6R)-3-acetamido-2-hydroxy-6-(hydroxymethyl)-5-sulfooxyoxan-4-yl]oxy-2-carboxy-4,5-dihydroxyoxan-3-yl]oxy-6-(hydroxymethyl)-5-sulfooxyoxan-4-yl]oxy-3,4-dihydroxy-5-sulfooxyoxane-2-carboxylic acid