beta-D-galactosyl-(1->4)-N-acetyl-beta-D-glucosaminyl-(1->3)-[(->3)-6-O-sulfo-beta-D-galactosyl-(1->4)-N-acetyl-beta-D-glucosaminyl-(1->)] n polyanion
beta-d-galactosyl-(1->4)-n-acetyl-beta-d-glucosaminyl-(1->3)-[(->3)-6-o-sulfo-beta-d-galactosyl-(1->4)-n-acetyl-beta-d-glucosaminyl-(1->)] n polyanion
"A sulfated glycosaminoglycan polyanion arising from deprotonation of the sulfate groups of 6-O-sulfo-beta-D-galactosyl-(1->4)-N-acetyl-beta-D-glucosamine repeating units."