2H-1-Benzopyran-2-one, 7-((2-(acetylamino)-2-deoxy-6-O-sulfo-beta-D-glucopyranosyl)oxy)-4-methyl- 4-Methylumbelliferyl-6-sulfo-2-acetamido-2-deoxy-beta-glucopyranoside 4-Methylumbelliferyl-beta-D-N-acetylglucosamine-6-sulfate 4MUGS 93751-71-4 Mu-Glcnacs