2H-1-Benzopyran-2-one, 7-((2-(acetylamino)-4-O-(2-(acetylamino)-2-deoxy-beta-D-glucopyranosyl)-2-deoxy-beta-D-glucopyranosyl)oxy)-4-methyl- 4-Methylumbelliferyl-N,N'-diacetyl-beta-chitobiose 4-Methylumbelliferyl-N,N-diacetylchitobioside 4-Mudacb 53643-12-2 Me-Dinag