... .40-100mesh 3.molecular weight (20,000-300,000) and Chitosan Oligosaccharide (1,000-8,000). Character: Off-white, innocuous, flavourless ... amorphous solid. Soluble in acid, but insoluble in alkali and water or in ordinary organic solvent. Decomposed at 185°C. Applications ... or according to demand. *(1)We can supply high-purity chitosan with deacetylation degree >95%.**(2)The viscosity is determined at ...