... Deacetylchitin; Poly-(D)glucosamine Appearance: white powderSpecifications: 85%,90%,95% Degree of Deacetylation Test Method: HPLC ChemSpider: 64870CAS No.: ... distributed β-(1-4)-linked D-glucosamine (deacetylated unit) and N-acetyl-D-glucosamine (acetylated unit). Off-white, innocuous, flavorless ... semitransparent flake or powderDegree of Deacetylation, %≥85,90, 95≥85, 90, 95≥80, 85, 90pH7.0-8.07.0-8. ...