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Dependence of NH resonance line widths on solution pH at 298.2K. (a) Results for the uncharged N-acetylated saccharides GalNAc, GlcNAc, chitin disaccharide, and the charged N-acetylated saccharides GlcNAc6S, GlcNAc3S, and NAcA. (b) Results for a family of N-sulfated glucosamine monosaccharides: D-glucosamine-2-N-sulfate (GlcNS), D-glucosamine-2-N,3-O-disulfate (GlcNS3S), D-glucosamine-2-N,3-O,6-O-trisulfate (GlcNS3S6S), and D-glucosamine-2- N,6-O-disulfate (GlcNS3S6S).
