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13C-n.m.r. analysis of some sulphate derivatives of chitosan
S Hirano1, M Hasegawa, J Kinugawa
1Department of Agricultural Biochemistry and Biotechnology, Tottori University, Japan.
International Journal of Biological Macromolecules
|October 1, 1991
Abstract:
Positions of substitution with sulphate in three water-soluble sulphated derivatives of chitosan were analysed by 13C n.m.r. The structures of N-acetylchitosan 3,6-O-disulphate, sodium chitosan N-, 6-O-disulphate, and sodium chitosan 6-O-monosulphate were confirmed.