L-Glutamic acid, compd. with chitosan

(2R,3R,4R,5S,6R)-3-amino-5-[(2S,3R,4R,5S,6R)-3-amino-5-[(2S,3R,4R,5S,6 R)-3-amino-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-4-hydroxy-6-(h ydroxymethyl)oxan-2-yl]oxy-6-(hydroxymethyl)oxane-2,4-diol: 2-aminopen tanedioic acid