6734-92-5 Chitohexaose D-Glucopyranose, O-2-amino-2-deoxy-beta-D-glucopyranosyl-(1-4)-O-2-amino-2-deoxy-beta-D-glucopyranosyl-(1-4)-O-2-amino-2-deoxy-beta-D-glucopyranosyl-(1-4)-O-2-amino-2-deoxy-beta-D-glucopyranosyl-(1-4)-O-2-amino-2-deoxy-beta-D-glucopyranosyl-(1-4)-2-amino-2-deoxy-