chitobioses beta-D-glucosaminyl-(1->4)-D-glucosamine 0 2-amino-4-O-(2-amino-2-deoxy-beta-D-glucopyranosyl)-2-deoxy-D-glucopyranose 340.148 340.32704 Beilstein:1654149 C12H24N2O9 CHEBI:50675 InChI=1S/C12H24N2O9/c13-5-9(19)10(4(2-16)21-11(5)20)23-12-6(14)8(18)7(17)3(1-15)22-12/h3-12,15-20H,1-2,13-14H2/t3-,4-,5-,6-,7-,8-,9-,10-,11?,12+/m1/s1 N[C@H]1C(O)O[C@H](CO)[C@@H](O[C@@H]2O[C@H](CO)[C@@H](O)[C@H](O)[C@H]2N)[C@@H]1O QLTSDROPCWIKKY-ZMYKSUFESA-N chebi_ontology