SMILES: C1[C@H]([C@@H]([C@H]([C@@H]([C@H]1[NH3+])O[C@@H]2C(=O)[C@H]([C@@H]([C@H](O2)C[NH3+])O)O)O)O[C@@H]3[C@@H]([C@H]([C@@H]([C@H](O3)CO)O)[NH3+])O)[NH3+]
Description: The molecule is a quadruply-charged organic cation arising from protonation of the four amino groups of 2'-oxokanamycin A; major species at pH 7.3. It is an organic cation and an ammonium ion derivative. It is a conjugate acid of a 2'-oxokanamycin.