SMILES: CC(=O)NC[C@@H]1[C@H]([C@@H]([C@H]([C@H](O1)O[C@@H]2[C@H](C[C@H]([C@@H]([C@H]2O)O[C@@H]3[C@@H]([C@H]([C@@H]([C@H](O3)CO)O)[NH3+])O)[NH3+])[NH3+])[NH3+])O)O
Description: The molecule is a quadruply-charged ammonium ion arising from protonation of the four free amino groups of N(6')-acetylkanamycin; major species at pH 7.3. It is an organic cation and an ammonium ion derivative. It is a conjugate acid of a N(6')-acetylkanamycin B.