SMILES: C1[C@@H]([C@H]([C@@H]([C@H]([C@@H]1NC(=O)[C@H](CC[NH3+])O)O[C@@H]2[C@@H]([C@H]([C@@H]([C@H](O2)CO)O)[NH3+])O)O)O[C@@H]3[C@@H]([C@H]([C@@H]([C@H](O3)C[NH3+])O)O)O)[NH3+]
Description: The molecule is an organic cation obtained by protonation of the four free amino groups of amikacin; major species at pH 7.3. It is an ammonium ion derivative and an organic cation. It is a conjugate acid of an amikacin.