SMILES: C[C@H]1[C@@]([C@H]([C@@H](O1)O[C@@H]2[C@H]([C@@H]([C@H]([C@@H]([C@H]2O)O)[NH+]=C(N)N)O)[NH+]=C(N)N)O[C@H]3[C@H]([C@@H]([C@H]([C@@H](O3)CO)O)O)[NH2+]C)(C=O)O
Description: The molecule is trication of streptomycin arising from protonation of the guanidino and secondary amino groups. It is a conjugate acid of a streptomycin.