[NH3+]c1nc([O-])c[nH]1 mol16047 0_1 Nc1nc(O)c[nH]1 mol16047 0_2 Nc1[nH]cc(O)[nH+]1 mol16047 1_1 [NH3+]c1nc(O)c[nH]1 mol16047 1_2