[CH2-][n+]1ncc(O)c2ccccc21 mol26192 0_1 C[n+]1ncc([O-])c2ccccc21 mol26192 0_2 C[n+]1ncc(O)c2ccccc21 mol26192 1_1 C[n+]1[nH+]cc([O-])c2ccccc21 mol26192 1_2