O=C(O)c1nnc(C(=O)[O-])[nH+]n1    mol9143    0_1
O=C([O-])c1n[nH+]c(C(=O)[O-])[nH+]n1    mol9143    0_2
O=C([O-])c1nnc(C(=O)O)[nH+]n1    mol9143    0_3
O=C([O-])c1n[nH+]c(C(=O)[O-])n[nH+]1    mol9143    0_4
O=C([O-])c1nnc(C(=O)[O-])[nH+][nH+]1    mol9143    0_5
O=C(O)c1nnc(C(=O)O)nn1    mol9143    0_6
O=C([O-])c1nnc(C(=O)[O-])[nH+]n1    mol9143    -1_1
O=C([O-])c1nnc(C(=O)O)nn1    mol9143    -1_2