Cn1c(O)nc2nc(O)cnc2c1=O    mol8150    0_1
Cn1c(O)[nH+]c2nc([O-])cnc2c1=O    mol8150    0_2
Cn1c([O-])nc2nc(O)c[nH+]c2c1=O    mol8150    0_3
Cn1c(O)nc2nc([O-])c[nH+]c2c1=O    mol8150    0_4
Cn1c([O-])nc2[nH+]c(O)cnc2c1=O    mol8150    0_5
Cn1c([O-])nc2nc([O-])c[nH+]c2c1=O    mol8150    -1_1
Cn1c(O)nc2nc([O-])cnc2c1=O    mol8150    -1_2
Cn1c([O-])nc2nc(O)cnc2c1=O    mol8150    -1_3
Cn1c([O-])nc2nc([O-])cnc2c1=O    mol8150    -2_1