Nc1cc(Cl)nc(O)n1 mol7020 0_1 [NH3+]c1cc(Cl)nc([O-])n1 mol7020 0_2 [NH3+]c1cc(Cl)nc(O)n1 mol7020 1_1 Nc1cc(Cl)[nH+]c(O)n1 mol7020 1_2 Nc1cc(Cl)nc(O)[nH+]1 mol7020 1_3 Nc1cc(Cl)nc([O-])n1 mol7020 -1_1