COc1ccc2nc(N)[n+]([O-])cc2c1 mol7930 0_1 COc1ccc2nc([NH3+])[n+]([O-])cc2c1 mol7930 1_1 COc1ccc2[nH+]c(N)[n+]([O-])cc2c1 mol7930 1_2 COc1ccc2nc(N)[n+](O)cc2c1 mol7930 1_3