NC(=O)c1c(N)[nH][nH+]c1CC(=O)[O-]    mol13867    0_1
NC(=O)c1c(CC(=O)[O-])n[nH]c1[NH3+]    mol13867    0_2
NC(=O)c1c(CC(=O)O)n[nH]c1N    mol13867    0_3
NC(=O)c1c(CC(=O)[O-])n[nH]c1N    mol13867    -1_1
NC(=O)c1c(CC(=O)O)n[n-]c1N    mol13867    -1_2