Cc1nc(C)c(C(=O)O)cc1C(=O)O    mol6422    0_1
Cc1[nH+]c(C)c(C(=O)O)cc1C(=O)[O-]    mol6422    0_2
Cc1[nH+]c(C)c(C(=O)O)cc1C(=O)O    mol6422    1_1
Cc1[nH+]c(C)c(C(=O)[O-])cc1C(=O)[O-]    mol6422    -1_1
Cc1nc(C)c(C(=O)O)cc1C(=O)[O-]    mol6422    -1_2
Cc1nc(C)c(C(=O)[O-])cc1C(=O)[O-]    mol6422    -2_1