pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.01	IUPAC digitized pKa	0	-1	O=C(O)c1cncc(C(=O)O)c1C(=O)O	O=C(O)c1cncc(C(=O)O)c1C(=O)[O-],O=C([O-])c1cncc(C(=O)O)c1C(=O)O	mol6590	O=C(O)c1cncc(C(=O)O)c1C(=O)O
3.69	IUPAC digitized pKa	-1	-2	O=C(O)c1cncc(C(=O)O)c1C(=O)[O-],O=C([O-])c1cncc(C(=O)O)c1C(=O)O	O=C([O-])c1c[nH+]cc(C(=O)[O-])c1C(=O)[O-],O=C([O-])c1cncc(C(=O)[O-])c1C(=O)O,O=C([O-])c1cncc(C(=O)O)c1C(=O)[O-]	mol6590	O=C(O)c1cncc(C(=O)O)c1C(=O)O
5.48	IUPAC digitized pKa	-2	-3	O=C([O-])c1c[nH+]cc(C(=O)[O-])c1C(=O)[O-],O=C([O-])c1cncc(C(=O)[O-])c1C(=O)O,O=C([O-])c1cncc(C(=O)O)c1C(=O)[O-]	O=C([O-])c1cncc(C(=O)[O-])c1C(=O)[O-]	mol6590	O=C(O)c1cncc(C(=O)O)c1C(=O)O