pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.93	IUPAC digitized pKa	0	-1	O=C(O)c1nc2ncncc2[nH]1	O=C([O-])c1nc2ncncc2[nH]1	mol4857	O=C(O)c1nc2ncncc2[nH]1
0.0	IUPAC digitized pKa	2	1	O=C(O)c1[nH]c2cnc[nH+]c2[nH+]1,O=C(O)c1nc2[nH+]c[nH+]cc2[nH]1,O=C(O)c1[nH]c2c[nH+]cnc2[nH+]1,O=C([O-])c1[nH]c2c[nH+]c[nH+]c2[nH+]1	O=C(O)c1nc2[nH+]cncc2[nH]1,O=C(O)c1nc2nc[nH+]cc2[nH]1,O=C(O)c1[nH]c2cncnc2[nH+]1	mol4857	O=C(O)c1nc2ncncc2[nH]1
9.41	IUPAC digitized pKa	-1	-2	O=C([O-])c1nc2ncncc2[nH]1	O=C([O-])c1nc2ncncc2[n-]1	mol4857	O=C(O)c1nc2ncncc2[nH]1