pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
5.68	IUPAC digitized pKa	0	-1	O=C([O-])Cc1cccc[nH+]1	O=C([O-])Cc1ccccn1	mol8580	O=C(O)Cc1ccccn1
2.57	IUPAC digitized pKa	1	0	O=C(O)Cc1cccc[nH+]1	O=C([O-])Cc1cccc[nH+]1	mol8580	O=C(O)Cc1ccccn1