pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.3	IUPAC digitized pKa	0	-1	O=C(O)c1cc(N=Nc2ccccc2)ccc1O	O=C([O-])c1cc(N=Nc2ccccc2)ccc1O	mol11842	O=C(O)c1cc(N=Nc2ccccc2)ccc1O
11.64	IUPAC digitized pKa	-1	-2	O=C([O-])c1cc(N=Nc2ccccc2)ccc1O	O=C([O-])c1cc(N=Nc2ccccc2)ccc1[O-]	mol11842	O=C(O)c1cc(N=Nc2ccccc2)ccc1O