pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.8	IUPAC digitized pKa	0	-1	O=C([O-])c1cc[nH]c(=O)[nH+]1,O=C(O)c1cc[nH]c(=O)n1	O=C([O-])c1cc[nH]c(=O)n1	mol9345	O=C(O)c1cc[nH]c(=O)n1
8.4	IUPAC digitized pKa	-1	-2	O=C([O-])c1cc[nH]c(=O)n1	O=C([O-])c1cc[n-]c(=O)n1	mol9345	O=C(O)c1cc[nH]c(=O)n1