pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.6	IUPAC digitized pKa	0	-1	Cc1c[nH]c(C(=O)O)c1	Cc1c[nH]c(C(=O)[O-])c1	mol9723	Cc1c[nH]c(C(=O)O)c1
4.5999999	OCHEM	0	-1	Cc1c[nH]c(C(=O)O)c1	Cc1c[nH]c(C(=O)[O-])c1	mol9723	Cc1c[nH]c(C(=O)O)c1