pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.4	IUPAC digitized pKa	0	-1	Cc1c(O)[nH]c(=O)[nH]c1=O	Cc1c([O-])[nH]c(=O)[nH]c1=O,Cc1c(O)[nH]c(=O)[n-]c1=O,Cc1c(O)[n-]c(=O)[nH]c1=O	mol9378	Cc1c(O)[nH]c(=O)[nH]c1=O