pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.89	IUPAC digitized pKa	1	0	COc1c([NH3+])ccccc1=O	COc1c(N)ccccc1=O	mol6323	COc1c(N)ccccc1=O