pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.7	IUPAC digitized pKa	1	0	CC(C)Cn1ccc[nH+]c1=O	CC(C)Cn1cccnc1=O	mol7357	CC(C)Cn1cccnc1=O