pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
9.26	IUPAC digitized pKa	0	-1	Cn1[nH]cc2c(=O)ncnc1-2	Cn1[n-]cc2c(=O)ncnc1-2	mol9667	Cn1[nH]cc2c(=O)ncnc1-2