pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.8	IUPAC digitized pKa	1	0	Cn1c(=O)n(C)c2[nH+]cncc21,Cn1c(=O)n(C)c2nc[nH+]cc21	Cn1c(=O)n(C)c2ncncc21	mol4865	Cn1c(=O)n(C)c2ncncc21