pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
1.55	IUPAC digitized pKa	1	0	Nc1[nH]ncc(=O)[nH+]1,Nc1nc(=O)c[nH+][nH]1,[NH3+]c1nc(=O)cn[nH]1	Nc1nc(=O)cn[nH]1	mol9015	Nc1nc(=O)cn[nH]1