pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.39	IUPAC digitized pKa	1	0	CNc1ncc(I)c[nH+]1,C[NH2+]c1ncc(I)cn1	CNc1ncc(I)cn1	mol7470	CNc1ncc(I)cn1