pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.9	IUPAC digitized pKa	1	0	NC(=O)c1cc(N)nc(N)[nH+]1,NC(=O)c1cc([NH3+])nc(N)n1,NC(=O)c1cc(N)[nH+]c(N)n1,NC(=O)c1cc(N)nc([NH3+])n1	NC(=O)c1cc(N)nc(N)n1	mol7254	NC(=O)c1cc(N)nc(N)n1