pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
-0.48	Organic Oxygen Acids and Nitrogen Bases	1	0	Cn1cc[nH+]c1[N+](=O)[O-]	Cn1ccnc1[N+](=O)[O-]	mol6687	Cn1ccnc1[N+](=O)[O-]
0.48	Baltruschat ChEMBL	1	0	Cn1cc[nH+]c1[N+](=O)[O-]	Cn1ccnc1[N+](=O)[O-]	mol6687	Cn1ccnc1[N+](=O)[O-]