pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
12.2	Datawarrior	0	-1	OC(O)c1ccncc1	[O-]C([O-])c1cc[nH+]cc1,[O-]C(O)c1ccncc1	mol13630	OC(O)c1ccncc1