pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.8	Datawarrior	0	-1	O=C([O-])c1cc[nH+]nc1,O=C(O)c1ccnnc1	O=C([O-])c1ccnnc1	mol13608	O=C(O)c1ccnnc1