pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
5.81	OCHEM	0	-1	Nc1ccc(C(=O)O)c(N)c1,Nc1ccc(C(=O)[O-])c([NH3+])c1,Nc1cc([NH3+])ccc1C(=O)[O-]	Nc1ccc(C(=O)[O-])c(N)c1	mol20535	Nc1ccc(C(=O)O)c(N)c1