pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.59999990463257	QSARToolbox	0	-1	O=C([O-])C1=NO[C@@H]2[C@H]1C[NH2+][C@H]2C(=O)O,O=C(O)C1=NO[C@@H]2[C@H]1C[NH2+][C@H]2C(=O)[O-]	O=C([O-])C1=NO[C@@H]2[C@H]1C[NH2+][C@H]2C(=O)[O-]	mol37614	O=C(O)C1=NO[C@@H]2[C@H]1CN[C@H]2C(=O)O