pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.52	Datawarrior	0	-1	NC(=O)C#CC#C/C=C/C(=O)O	NC(=O)C#CC#C/C=C/C(=O)[O-]	mol12893	NC(=O)C#CC#C/C=C/C(=O)O
3.5	QSARToolbox	0	-1	NC(=O)C#CC#C/C=C/C(=O)O	NC(=O)C#CC#C/C=C/C(=O)[O-]	mol12893	NC(=O)C#CC#C/C=C/C(=O)O
3.54999995231628	QSARToolbox	0	-1	NC(=O)C#CC#C/C=C/C(=O)O	NC(=O)C#CC#C/C=C/C(=O)[O-]	mol12893	NC(=O)C#CC#C/C=C/C(=O)O