pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.23	Datawarrior	0	-1	CNC(=O)C=C(C)C(=O)O	CNC(=O)C=C(C)C(=O)[O-]	mol13137	CNC(=O)C=C(C)C(=O)O