pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.68	Datawarrior	0	-1	CC(=O)C(=O)CC(=O)C(C)=O	CC(=O)C(=O)[CH-]C(=O)C(C)=O	mol14041	CC(=O)C(=O)CC(=O)C(C)=O
4.6799998	OCHEM	0	-1	CC(=O)C(=O)CC(=O)C(C)=O	CC(=O)C(=O)[CH-]C(=O)C(C)=O	mol14041	CC(=O)C(=O)CC(=O)C(C)=O