pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.6	Datawarrior	0	-1	CC(=O)C(C=O)C(C)=O	CC(=O)[C-](C=O)C(C)=O	mol13485	CC(=O)C(C=O)C(C)=O
4.5999999	OCHEM	0	-1	CC(=O)C(C=O)C(C)=O	CC(=O)[C-](C=O)C(C)=O	mol13485	CC(=O)C(C=O)C(C)=O