pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
5.81	OCHEM	0	-1	CC(=O)C(C(C)=O)C(C)=O	CC(=O)[C-](C(C)=O)C(C)=O,[CH2-]C(=O)C(C(C)=O)C(C)=O	mol31747	CC(=O)C(C(C)=O)C(C)=O