pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.5	Datawarrior	0	-1	CC[C@H]1C(=O)[C@@H](CC)C1=O	CC[C-]1C(=O)C(CC)C1=O	mol12918	CCC1C(=O)C(CC)C1=O