pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
9.6	Datawarrior	0	-1	C[C@H]1CCC(=O)C1=O	C[C@H]1C[CH-]C(=O)C1=O	mol12334	CC1CCC(=O)C1=O
9.6000004	OCHEM	0	-1	C[C@H]1CCC(=O)C1=O	C[C@H]1C[CH-]C(=O)C1=O	mol12334	CC1CCC(=O)C1=O