pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
9.2	IUPAC digitized pKa	0	-1	CCCCCC(=O)CC(C)=O	CCCCCC(=O)[CH-]C(C)=O	mol10924	CCCCCC(=O)CC(C)=O
9.1999998	OCHEM	0	-1	CCCCCC(=O)CC(C)=O	CCCCCC(=O)[CH-]C(C)=O	mol10924	CCCCCC(=O)CC(C)=O