pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.3	IUPAC digitized pKa	0	-1	CCCCCCCCCCCCCC(=O)O	CCCCCCCCCCCCCC(=O)[O-]	mol11943	CCCCCCCCCCCCCC(=O)O
4.9	Organic Oxygen Acids and Nitrogen Bases	0	-1	CCCCCCCCCCCCCC(=O)O	CCCCCCCCCCCCCC(=O)[O-]	mol11943	CCCCCCCCCCCCCC(=O)O