pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.9499998	OCHEM	0	-1	CCCCCCCCC=CCCCCCCCC(=O)O	CCCCCCCCC=CCCCCCCCC(=O)[O-]	mol32368	CCCCCCCCC=CCCCCCCCC(=O)O