pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.0	OCHEM	1	0	[NH3+]CCSCCCCCCCCCC(=O)O	[NH3+]CCSCCCCCCCCCC(=O)[O-]	mol33026	NCCSCCCCCCCCCC(=O)O