pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.04	IUPAC digitized pKa	1	0	CC[NH+]1CCCC[C@H]1C(=O)O	CC[NH+]1CCCC[C@H]1C(=O)[O-]	mol10708	CCN1CCCCC1C(=O)O