pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.782	OCHEM	0	-1	CCC[C@H](C)C(=O)O	CCC[C@H](C)C(=O)[O-]	mol1889	CCC[C@H](C)C(=O)O