pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.19	IUPAC digitized pKa	0	-1	COC(=O)C1=C(C(=O)O)[C@@H]2CC[C@H]1C2	COC(=O)C1=C(C(=O)[O-])[C@@H]2CC[C@H]1C2	mol11237	COC(=O)C1=C(C(=O)O)C2CCC1C2