pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.71	IUPAC digitized pKa	0	-1	O=C(O)CC[C@H]1CCCC1=O	O=C([O-])CC[C@H]1CCCC1=O	mol10452	O=C(O)CCC1CCCC1=O