pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
9.72	IUPAC digitized pKa	0	-1	O=C([O-])CC[NH2+]CCO	O=C([O-])CCNCCO	mol8491	O=C(O)CCNCCO
3.4	IUPAC digitized pKa	1	0	O=C(O)CC[NH2+]CCO	O=C([O-])CC[NH2+]CCO	mol8491	O=C(O)CCNCCO