pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
9.6	IUPAC digitized pKa	0	-1	C[C@H](O)[C@](C)([NH3+])C(=O)[O-]	C[C@H](O)[C@](C)(N)C(=O)[O-]	mol8447	C[C@H](O)[C@](C)(N)C(=O)O
2.26	IUPAC digitized pKa	1	0	C[C@H](O)[C@](C)([NH3+])C(=O)O	C[C@H](O)[C@](C)([NH3+])C(=O)[O-]	mol8447	C[C@H](O)[C@](C)(N)C(=O)O