pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
9.0	IUPAC digitized pKa	0	-1	CC[C@@](C)(O)[C@H]([NH3+])C(=O)[O-]	CC[C@@](C)(O)[C@H](N)C(=O)[O-]	mol8550	CC[C@@](C)(O)[C@H](N)C(=O)O
2.25	IUPAC digitized pKa	1	0	CC[C@@](C)(O)[C@H]([NH3+])C(=O)O	CC[C@@](C)(O)[C@H]([NH3+])C(=O)[O-]	mol8550	CC[C@@](C)(O)[C@H](N)C(=O)O