pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
7.57	IUPAC digitized pKa	0	-1	CC(=O)NCC[S@@+]([O-])C[C@H]([NH3+])C(=O)[O-]	CC(=O)NCC[S@@+]([O-])C[C@H](N)C(=O)[O-]	mol8510	CC(=O)NCC[S+]([O-])C[C@H](N)C(=O)O