pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
7.9	IUPAC digitized pKa	1	0	C[S+](C)CC[C@H]([NH3+])C(=O)[O-]	C[S+](C)CC[C@H](N)C(=O)[O-]	mol9922	C[S+](C)CCC(N)C(=O)O
1.9	IUPAC digitized pKa	2	1	C[S+](C)CC[C@H]([NH3+])C(=O)O	C[S+](C)CC[C@H]([NH3+])C(=O)[O-]	mol9922	C[S+](C)CCC(N)C(=O)O