pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
7.99	IUPAC digitized pKa	0	-1	[NH3+]CC(=O)N[C@@H](CO)C(=O)NCC(=O)[O-]	NCC(=O)N[C@@H](CO)C(=O)NCC(=O)[O-]	mol5377	NCC(=O)N[C@@H](CO)C(=O)NCC(=O)O
3.23	IUPAC digitized pKa	1	0	[NH3+]CC(=O)N[C@@H](CO)C(=O)NCC(=O)O	[NH3+]CC(=O)N[C@@H](CO)C(=O)NCC(=O)[O-]	mol5377	NCC(=O)N[C@@H](CO)C(=O)NCC(=O)O