pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.17	IUPAC digitized pKa	0	-1	O=C(O)C[Se]CC(=O)O	O=C([O-])C[Se]CC(=O)O	mol9199	O=C(O)C[Se]CC(=O)O
4.31	IUPAC digitized pKa	-1	-2	O=C([O-])C[Se]CC(=O)O	O=C([O-])C[Se]CC(=O)[O-]	mol9199	O=C(O)C[Se]CC(=O)O