pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.64	IUPAC digitized pKa	0	-1	O=C(O)CCSCC(=O)O	O=C([O-])CCSCC(=O)O,O=C([O-])CSCCC(=O)O	mol9416	O=C(O)CCSCC(=O)O
4.7	IUPAC digitized pKa	-1	-2	O=C([O-])CCSCC(=O)O,O=C([O-])CSCCC(=O)O	O=C([O-])CCSCC(=O)[O-]	mol9416	O=C(O)CCSCC(=O)O