pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.3	IUPAC digitized pKa	0	-1	CCOP(=O)(CC(=O)O)OCC	CCOP(=O)(CC(=O)[O-])OCC	mol9824	CCOP(=O)(CC(=O)O)OCC
3.48000001907349	QSARToolbox	0	-1	CCOP(=O)(CC(=O)O)OCC	CCOP(=O)(CC(=O)[O-])OCC	mol9824	CCOP(=O)(CC(=O)O)OCC
3.29999995231628	QSARToolbox	0	-1	CCOP(=O)(CC(=O)O)OCC	CCOP(=O)(CC(=O)[O-])OCC	mol9824	CCOP(=O)(CC(=O)O)OCC