pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.04999995231628	QSARToolbox	0	-1	O=C(O)COCC(COCC(=O)O)(COCC(=O)O)c1ccccc1	O=C([O-])COCC(COCC(=O)O)(COCC(=O)O)c1ccccc1	mol36186	O=C(O)COCC(COCC(=O)O)(COCC(=O)O)c1ccccc1