pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.28999996185303	QSARToolbox	0	-1	CCC(COCC(=O)O)(COCC(=O)O)COCC(=O)O	CCC(COCC(=O)[O-])(COCC(=O)O)COCC(=O)O	mol35144	CCC(COCC(=O)O)(COCC(=O)O)COCC(=O)O