pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.9	OCHEM	0	-1	O=C(O)CC(CC(=O)O)OC(=O)O	O=C([O-])CC(CC(=O)O)OC(=O)O,O=C(O)CC(CC(=O)O)OC(=O)[O-]	mol33011	O=C(O)CC(CC(=O)O)OC(=O)O
4.6	OCHEM	-1	-2	O=C([O-])CC(CC(=O)O)OC(=O)O,O=C(O)CC(CC(=O)O)OC(=O)[O-]	O=C([O-])CC(CC(=O)[O-])OC(=O)O,O=C([O-])CC(CC(=O)O)OC(=O)[O-]	mol33011	O=C(O)CC(CC(=O)O)OC(=O)O
5.1	OCHEM	-2	-3	O=C([O-])CC(CC(=O)[O-])OC(=O)O,O=C([O-])CC(CC(=O)O)OC(=O)[O-]	O=C([O-])CC(CC(=O)[O-])OC(=O)[O-]	mol33011	O=C(O)CC(CC(=O)O)OC(=O)O