pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.43	OCHEM	0	-1	O=CNCC(=O)O	O=CNCC(=O)[O-]	mol29412	O=CNCC(=O)O
3.4300000667572	QSARToolbox	0	-1	O=CNCC(=O)O	O=CNCC(=O)[O-]	mol29412	O=CNCC(=O)O