pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
15.5	QSARToolbox	0	-1	C=C(C)CO	C=C(C)C[O-]	mol33802	C=C(C)CO
15.5200004577637	QSARToolbox	0	-1	C=C(C)CO	C=C(C)C[O-]	mol33802	C=C(C)CO