Table 7.

Water Solubility (Log S) values of the three predictors for curcumin, trans-resveratrol, quercetin and (1 s,4 s)-eucalyptol. The water solubility is provided in mg/ml and mol/l along with qualitative solubility classes

	Curcumin	Trans-resveratrol	Quercetin	(1 s,4 s)-Eucalyptol
Log S (ESOL)	−3.94	−3.62	− 3.16	− 2.52
Solubility	4.22e-02 mg/ml 1.15e-04 mol/l	5.51e-02 mg/ml 2.41e-04 mol/l	2.11e-01 mg/ml 6.98e-04 mol/l	4.63e-01 mg/ml 3.00e-03 mol/l
Class	Soluble	Soluble	Soluble	Soluble
Log S (Ali)	−4.83	− 4.07	−3.91	− 2.59
Solubility	5.50e-03 mg/ml 1.49e-05 mol/l	1.93e-02 mg/ml 8.44e-05 mol/l	3.74e-02 mg/ml 1.24e-04 mol/l	3.98e-01 mg/ml 2.58e-03 mol/l
Class	Moderately soluble	Moderately soluble	Soluble	Soluble
Log S (SILICOS-IT)	−4.45	−3.29	− 3.24	− 2.45
Solubility	1.31e-02 mg/ml 3.56e-05 mol/l	1.18e-01 mg/ml 5.16e-04 mol/l	1.73e-01 mg/ml 5.73e-04 mol/l	5.45e-01 mg/ml 3.53e-03 mol/l
Class	Moderately soluble	Soluble	Soluble	Soluble