Table 1.

Solubility of Shikonin in various solvents

Solvent	Oleic acid	IPM	Tween-80	Span-80	Glycerin	Absolute ethanol
Absorbance(A)	0.518	0.933	0.761	0.115	0.804	1.866
Solubility(g/mL)	0.0268	0.0482	0.0393	0.00594	0.042	0.0964