Properies:light yellow oily liquid with cumin,unique aroma
Relative density:0.9140-0.9340
Refractive index:1.4800-1.4960
Arsenic(As)%:≤0.0002
Heavy metal(pb dollars)%:≤0.001
Solubility:soluble in ethanol
Content:anethole 50-60% small fennel ketone 10-20%