Character: It is shallow yellow oleaginous liquid, with perfume like evening primrose.

Specific Gravity: 0.832- 0.910

Refraction: 1.432- 1.510

Boiling Point: 179°C

Optical Rotation: -19°

Content: upon 9.5% linolenic acid

The package: Aluminum bottle packing, 2.5kg/bottle, 5kg/bottle, 10kg/bottle.