This product assumes the shape of fish scale with white and silk light or needle-like crystals, and has a bit of benzoic or benzyl aldehyde flavour. This product, which begins to sublimate at 100℃, is hard to dissolve in water but dissolvable in boiling water, alcohol, chloroform and ether, and steady in the air.

Irritate medicine for dephlogistication, and analgesia, partially used in joint and muscle pain and often used as ointment to cure rheumatism