Melting Point and solubility: mp148-149℃, Freely soluble in alcohol，methanol, insoluble in aqueous alkali.

Appearance: light yellow powder crystal

Specification: ≥98%HPLC

Tetrahydropalmatine have analgesia and sedative-hypnotic activity, can depress the chtonic persistent pain and splanchna dull pain. It has effect of promoting blood circulation to remove blood stasis and promoting circulation of qi to relieve pain. It is often used for hypochondriac pain due to stagnation of the liver-qi, stomachache due to stagnation of the stomach-qi, hernial pain.　Tetrahydropalmatine has the protective effect on liver injury induced by carbon tetrachloride in mice.

Packing: 1kg/ aluminum bag
25kgs/ fiber durm or according to customer's demand

Shelf life: 2 years