What is Tetrandrine?
Tetrandrine powder (Tet), also known as Hanfangchin A, is derived from the dried root of the plant Stephania tetrandra S. Moore. It’s a bisbenzyl isoquinoline chemical, and it’s an alkaloid. The tetrandrine herb is commonly used in traditional Chinese medicine for its various health benefits.


Tetrandrine Plant Sources:
Stephania tetrandra Powder is extracted from Fourstamen Stephania Root, a pure wild medicinal herb growing on the edge of mountainous hills, grasses, or dwarf forests, in the formation below one meter deep, dry and drought-resistant.
Tetrandrine Specifications :
Tetrandrine solubility is not good, insoluble in water, petroleum ether, soluble in ethanol, etc.
To meet different brands’ requirements, we developed several specifications.
- Soluble in Alcohol: Tetrandrine 10% powder, Tetrandrine 98% powder
- Soluble in Water: Tetrandrine 98% (Cosmetic Grade)
Tetrandrine VS Fangchinoline
Stephania tetrandra extract contains a variety of isoquinoline alkaloids, Tetrandrine, fangchinoline, cyclanoline, dimethyltetrandrine, berbamine, etc.
Tetrandrine and fangchinoline are the main active ingredients. They have the same color and similar functions.
Both have two tertiary amine nitrogen atoms, which are more alkaline. In addition, there are derivatives of dibenzyl isoquinoline, which are more lipophilic.
The difference is that in molecular structure, one in the seven positions is a methoxy group, and the other is a phenolic hydroxyl group, so the polarity of methyl is less than that of ethyl.
| Pharmaceutical Name | Fangchinoline |
| Other Name | Hanfangichin B |
| CAS Number | 518-34-3 |
| Molecular Formula | C37H40N2O6 |
| Molecular Weight | 608.71 |
| Appearance | White to off white powder |
| Specification | 98% |
| Package | 1kg/bag, 25kg/drum |
| Shipment | by international courier, by air, by sea |

Tetrandrine Manufacturing Process
- Extraction. After the powder anti-self, raw material is crushed to reach about 20 mesh, and it is taken three times with 95% ethanol thermal reflux. Finally, the extract is concentrated with an extract of 1.2 specific gravity.
- Precipitation. The extracted extract was added to the appropriate concentration of hydrochloric acid, washed several times, let stand to filter the insoluble, adjusted the PH value with ammonia, and purified the precipitation after the precipitation
- Chromatography. After dissolving the sediment, it was mixed into an appropriate amount of silica gel, dried with 200-300 silica gel ethyl acetate, cyclohexane gradient chromatography, TLC detection, separation of tetrandrine VS fangchinoline, and concentrated in segments
- Crystallization. The obtained 95% of Tetrandrine is repeatedly crystallite zed with ethanol and acetone so that the content of Tetrandrine is more than 98%.
- Crush and dry. The resulting product is placed in phosphorus pentoxide and dried at a constant temperature in a vacuum drying box for 48 hours.
- Inspection of packaging. The finished product is sampled and tested according to the enterprise standard and packaged into storage after passing.
Tetrandrine wholesale price
Bulk tetrandrine powder can be purchased from reputable fourstamen stephania root extract powder suppliers like Cima Science specializing in tetrandrine and stephania extract. The price of different specifications is different. But we always offer our clients the same quality at the best price on the market. Do you have a formula design? Then, we can introduce you to a suitable specification.
Where to buy Tetrandrine Powder in Bulk
Cima Science has over 15 years of providing outstanding herb extracts and nutrition supplements. We pledge to rigorously test each product to ensure purity, strength, and composition. Free samples are available upon your request.
Don’t hesitate to contact us if you are focusing on or need Tetrandrine or other ingredients. We will reply to you in 12 hours.



