Harpagosides from Devil's Claw Extract:The major chemical component thought to be responsible for the anti-inflammatory activity of devil's claw is harpagoside, a monoterpene glucoside. Harpagoside is found primarily in the roots; secondary tubers contain twice as much glucoside as the primary roots. Flowers, stems, and ripe fruits are essentially devoid of the compound, while traces have been isolated from the leaves. Harpagoside can be progressively hydrolyzed to harpagid and harpagogenin. Commercial sources of devil's claw extract contain 1.4% to 2% of harpagoside.?Specification of Devil's Claw Extract Harpagosides:Specification: 1-5% Harpagosides by UV testColor: fine, deep brown powder.CAS No.: 19210-12-9Molecular Formula: C24H30O11Molecular Weight: 494.49Storage: Store in sealed containers at cool & dry place. Protect from light, moisture and pest infestationShelf life: 2 years when properly stored.Packing: 25KG/Drum.?If you have request for Concentration Devil's claw extract powder, we could supply too. 5:1, 10:1, 20:1, or other ratio, please tell us your requirement. What’s more, we accept OEM service such as tablets pressing & capsules filling.?How to make a Devil's Claw Extract? We have GMP factories to make standardized devil's claw extract with high quality. How to make it??Please see the flow chart as below:?We are Produce Nature's Way Standardized Devil's Claw Extract. So where to buy devil's claw extract supplement? Come on, we are the best supplier of devil's claw extract powder. We have both UV & HPLC test devil's claw standardized extract, for human and for animals, like horses. http://www.nativextract.com/nat...extract-harpagoside.html