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Oxyresveratrol (Tetrahydroxystilbene, 2,3',4,5'-tetrahydroxystilbene) is a natural compound discovered from Morus alba L. It has an effective inhibitory effect on the dopa oxidase activity of tyrosinase and can catalyze the limit of melanin biosynthesis.
CAS: 501-36-0
Plant Source: Polygonum Cuspidatum Sieb.
Specification: ≥98% (HPLC) Off white powder / ≥50% (HPLC) Brown Powder
CAS: 501-36-0
Source: Synthetic
Specification: ≥99% (HPLC) White powder
CAS: 501-36-0
Plant Source: Grape Peel
Specification: ≥5% (HPLC) Red powder
CAS: 29700-22-9
Specification: ≥98% (HPLC) Off white to white powder
CAS: 42206-94-0
Specification: ≥98% (HPLC) Off white powder
| Item | Specification | Result |
|---|---|---|
| Description: Color Flavor & Odor Particle size |
Off White to yellow powder Characteristic 98% pass through 80 mesh |
Complies Complies Complies |
| Physical: Loss on drying(5h at 105ºC) Ash(3h at 600ºC) Bulk Density |
<5.0% <5.0% 30-60g/100ml |
3.8% 2.67% 33g/100ml |
| Chemical: Heavy metals(as Pb) Arsenic(as AS2O3) Lead |
<3ppm <2ppm <5ppm |
Complies Complies Complies |
| Assay: Oxyresveratrol(by HPLC) |
>98% |
99.05% |
| Microbial: Total microbacterial Count Yeast & Mould Escherichia coli Presence Salmonella |
Max.10,000/g Max.100/g Negative Negative |
Complies Complies Complies Complies |
| Weight | Packing method |
|---|---|
| 1kg | bag/kg, box outside (double plastic bag + Aluminum foil bag inside) |
| 10kgs, 25kg or more | by Drums or carton (2 layers plastic bag inside) |
| Weight | Delivery method | Delivery time | Destination |
|---|---|---|---|
| 1kg-25kgs | EMS, DHL, UPS, Fedex | 3-7days | Door to door |
| 25kgs-100kgs | DHL, FedEx, by Air | 3-7days | Door to door (to Airport by Air) |
| more than 100kgs | by Air | 3-7days | Door to Airport |
| by Sea | 10-35days | Door to port |
Oxyresveratrol (also known as Tetrahydroxystilbene or 2,3',4,5'-tetrahydroxystilbene) is a naturally occurring active compound extracted and discovered from Morus alba L.
Oxyresveratrol shows a powerful and effective inhibitory effect on the dopa oxidase activity of tyrosinase, which plays a major role in regulating and limiting melanin biosynthesis in skin cells.
We supply several varieties, including: 1. Natural Resveratrol (≥98% HPLC off-white powder or ≥50% HPLC brown powder from Polygonum Cuspidatum Sieb.); 2. Synthetic Resveratrol (≥99% HPLC white powder); 3. Natural Resveratrol (≥5% HPLC red powder from grape peel); 4. Oxyresveratrol (≥98% HPLC off-white to white powder); 5. Acetyl Resveratrol (≥98% HPLC off-white powder).
Oxyresveratrol acts as a potent antioxidant that protects cellular DNA against free radical damage. Additionally, it aids in protecting the cardiovascular system, reducing cholesterol and blood viscosity, limiting risks of arteriosclerosis, and exhibiting anti-viral and immune-modulating features.
For orders of 1kg, we pack in double plastic bags and aluminum foil bags inside a carton box. For 10kg, 25kg, or larger quantities, we use drums or cartons. Delivery is facilitated via express services (EMS, DHL, UPS, FedEx), air cargo, or ocean shipping depending on cargo weight and speed preferences.
According to our Certificate of Analysis, our Oxyresveratrol has a standard specification threshold of >98%, with active HPLC testing results reaching up to 99.05% purity, conforming to strict physical, chemical, and microbiological control limits.
