| Product Name | Pterostilbene |
|---|---|
| CAS No. | 537-42-8 |
| MF | C16H16O3 |
| MW | 256.30 |
| Purity | ≥99% (HPLC) |
| Appearance | White to off-white crystalline powder |
| Packing | 1kg/bag, 25kg/drum, customizable |
| Apply | Anti-aging, antioxidant, cardiovascular protection, cognitive enhancement |
Pterostilbene is a naturally occurring polyphenol compound structurally similar to resveratrol but with higher bioavailability and stability. It is found in blueberries, grapes, and certain tree species, and is recognized for its potent antioxidant, anti-inflammatory, and neuroprotective properties.
High bioavailability (80% vs. 20% for resveratrol)
Potent antioxidant activity, protecting cells from oxidative stress
Supports cardiovascular health by improving blood lipid profiles
May enhance memory and cognitive function
Our pterostilbene is produced from natural plant sources (e.g., Pterocarpus marsupium heartwood or blueberries) using supercritical CO₂ extraction and purification via preparative chromatography, ensuring:
Pharmaceutical-grade purity ≥99.0% (HPLC)
No harmful solvent residues
Stable trans-isomer form for maximum bioactivity
Vegan, non-GMO, gluten-free certification
Available in bulk quantities for supplement, beverage, and cosmetic applications
| Specification | Qualified Testing Result | Actual Testing Result | Test Method |
|---|---|---|---|
| Part 1. Physical & Chemical Analysis | |||
| Appearance | White to off-white crystalline powder | Complied | Visual |
| Odor | Characteristic | Complied | Organoleptic |
| Assay (HPLC) | ≥99.0% | 99.3% | HPLC |
| Loss on Drying | ≤0.5% | 0.11% | USP <731> |
| Residue on Ignition | ≤0.1% | 0.04% | USP <281> |
| Melting Point | 88–92°C | 90.1°C | USP |
| Part 2. Heavy Metal Analysis & Chemical Control | |||
| Total Heavy Metals | ≤10 ppm | Complied | AAS |
| Lead (Pb) | ≤3 ppm | <1 ppm | ICP-MS |
| Arsenic (As) | ≤1 ppm | <0.1 ppm | ICP-MS |
| Cadmium (Cd) | ≤1 ppm | <0.05 ppm | ICP-MS |
| Mercury (Hg) | ≤0.1 ppm | <0.01 ppm | ICP-MS |
| Part 3. Microbiological Analysis & Control | |||
| Total Plate Count (cfu/g) | ≤1,000 | <100 | USP <61> |
| Yeast & Mold (cfu/g) | ≤100 | <10 | USP <61> |
| E. coli | Negative | Negative | USP <62> |
| Salmonella (per 25 g) | Negative | Negative | USP <62> |
1kg/aluminium foil bag, with two plastic bags inside.
Gross Weight: 1.5kg Size: 18cmxH27cm
25kg/fiber drum, with two plastic bags inside.
Gross Weight: 28kg Size: 42cmxH52cm Volume: 0.0625mg/Drum.
DHL / FEDEX / EMS / E-PACKET / BY AIR / BY SEA
1. ≤50kg, Express delivery(DHL /FEDEX) recommended, usually called as DDU service;
2. ≤500kg, Air shipping recommended, usually called as CIF service;
3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;
4. For high value products, please select air shipping and express delivery for safe.
We will contact you within 1 working day, please pay attention to the email with the suffix “forrest@oriherb.com”.
