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High Purity Pterostilbene 99% HPLC Supplier with Good Price

Product Name:     Pterostilbene

Synonym Name:    3′,5′-Dimethoxy-4-stilbenol

CAS. Number:      537-42-8

Molecular weight:  C16H16O3

Specifications:     Pterostilbene 99.0%

Appearance:       White Fine Powder


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Pterostilbene Introduction

Pterostilbene (3',5'-Dimethoxy-4-stilbenol) contains NLT 99.0% of Pterostilbene (C16H16O3), calculated on the anhydrous basis. Pterostilbene as a trans-stilbene, a methylated derivative from resveratrol,it has various biological activities such as anti-oxidation, anti-tumor, hypolipidemic and antibacterial. 

 Specifications of Pterostilbene

Pterostilbene 99.0% HPLC

C18 NMR
1H  NMR
pterostilbene HPLC
Pterostilbene HPLC-MSMS

Benefits of Pterostilbene

 Pterostilbene has anti-tumor activity,Inhibit metastasis of cancer cells (gastric cancer, melanoma, liver cancer).
 Pterostilbene has strong Antibacterial and anti-inflammatory effects five times than trans-resveratrol.
 Pterostilbene has strong Antioxidants ability can improve cognitive function and Cardiovascular health.

Typical specification sheet of Pterostilbene 99%

Analysis Items Specifications Methods
Identifications
  1. NMR 
1H NMR confirms to product structure.
  1. LC-MS
LC-MS Conforms to molecular weight.
  1. HPLC
Retention time of the sample matches with the RS in HPLC purity test.
Physical Tests
Appearance White fine powder Visual
Melting point 92~96℃ GB 617
Bulk density 0.30-0.60g/mL GB 5009.2
Moisture content ≤0.50% GB 5009.3
Residue on ignition ≤0.50% GB 5009.4
Active Ingredients Tests
Pterostilbene Purity ≥99.00% HPLC
Max Single impurity ≤0.10% HPLC
Chemical Tests
Heavy Metals ≤10.00ppm GB 5009.74
Pb<Lead> ≤3.00ppm GB 5009.12
As<Inorganic arsenic> ≤2.00ppm GB 5009.11
Cd<Cadmium> ≤1.00ppm GB 5009.15
Hg<Total mercury> ≤0.10ppm GB 5009.17
Residue of Ethanol ≤5,000ppm GB 5009.262
Residue of Methylbenzene ≤500ppm GB 5009.262
Microbiological Tests
Total Bacterial Counts ≤1,000cfu/g GB 4789.2
Yeasts and Molds ≤100cfu/g GB 4789.15
Coliform group ≤1.0MPN/g GB 4789.3
Salmonella Negative in 10g GB 4789.4
* Conclusion: Conform to above specifications.
* Packaging: 25kg per fiber drum.
* Storage Condition: Preserve in well-closed, tight containers with temperature below 10℃.
* Shelf Life: 3 years when properly stored.

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