- Appearance: White to off-white crystalline powder
- Purity (HPLC): ≥98.0% / ≥99.0%
- Melting Point: 89–92 °C
- Moisture: ≤0.5%
- Residue on Ignition: ≤0.1%
- Heavy Metals: ≤10 ppm
Application
Pterostilbene is a natural polyphenol and methylated analog of resveratrol with higher lipophilicity and bioavailability. It acts as a potent antioxidant, anti-inflammatory, and antiproliferative agent. In pharmaceuticals, it inhibits COX-1/COX-2, suppresses tumor cell growth, and exhibits antifungal and antibacterial activities. It is widely used in dietary supplements for cardiovascular support, lipid regulation, and anti-aging. In cosmetics, it serves as a skin-conditioning and antioxidant ingredient, protecting against UV damage and oxidative stress. It also functions as a food preservative due to its antioxidant properties. In research, it is used to study sirtuin activation, metabolic regulation, and cancer chemoprevention mechanisms.


Safety Information
GHS classification: Eye Dam. 1, Aquatic Chronic 2, Acute Tox. 5 (Oral). Signal word: Danger.
- Hazards: H318 (Causes serious eye damage), H411 (Toxic to aquatic life with long lasting effects), H303 (May be harmful if swallowed).
- Precautions: P273 (Avoid release to the environment), P280 (Wear eye protection), P305+P351+P338 (If in eyes, rinse with water for 15 minutes).
- First Aid: Inhalation – Fresh air; Skin – Rinse with water; Eyes – Rinse 15 min, seek medical help; Ingestion – Do not induce vomiting, call a doctor.
- Storage/Disposal: Store sealed at 2–8 °C; dispose as hazardous waste per local regulations.
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