Chemical Name: Octabenzone
Synonyms: UV-531; Cyasorb UV 531; UV Absorber UV-531; 2-Hydroxy-4-n-octyloxybenzophenone; Benzophenones-12; Octabenzone UV-531
CAS NO.: 1843-05-6
Molecular Formula: C21H26O3
Molecular Weight: 326.43
Appearance: Light yellow crystalline powder
Assay: ≥99%
Octabenzone Quick Details
Chemical Name: Octabenzone
CAS NO.: 1843-05-6
Molecular Formula: C21H26O3
Molecular Weight: 326.43
Chemical Structure:
Appearance: Light yellow crystalline powder
Assay: ≥99%
Typical Properties
| Item | Specifications |
| Appearance | Lightyellowcrystallinepowder |
| MeltingPoint | 47-49℃ |
| Volatile | ≤0.2% |
| Ash | ≤0.1% |
| Transmittance | 440nm≥84.0% |
| 450nm≥94.0% | |
| 460nm≥96.0% | |
| 5000nm≥97.0% | |
| Purity(HPLC) | ≥99% |
Octabenzone Usage
1. Mainly used as light stabilizer for synthetic materials such as polyethylene, polypropylene, polyvinyl chloride, and polyurethane rubber.
2. Widely used in PE, PVC, PP, PS, PC, polycarbonate, plexiglass, polypropylene fiber, and ethylene acetate.
3. It also provides good light stability for dry phenolic and alkyd varnishes, polyurethanes, acrylics, epoxies, and other air drying products, as well as automotive finishing paints, powder coatings, rubber, and other products. The dosage is 0.1-0.5%.
Packaging and Shipping
Cardboard bucket, Net weight: 25 kg per drum.
Octabenzone Storage
Store in a cool and dry-ventilated place.
