UV Absorber UV-329 (3147-75-9)
1. Basic Information
1. Chemical Name: UV Absorber UV-329
2. Chinese Aliases: UV Absorber UV-329; Benzotriazole UV Absorber; OK-329; 2-(2'-Hydroxy-5'-tert-octylphenyl)benzotriazole
3. English Name: UV Absorber 329
4. Molecular Formula: C20H25N3O
5. Molecular Weight: 323.43
6. CAS Number: 3147-75-9
7. EINECS Number: 221-573-5
8. Appearance: White or off-white crystalline powder
2. Technical Specifications
Item | Specification
---|---
Appearance | White or light yellow powder
Melting Point, °C | 101-106
Ash Content, % ≤ | 0.10
Light Transmittance, % |
(440nm) ≥ | 97.0
(500nm) ≥ | 98.0
Purity, % ≥ | 99.0
(The above values are for reference; please refer to the factory test report for exact values.)
· Packaging:
Usually 25 kg cardboard drums or composite bags, customizable based on needs.