UV Absorber UV-326 (3896-11-5)
1. Basic Information
1. Chemical Name: UV Absorber UV-326
2. Chinese Aliases: 5-Chloro-benzotriazole UV absorber; UV Absorber UV-326; UV Absorbent-326; Light Stabilizer UV-326; 5-Chloro-2-(3-tert-butyl-2-hydroxy-5-methylphenyl)benzotriazole; 2-(2'-Hydroxy-3'-tert-butyl-5'-methylphenyl)-5-chlorobenzotriazole
3. English Name: UV Absorber 326
4. Molecular Formula: C₁₇H₁₈ClN₃O
5. Molecular Weight: 315.8
6. CAS Number: 3896-11-5
7. EINECS Number: 223-445-4
8. Appearance: Light yellow powder or granular solid
· Technical Parameters
Item | Standard
---|---
Appearance | Light yellow powder
Melting Point Range, °C | 137.0–141.0
Loss on Heating, % ≤ | 0.50
Ash Content, % ≤ | 0.10
Transmittance, % | 460nm ≥ 93.0
| 500nm ≥ 96.0
Purity, % ≥ | 99.0
(The above parameters are for reference; actual values are subject to factory test report.)
3. Packaging Specifications:
1. Standard Packaging: 20 kg cardboard drum (lined with double-layer plastic bags) or 20 kg three-in-one paper bag.
2. Customized Service: Can provide specifications like 1 kg aluminum foil bags according to customer requirements.