UV Absorber 326
Hosea Chem® supplies UV Absorber 326 (Bumetrizole), CAS 3896-11-5, a benzotriazole UV absorber for plastics, polymers, coatings and other UV-sensitive materials with bulk supply from China. Send Inquiry
Product Description
UV Absorber 326, CAS No.: 3896-11-5
UV Absorber 326 is a benzotriazole-type ultraviolet absorber chemically known as 2-(5-Chloro-2-benzotriazolyl)-6-tert-butyl-p-cresol. It is also known as Bumetrizole, UV-326, Tinuvin 326 and 2-(2-Hydroxy-3-tert-butyl-5-methylphenyl)-5-chlorobenzotriazole.
Product Chemical Properties
Chemical Name: 2-(5-Chloro-2-benzotriazolyl)-6-tert-butyl-p-cresol
CAS No.: 3896-11-5
Molecular Formula: C17H18ClN3O
Molecular Weight: 315.80 g/mol
EC No.: 223-445-4
IUPAC Name: 2-(5-Chloro-2H-benzotriazol-2-yl)-6-(1,1-dimethylethyl)-4-methylphenol
Main Synonyms: UV Absorber 326, UV-326, Bumetrizole, Tinuvin 326, 2-(5-Chloro-2-benzotriazolyl)-6-tert-butyl-p-cresol, 2-(2-Hydroxy-3-tert-butyl-5-methylphenyl)-5-chlorobenzotriazole
Chemical Type: Benzotriazole UV absorber
Product Technical Specification
Appearance: Light yellow crystalline powder
Purity: ≥99% (HPLC)
Melting Point: 137-142℃
Volatile Matter: ≤0.5%
Ash Content: ≤0.1%
Transmittance: ≥93% at 460nm, ≥96% at 500nm
Applications of UV Absorber 326
1. This product is a high-efficiency UV absorber capable of effectively absorbing ultraviolet light in the 270–380 nm wavelength range.
2. It is odorless, heat-resistant, and possesses excellent thermal stability.
3. It does not yellow under alkaline conditions and is oil-resistant.
4. It exhibits negligible absorption of visible light, making it particularly suitable for colorless, transparent, and light-colored products.
5. It is primarily used in polyolefins (especially food-grade products), PVC, polyamide, ABS resin, AS resin, and polyurethane.
Recommended addition amount
Polyvinyl chloride: 0.2-0.5%
Polyolefin: 0.2-0.5%
ABS resin: 0.3-0.5%
Packaging
20 kg /carton or cardboard drum.
Production Capacity
12000MT/year.
Storage Requirements
Store in a cool, dry and well-ventilated area.
Keep the container tightly closed when not in use.
Protect from moisture, excessive heat and direct sunlight.
UV Absorber 326 Bulk Supply from China
Hosea Chem® supplies UV Absorber 326, CAS 3896-11-5, for plastic stabilization, polymer protection, coatings, adhesives, masterbatch and other industrial applications.