UV Absorber 329
Hosea Chem® supplies UV Absorber 329, CAS 3147-75-9, a hydroxyphenyl benzotriazole UV absorber for plastics, polyesters, PVC, polycarbonate, coatings and polymer stabilization with bulk supply from China. Send Inquiry
Product Description
UV Absorber 329, CAS No.: 3147-75-9
UV Absorber 329 is a hydroxyphenyl benzotriazole ultraviolet absorber with the chemical name 2-(2H-Benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol. It is also known as UV-329, Tinuvin 329, Octrizole and Cyasorb UV 5411.
Product Chemical Properties
Chemical Name: 2-(2H-Benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol
Alternative Chemical Name: 2-(2-Hydroxy-5-tert-octylphenyl)benzotriazole
IUPAC Name: 2-(benzotriazol-2-yl)-4-(2,4,4-trimethylpentan-2-yl)phenol
Common Names: UV Absorber 329, UV-329, UV 329, Tinuvin 329, Octrizole, Uvinul 3029, Cyasorb UV 5411, Seesorb 709
CAS No.: 3147-75-9
Molecular Formula: C20H25N3O
Molecular Weight: 323.43 g/mol
EC No.: 221-573-5
Chemical Class: Hydroxyphenyl benzotriazole UV absorber
UV Absorber Type: Benzotriazole UV absorber
Product Technical Specification
Appearance: White powder
Purity: ≥99% (HPLC)
Melting Point: 103 - 105.3℃
Transmittance: 440nm≥97%, 500nm≥98%
Ash: ≤0.1%
Volatile Matter: ≤0.5%
Applications of UV Absorber 329
1. This product is a high-performance anti-aging agent capable of effectively absorbing ultraviolet light in the 270–380 nm range.
2. It is non-flammable, non-explosive, and non-toxic, making it safe and harmless to use.
3. As it absorbs virtually no visible light, it is particularly suitable for colorless, transparent, and light-colored products.
4. This product is suitable for use with polyester, rigid PVC, polystyrene, PMMA, polycarbonate, ABS resin, and other materials. It is especially effective in transparent products and engineering plastics processed at high temperatures. It can also be used with polyolefins.
Packaging
20kg carton or cardboard drum.
Production Capacity
6400MT/year.
Storage Requirements
Store UV Absorber 329 in a cool, dry and well-ventilated area.
Keep the product in tightly closed original packaging and protect it from moisture, excessive heat and direct sunlight.
UV Absorber 329 Bulk Supply from China
Hosea Chem® supplies UV Absorber 329, CAS 3147-75-9, for industrial applications requiring benzotriazole-based UV protection and polymer stabilization.