Product Name: Tinuvin 328
Chemical Name: 2-(2′-Hydroxy-3′,5′-dipentylphenyl)benzotriazole
Another Name: UV absorber Uv 328
CAS No.: 25973-55-1
Molecular Formula: C22H29N3O
MolecularWeight: 351.49
Appearance: Pale yellow crystalline powder
Assay: ≥99%
Tinuvin 328 Quick Details
Product Name: Tinuvin 328
Chemical Name: 2-(2′-Hydroxy-3′,5′-dipentylphenyl)benzotriazole
Another Name: UV absorber Uv 328
CAS No.: 25973-55-1
Molecular Formula: C22H29N3O
MolecularWeight: 351.49
Appearance: Pale yellow crystalline powder
Assay: ≥99%
Tinuvin 328 Properties
| Item | Specifications |
| Appearance | Pale yellow crystalline powder |
| Assay | ≥99% |
| Loss On Drying | ≤ 0.5% |
| Melting point | 79~85℃ |
| Transmittance | 440nm ≥96.0P0nm ≥97.0% |
UV-328 Function
Ultraviolet Absorbent Tinuvin 328 is a highly efficient light stabilizer for a variety of plastic and organic substrates. Recommended for homopolymer/copolystyrene, polyacrylate, unsaturated polyester, polyvinyl chloride, polyolefin, polyurethane, polycarb, polyacetal, polyvinyl butyral, elastomer, and binder.
Tinuvin 328 is characterized by strong UV absorption, light initial color, good compatibility with most substrates, and low volatility.
It protects polymers and organic pigments while maintaining the consistency of the original appearance and physical properties of the surface of molded articles, films, fibers, and sheets for outdoor use.
Tinuvin 328 Packaging and Shipping
Packing: 25kg/Carton.
Delivery: Within 5-7 working days.
Tinuvin 328 Storage
Stored in a cool dry place out of direct sunlight.
