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2-(2H-benzotriazol-2-yl)-p- Phenol

  • Siwin-UA-P
  • Siwin
  • Siwin-UA-P
  • 2440-22-4


Ultraviolet Absorber P (UV-A)

UV Absorber P is a strong absorber of ultraviolet radiation in the 290-400nm region, with low volatility and thermal stability. This product almost does not absorb visible light, especially suitable for colorless transparent and light-colored products.

Typical Physical Properties  

Chemical Name:2-(2H-benzotriazol-2-yl)-p- Phenol

Cas No.:2440-22-4


Yellow powder



Light transmittance

≥95% (440nm) ≥97% (500nm)

Melting point







The product is mainly used for PVC, PET, PC, PMMA, AS, ABS, polypropylene and polyethylene. It can be used with phenolic antioxidants and phosphite esters.

Packaging and Storage

Package: 25kg carton inner with plastic bag or as customer`s requirement.

Storage: Keep container tightly closed in a dry and well-ventilated place.

The use of proper protective equipment is recommended. Excess exposure to the product should be avoided. Wash thoroughly after handling.

All safety information is provided in the Safety Data Sheet.

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