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UV Absorber UV-P CAS NO.: 2440-22-4

This product provides ultraviolet protection in a wide variety of polymers including styrene homo- and copolymers, engineering plastics such as polyesters and acrylic resins, polyvinyl chloride, and other halogen containing polymers and copolymers (e.g. vinylidenes), acetals and cellulose esters. Elastomers, adhesives, polycarbonate blends, polyurethanes, and some cellulose esters and epoxy materials.


  • Chemical name: 2-(2'-Hydroxy-5'-methylphenyl)benzotriazole
  • Molecular formula: C13H11N3O
  • Molecular weight: 225.3
  • CAS NO.: 2440-22-4
  • Product Detail

    Product Tags

    Chemical name 2-(2′-Hydroxy-5′-methylphenyl)benzotriazole
    Molecular formula C13H11N3O
    Molecular weight 225.3 
    CAS NO. 2440-22-4

    Chemical structural formula
    UV Absorber UV-P

    Technical index

    Appearance White to light yellow crystal powder
    Content ≥ 99%
    Melting point 128-130 °C 
    Loss on drying ≤ 0.5% 
    Ash ≤ 0.1%
    Light transmittance 450nm≥90%; 500nm≥95% 

    Use
    This product provides ultraviolet protection in a wide variety of polymers including styrene homo- and copolymers, engineering plastics such as polyesters and acrylic resins, polyvinyl chloride, and other halogen containing polymers and copolymers (e.g. vinylidenes), acetals and cellulose esters. Elastomers, adhesives, polycarbonate blends, polyurethanes, and some cellulose esters and epoxy materials.

    General dosage: thin products: 0.1-0.5% , thick products: 0.05-0.2%.
    1. Unsaturated Polyester: 0.2-0.5wt% based on polymer weight
    2. PVC
    Rigid PVC: 0.2-0.5wt% based on polymer weight
    Plasticized PVC: 0.1-0.3wt% based on polymer weight
    3. Polyurethane: 0.2-1.0wt% based on polymer weight
    4. Polyamide: 0.2-0.5wt% based on polymer weight

    Packing and Storage
    Package: 25KG/CARTON
    Storage: Stable in property, keep ventilation and away from water and high temperature.


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