Chemical name: 2-(2'-Hydroxy-3'-tert-5'-methylphenyl)-5-chlorobenzotriazole

• CAS NO:  3896-11-5

• Introduction:

UV-326 is a benzotriazole type UV absorber. It has a high absorption in the wavelength

of 290~400nm. It is also efficient for the light stabilization of polyvinyl chloride, unsaturated

polyurethane, polystyrene, polycarbonate, coatings and lacquers.

• Specification:
  • Appearance: slightly yellowish powder
  • Melting Point: 137~142℃
  • Content (HPLC) : 99% Min.
  • Transmittance: 460nm≥97%   500nm≥98%
  • Ash: 0.1% Max.
  • Loss on drying: 0.5% Max.
• Property:
  • Odorless, don’t bring smell to polymers.
  • Insensitive to metal ion
  • Non-flammable, non-explosion, non-toxic, harmless to health.
  • Very high photo stability for its strong ability to absorb light especially in UV region (290~400nm)
• Very stable to heat and can be used in plastic which require high processing temperature.
• Not stained in alkali. Oil resistant.
• Low volatility, very little or no loss during processing.?
• Package: Net 25kg cartons with inner plastic bag.
• Storage:  UV-326 should be stored in a closed system and be kept in a dry and dark place  without any light exposure.