UV ABSORBER UV 326 CAS NO.3896-11-5 CAS NO.3896-11-5

UV ABSORBER HOSORB-326 has a wide range of indirect food approvals in polyolefin. It has a low volatility at high temperatures and high resistance to thermal degradation and can therefore be used without significant loss or decomposition in the polyolefin compounding and molding processes. 

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

CAS No.：3896-11-5                              

Molecular formular：C₁₇H₁₈ClN₃O

Molecular weight：315.8                               

Appearance: Slightly yellow powder

Assay (HPLC),%: ≥99

Melting point，℃：137-142

Ash, %: ≤0.1

Loss on Drying, %: ≤0.5

Transmittance, %:   460nm≥93%     

500nm≥96%

UV ABSORBER HOSORB-326 has a wide range of indirect food approvals in polyolefin. It has a low volatility at high temperatures and high resistance to thermal degradation and can therefore be used without significant loss or decomposition in the polyolefin compounding and molding processes. It is especially suited for polyolefins and cold cured polyesters. It protects polymers from UV radiation helping to preserve the original appearance and physical integrity, especially for polyolefins and polyester resins.