Product Description

Chemical name: 2- (2'-Hydroxy-5'-tert-octylphenyl)benzotriazole
CAS No.:3147-75-9                           
Molecular formula:C20H25N3O
Molecular weight:323                          
                                                                    
Appearance: White powder
Melting point,℃:103-105
Assay (HPLC), %: ≥99
Ash, %: ≤0.1
Loss on drying, %: ≤0.3
Transmittance   450nm≥98%     
500nm≥99%

                                                                    
UV ABSORBER YISTAB UV-329 is excellent benzotriazole ultraviolet absorbent with effective absorption of ultraviolet radiation in 270-380 nm region. It is suitable for polyester, rigid PVC, PS, PMMA, PC, ABS resin etc. It is particularly suitable for the protection of polycarbonates. In transparent products and high temperature processing of engineering plastics, its effect is excellent. It can also be used for polyolefin.  info at www.zhiyi-chem.com

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