Ultraviolet absorber UV-329
Chemical name:2-(2'-hydroxy-5'-tert-octyllphenyl)benzotriazole
Molecular formula:C20H25N3O
Structural formula:
, soluble in benzene, styrene, ethye acetate, slightly soluble in ethyl alcohol, insoluble in water. It is a efficient light stabilizer, UV 
max:345nm, low volatility, used for polyetyrene, poly (methyl methacrylate), polyester and ABS resins and so on.|
Appearance:
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White powder
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Melting Point
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101-106οC
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Volatile matter
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≤0.5%
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Ash content
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≤0.05%
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Transmissirity
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440nm≥97% 500nm≥98%
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Purity
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≥99%
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Package: 25kg Carton
