C22H29N3O
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Ultraviolet Absorbent UV-328
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Product: Views:42Ultraviolet Absorbent UV-328 
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Last updated: 2017-12-14 10:59
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Trade Name Ultraviolet Absorbent UV-328
Chemical Name 2-(2'-Hydroxy-3',5'-di-tert-pentylphenyl)-benzotriazole
CAS NO. 25973-55-1
Molecular Formula C22H29N3O
Structural Formula  
Appearance Light Yellow Powder
Melting Point ≥ 81°C
Volatile ≤0.5%
Ash ≤0.05%
Content ≥99%
Transmittance 460nm≥97%; 500nm≥98%
Application & Usage It is a pale yellowish powder melting point 81°C, soluble in benzene, toluene, ethyl acetate and petroleum ether, slightly soluble in ethyl alcohol and methyl alcohol insoluble in water. It is a excellent ultraviolet absorbent, UV max: 345nm, solubility for polymer is good, volatility is little, mainly used for PE, PP,PS,PVC, poly ester and ABS resins, and so on.
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