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UV-326(Benzotriazole UV Absorber)CAS: 3896-11-5

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Synonyms: p-Cresol,2-tert-butyl-6-(5-chloro-2H-benzotriazol-2-yl)- (7CI,8CI);2-(2-Hydroxy-3-tert-butyl-5-methylphenyl)-5-chloro-2H-benzotriazole;2-(2-Hydroxy-3-tert-butyl-5-methylphenyl)-5-chlorobenzotriazole;2-(2'-Hydroxy-3'-tert-butyl-5'-methylphenyl)-5-chlorobenzotriazole;2-(3-tert-Butyl-2-hydroxy-5-methylphenyl)-5-chloro-2H-benzo-v-triazole;2-(3-tert-Butyl-2-hydroxy-5-methylphenyl)-5-chlorobenzotriazole;2-(3'-tert-Butyl-2'-hydroxy-5'-methylphenyl)-5-chlorobenzotriazole;2-(5-Chloro-2H-benzotriazol-2-yl)-6-(1,1-dimethylethyl)-4-methylphenol;2-[5-Chloro-2H-benzotriazol-2-yl]-4-methyl-6-(tert-butyl)phenol;2-tert-Butyl-6-(5-chloro-2-benzotriazolyl)-4-methylphenol;5-Chloro-2-(2-hydroxy-3-tert-butyl-5-methylphenyl)-2H-benzotriazole;5-Chloro-2-(3-tert-butyl-2-hydroxy-5-methylphenyl)benzotriazole;A-Light;ADKStab LA 36;Cibatex LF;Phenol,2-(5-chloro-2H-benzotriazol-2-yl)-6-(1,1-dimethylethyl)-4-methyl-; Classification: Other Chemicals
EINECS: 223-445-4 Molecular Formula: C17H18ClN3O
Melting Point: 144-147℃ Boiling Point: 460.4 oC at 760 mmHg
Stability: Water Solubility: Insoluble
Refractive index: 1.628 Flash Point: 232.3 oC
Purity: Appearance: Slightly yellowish powder
HazardClass: Brand Name:
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Detailed Description

 UV-326(Benzotriazole UV Absorber)

Chemical name : 

Introduction: UV-326 is a benzotriazole type ultraviolet light absorber (UVA), imparting good light stability for plastics and other organic polymers. 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.

Molecular formula:C17H18N30Cl
CAS NO : 3896-11-5
Structure :

Appearance : slight yellow powder  Melting Range : 138-141 °C

Transmittance (%) : 460nm≥97  500nm≥98


1. Unsaturated Polyester : 0.2-0.5wt% based on polymer weight

2.PVC: Rigid PVC : 0.2-0.5wt% based on polymer weight

Plasticized PVC : 0.1-0.3wt% based on polymer weight

3.Polyurethane : 0.2-1.0wt% based on polymer weight

4.Polyamide : 0.2-0.5wt% based on polymer weight
Packing: it is available in powder form in a 25kg fiber drum, net weight, with an inner PE liner or 25kg carton.



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PE, PP polyester and coatings.

PackingUV-234 is available in powder form in 25kg carton, net weight, with an inner PE liner or 25kg fiber drum


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