2-(3',5'-di-tert-Butyl-2'-hydroxyphenyl)-5-chloro-2H-benzotriazole

Name: Ultraviolet absorbent UV-327  
Chemical name: 2-(3',5'-di-tert-Butyl-2'-hydroxyphenyl)-5-chloro-2H-benzotriazole
Molecular formula: C₂₀H₂₄N₃OCL
Molecular weight: 357.9
CAS NO.: 3864-99-1
Specifications:

Appearance	Light yellow powder
Content	≥ 99%
Melting point	154-158°C
Loss on drying	≤ 0.5%
Ash	≤ 0.1%

Features and uses:
Ultraviolet absorbent UV 327 is mainly applied to polyvinyl chlornamee, polystyrene, unsaturated resin, polycarbonate, poly (methyl methacrylate), polyethylene, ABS resin, expoxy resin and cellulose resin. UV absorbent 327 almost does not absorbing visible light, particular applicable able to colorless transparent products and colored products. Dosage: 0.1-0.5% for thin products and 0.05-0.2% for thick products. UV-327 can be applied to plastic products for packing foods.

Packing and storage:

Ultraviolet absorbent UV-327 is nontoxic, inflammable, incrossible and stable in storing. It is packed in cardborad drum lined with plastic bags with the capacity of 20 kg per drum and can also be packed according to customers' requirements.